52ND ANNUAL MEETING

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Florida Scientist

Program Issue

Volume 51

Supplement

FLORIDA ACADEMY OF SCIENCES
1987-1988 OFFICERS

President Leslie Sue

President-Elect Martin Ive

Past-President Pang rati os

Secretary Patrick J.

Treasurer Anthony F.

Executive Seer etary .... Alexander

Editor.. Dean F. Ma

Co-Editor Barbara B.

Program Co-Chairman ... .Patr icia M
Program Co-Chairman. .. .George M.
Jr . Academy

Coordinator Dorothy He

Jr. Academy Director ... John Winds
Visiting Scientist

Coordinator Bruce Wink

Councillors Fred Buoni

Robert Car
Ernest Est
Anthony Pa

Lieberman, University of Florida
y, St. Petersburg Junior College
Papacosta, Columbia College
Gleason, J. M. Montgomery, Cons. Eng
Walsh, Orlando Regional Med. Center
Dickison, Seminole Community College
rtin. University of South Florida
Martin, University of South Florida
Dooris, HDR Engineers, Inc.

Dooris, Saint Leo College

nley. Cardinal Gibbons High School
or, Jr., FI. Institute of Technology

ler. University of Tampa
, Florida Institute of Technology
son, Rollins College
evez. Mote Marine Laboratory
redes, Florida State University

UNIVERSITY

OF TAMPA LOCAL ARRANGEMENTS COMMITTEE

Bruce Winkler,
Wayne Price
Stanley Rice
Ray Schlueter

Chairperson

Terry Snell
Emilio Toro

SECTION CHAIRS

Agricultural Sciences David Bal tensperger , Univ. of Florida

Anthropological

Sciences S. Brian Burkhalter, Univ. of S. Florida

Atmospheric & Oceano-
graphic Sciences.. William Seaman, Jr., Univ. of Florida

Biological Sciences Thomas Crisman, University of Florida

Computer and Math

Sciences Laurene Fausett, FI. Inst, of Technology

Endangered Biota I. Jack Stout, Univ. of Central Florida

Engineering Sciences Betty. Preece, Melbourne High School

Environmental Chemistry ...... Je f frey D. Holler, S. FI. Wat. Mgt. Dist.

Geology & Hydrology Donald W. Lovejoy, Palm Beach Atlantic C.

Medical Sciences Roseann S. White, Univ. of Central Florida

Physical and Space

Sciences Jack J. Brennan, Univ. of Central Florida

Science Teaching.. William Trantham, Florida Keys Comm. Coll.

Social Sciences Horst Freyhofer, FI. Inst, of Technology

Urban & Regional Planning .... Anthony LaGreca, University of Florida

1980 Supplement

i

Program Issue

1988 PROGRAM ISSUE

THE FIFTY-SECOND ANNUAL MEETING OF THE
FLORIDA ACADEMY OF SCIENCES

in conjunction with the

American Association of Physics Teachers
(Florida Section)

Featuring Three Symposia
"Community College Science Teaching,"
"Groundwater Contamination and Protection in Florida"
and

"What is the Impact of Engineering on Florida's Economy-
Today and Tomorrow?"

With Two Plenary Addresses

"Materials to Shape the Future" by Dr. Larry Hench

"Strategies in Tropical Agriculture for the Small Landowner"
by Dr. Hugh Popenoe

PLANT HALL
UNIVERSITY OF TAMPA
May 12-14, 1988

FLORIDA SCIENTIST
Volume 51 Supplement 1

ISSN: 0098-4590

Price : $3.50

published by the Florida Academy of Sciences, Inc.
810 East Rollins Street, Orlando, Florida 32803

Florida Scientist

ii

Volume 51

TABLE OF CONTENTS

FAS Officers Inside Cover

Title Page i

Notices i i

Meeting Information

Location iii

Registration : iii

Lodging iii

Banquet and Meals iv

Announcements iv

Program Summary vi

Program

Florida Academy of Sciences

Agricultural Science (AGR).. 1

Anthropological Science (ANS).. 8

Atmospheric and Oceanographic Science (AOS).. 12

Biological Science (BIO). .14

Computer Science and Mathematics (CSM)..33

Engineering Science (ENG).. 35

Environmental Chemistry ( ENV) . . 36

Geological and Hydrological Sciences (GHY)..40

Medical Sciences (MED).. 46

Physical and Space Sciences (PSS)..47

Rare and Endangered Biota (REB)..49

Science Teaching (TCH)..51

Social Sciences (SOC)..55

Urban and Regional Planning (URP)..56

American Association of Physics Teachers (APT).. 57

Author Index 60

University of Tampa Campus Map Inside Cover

NOTICES I

HANDICAP ACCESS - All meeting rooms in Plant Hall are accessible to !
those in wheelchairs. Meeting participants having special needs should I
contact Dr. Bruce Winkler# Department of Chemistry# University of Tampa
(813-253-3333# ext. 461)

S13-Q.KING - Smoking is prohibited in all interior spaces.

ACKNOWLEDGMENTS - Production of the 1988 Program Issue was made
possible through the support of Saint Leo College and HDR Engineers#

1988 Supplement

iii

Program Issue

MEETING INFORMATION

LOCATION - Founded in 1931, the University o£ Tampa is a private
liberal arts-based institution of 1650 full-time undergraduates.
It is located on the Hillsborough River in downtown Tampa just off
Interstate 275 about 10 minutes from Tampa International Airport.
Please see the map of major roads on the outside of the back cover
and the campus map on the inside of the back cover.

REGISTRATION - ALL PARTICIPANTS ARE EXPECTED TO REGISTER. A
registration desk will be open in the main lobby of Plant Hall
from 7:30 AM to 4:00 PM on Friday, May 13, and from 8:00 AM to
10:00 AM on Saturday, May 14.

The registration fee is $15.00 for members, $20.00 for nonmembers,
and $5.00 for students. Members receive the Flor ida Scientist by
mail, as will others registered by April 4. A late registration
fee of $5.00 will be assessed for members and nonmembers (students
excepted) registering after April 4. Extra programs cost $3.50.

LODGING - No reservations can be made through the Academy. The
following facilities have agreed to the special conference rates
shown if you identify yourself with the Florida Academy of
Sciences. All require a credit card number or one night
prepayment for reservations with the exception of University of
Tampa housing.

Tampa Hilton: 200 Ashley Drive. (813)223-2222. Located in

downtown Tampa within walking distance of campus. A block of
rooms is being held for FAS registrants until April 28, 1988.
Single $50 / Double $60.

Holiday Inn: 111 West Fortune. (813)223-1351. Located in

downtown Tampa; 1 mile from campus. $35 for 1-4 persons.

Howard Johnsons: 702 North West Shore Boulevard. ((813)873-7900.
Located off 1-275, West Shore Boulevard exit; 4.5 miles from
campus. $50/room.

Holiday Inn: 400 East Bearss Avenue. (813)961-1000. Located off
1-275, Bearss Avenue exit; 9.5 miles from campus. $28 for
1-4 persons.

Days Inn: 701 East Fletcher Avenue. (813)977-1550 or (800)325-

2525. Located off 1-275, Fletcher Avenue exit; 8.5 miles

from campus. $28 for 1-4 persons.

Holiday Inn: 10315 East Buffalo Avenue. (813)623-6363 or

(800)334-6610. Located off 1-75, Buffalo Avenue exit; 10

miles from campus. Preregister by April 28, 1988. Single

$45/Double $50.

Budgetel Inn: 4811 U.S. 301 North. (813)626-0885. Located off

1-4, U.S. 301 exit; 8 miles from campus. Single $25/Double
$28 .

University of Tampa: (813)253-6206. Housing available on campus

in the University's newest residence hall. Four room suites

with a common bath area. Preregister by April 28, 1988.

$10/room; linens optional at $3.50.

Florida Scientist

Volume 51

i V

BANQUET AND MEALS - The Academy Social and Banquet will be held on
Friday evening (May 13). The Social will be held from 6:30 until
7:30 on the riverside behind the Student Union Building. Dinner
will be served in Fletcher Lounge a short distance away. Dinner
will consist of one of the following menus: 1) spinach salad,
roast beef au jus, twice baked potatoes, stir fried mixed
vegetables, sesame seed rolls, cherry cheese cake, tea or coffee;
or 2) spinach salad, chicken kiev with supreme sauce, rice pilaf,
green beans almondine, sesame seed rolls, cherry cheese cake, tea
or coffee. You are urged to preregister for the banquet. Only a
few tickets will be available on the day of registration.

The campus cafeteria will be open and Friday. There are numerous
restaurants located in downtown Tampa which is only a ten minute
walk from campus. Many additional restaurants are available
within a ten minute drive. Further information will be provided
at registration.

LOCAL ARRANGEMENTS - Academy meeting arrangements at the
University of Tampa are coordinated by Dr. Bruce Winkler,
Department of Chemistry, who may be consulted on special meeting
needs by calling (813)253-3333, ext. 461.

ANNOUNCEMENTS

FAS MEETING SYMPOSIA - Three symposia will be held as part of this
year's meeting:

1. "Community College Science Teaching," Friday, May 13, 3:00PM-
5:00PM, Plant Hall 354 . This symposium was organized and will be
chaired by william Trantham, Florida Keys Community College.

2. "Groundwater Contamination and Protection in Florida," Friday, Mays
13, 8 : 30AM-11 : 45AM Plant Hall 340. This symposium was organized and(
will be chaired by Patrick Gleason, J. M. Montgomery, Consulting!
Engineers, Inc.

3. "What is the Impact of Engineering on Florida’s Economy - Today

and Tomorrow?," Saturday, May 14, 10 : OOAM-11 : 40AM Plant Hall 210. This
symposium was organized by Betty Preece, Melbourne High School, and
will be chaired by George Knecht, President, Florida Engineering
Society .

PLENARY SESSIONS - Our Plenary Session I speaker this year is Dr. Hugh
L. Popenoe, Professor of Soils, Agronomy, Botany and Geography and
Director of the Center for Tropical Agriculture and International
Programs at the University of Florida. His topic will be "Strategies
in Tropical Agriculture for the Small Landowner."

The annual FAS business meeting will follow Dr. Popenoe's lecture.

Our Plenary Session II speaker is Dr. Larry Hench, Professor of
Engineering, University of Florida. Dr. Hench is the 1987 FA£
Medalist, and his lecture topic will be "Material.s to Shape the
Future." The lecture will follow the FAS Annual Banquet beginning at
7:30 P.M. Friday, May 13.

1988 Supplement

Program Issue

STAND INS AND CANCELLATIONS - If an author or a co-author of a
scheduled paper cannot present the paper due to unforeseen
circumstances, he should arrange for a colleague to read the paper. If
a reader cannot be found, the paper should be cancelled. The Academy
should be notified of a substitute reader or of an intent to cancel.
In such a case, contact either George Dooris (904-588-8338), Patricia
Dooris (813-287-1980), or the appropriate Section Chairman.

RESOURCE ROOM - As part of the special community college session, a
resource room will be open all day Friday. We are asking each
community college instructor attending the FAS meeting to bring items
(eg. demonstrations, teaching aids in any medium, etc.) which may be
of interest to colleagues.

PUBLICATION - Authors of papers presented at this years Annual Meeting
should consider submitting their manuscripts to the Flor Ida Scientist .
the Academy's journal, for publication consideration. Further
information may be obtained from Dean F. Martin, Editor, Flor ida
Scientist . CHEMS Center, Department of Chemistry, University of South
Florida, Tampa, FL 33620 (813-974-2374).

NOTES

Florida Scientist vi Volume ^

PROGRAM SUMMARY

THURSDAY EVENING, MAY 12, 1988

7:30 PM FAS Council Meeting PH 327

FRIDAY MORNING, MAY 13, 1988

7:30 AM Registration (to 4:00 PM)

8:00 AM Agricultural Sciences A PH 210

Environmental Chemistry A PH 209

8:30 AM Biological Sciences A PH 220

Geology & Hydrology A - Symposium PH 340

Science Teaching A* PH 354

8:45 AM Agricultural Sciences B PH 210

9:00 AM Anthropology A* PH 345

Atmospheric & Oceanographic A* PH 343

Biological Sciences B PH 215

Computer & Math A* PH 312

F.C.R.E.P.A. A* PH 213

9:15 AM Environmental Chemistry B PH 209

10:15 AM Agricultural Sciences C* PH 210

11:00 AM Environmental Chemistry C* PH 209

FRIDAY AFTERNOON, MAY 13, 1988

1:30 PM Plenary Session I Dome Room

3:00 PM Agricultural Sciences D PH 210

Agricultural Sciences F PH 210

Biological Sciences C PH 220

Biological Sciences D PH 312

Biological Sciences E PH 215

Geology & Hydrology B* PH 340

Medical Sciences A* PH 213

Physics & Space Science A* PH 209

Science Teaching B - Symposium PH 354

Urban & Regional Planning A* PH 343

4:15 PM Agricultural Sciences E PH 210

FRIDAY EVENING, MAY 13, 1988

6:30 PM Academy Social Riverside

7:30 PM Banquet and Plenary Session II Fletcher Lounge

SATURDAY MORNING, MAY 14, 1988

8:00 AM Registration (to 10:00 AM)

8:30 AM Biological Sciences F PH 220

9:00 AM Biological Sciences G PH 215

9:30 AM AAPT A* ...PH 209

Social Sciences A* PH 213

10:00 AM Engineering Science A - Symposium PH 210

SATURDAY AFTERNOON, MARCH 28, 1987

1:00 PM Engineering Science B* PH 210

1:30 PM AAPT B PH 209

* Business meeting follows this session

1988 Supplement

-1-

Program Issue

AGRICULTURAL ££miC£

FRIDAY 8:00AM PH 210

SESSION A: Phosphate Mine Reclamation

G. M. PRINE, University of Florida, presiding

8:00AM AGR-1 Effect of Nitrogen and Potassium Rates of Application on Broccoli
Yields and Uptake. R.A. JEREZ, E.A. HANLON, AND G.J. HOCHMUTH, University of
Florida, Soil Science, 106 Newell Hall, Gainesville 32611. Data related to the
nutritional properties of Polk County phosphatic clays, as well as their behavior
under different vegetable management systems, are scarce. This study was conducted
to quantify optimum rates of nitrogen- and potassium-fertilizer applications on
phosphatic clays under broccoli (Brassica oleracea var. italica) cultlvar Green
Duke. Fertilizer treatments consisted of different levels of N and K, arranged in a
central composite rotatable design, based on the curri^t TFnS Standardized
Fertilizer Recommendations of 123 kg N ha , and 46 kg K ha . Levels of N ranged
from 0 to 157 kg ha" , and levels of K ranged from 0 to 130 kg ha" . Yields, and N
and K uptake were not affected by the levels of applied N and K. Yields averaged
20_p3 curds ha"^, weighing 3 937 kg ha" . Total uptake averaged 62.8 and 57.9 kg
ha ^ of N and K, respectively, in the plant tops. The concentration levels of N and
K in the leaves averaged 6.4% and 3.2%, respectively.

8:15AM AGR”2 Forage Legume Seed Production on Phos phat ic-Clay Settling Ponds,
D. D. BALTENSPERGER and G. M. PRINE, Agronomy Dept., IFAS 0311, Univ. Of Florida,
Gainesville, FL 32611. High value crops grown on phosphate settling ponds would
help offset the cost of land reclamation. Currently most cool-season forage legume
seed is produced in the Pacific coast states even though the forage crop is grown in
Florida. Trifolium incarnatum , T. vesiculosum, T. pratense , T. repens , and T.
alexandrinum along with two Lolium multif lorum cultivars were grown on a phosphatic-
clay settling pond in Polk, Co., FL. to determine if seed production was feasible.
The small seed types all had inhibited seedling emergence when planted at a depth of
1 cm or deeper in the heavy clay soil. T. subteraneum and T. vesiculosum clovers
were severely reduced in growth by what appeared to be manganese deficiency. Seed
yields of T. alexandrinum and L. multi f lorum were low. Only T. pratense and T.
incarnatum produced near satisfactory levels, and all seed yields appeared to be red
uced by the manganese deficiency.

8:30AM AGR-3 Small Grain Investigations on Phosphatic Clays in South Central
Florida. C.S. GARDNER, 6.M. PRINE, R.D. BARNETT, E.C. FRENCH and D.S. CALHOUN.
University of Florida, Agronomy Dept., Gainesville, 32611. In Florida, production
of small grains (wheat, triticale, oats and rye) takes place mostly in the
Northern region. In this study selected small grain cultivars were tested for
their yield potential on phosphatic clay soil in Polk County. Studies included:

N fertilization at 0, 56, 56/56, 112, 168, and 224 kg ha ; small grain cultivars
and two planting dates, 21 Nov 1986 (early) and 8 Jan 1987 (late). Results showed
no response of_grain yields to applied N. Grain yields at the 0 N rate were 1520
and 2000 kg ha for FL 301 wheat_and FL 201 triticale respectively. This was 25%
higher than thaj: at the 224 kg ha N level. In the small grain cultivar trial,
the 1700 kg ha grain yields of Florico triticale was significantly (p < .05)
higher than the other cultivars and crops. The late planting treatment for both
FL_^01 wheat and FL 201 triticale gave highest grain yields of 1790 and 2270 kg
ha , respectively.

Florida Scientist

-2-

Volume 51

FRIDAY 8:45AM PH 210
SESSION B: Peanut Agronomy

G. M. PRINE, University of Florida, presiding

8:45AM AGR-4 Differential Responses of Maize, Peanut, and Sorghum to Water
Stress. KOKO NZEZA AND J. M. BENNETT, Agronomy Dept., IFAS, Univ. of Florida, !
Gainesville, FL 32611. Although the reasons for differential drought resistance of !
various crops have been proposed, detailed studies of mechanisms responsible for the !
responses of crop species to drought are limited. In a comparative field study,
maize (Zea mays L.), grain sorghum (Sorghum bicolor L.) and peanut (Arachis hypogaea :
L.) were subjected to four water management treatments (full irrigation, irrigation '
when sorghum wilted, irrigation vdien peanut wilted, and rainfed) . Leaf water
potentials during stress ranged from -1.1 to -2.1 MPa. Maize and sorghum were more ,!
sensitive than peanut to water stress as evidenced by wilting and by reductions in j
growth and seed yields. Seed yields of maize ranged from 9.5 to 0.8 Mg per hectare J
across the treatments, while sorghum yields ranged from 6.7 to 3.0 Mg per hectare. ,
In contrast to the cereals v^ich were sensitive to slight water deficits, peanut ,
yields were reduced only as a result of the rainfed treatment. Root development ;
deep in the soil was related to the responses of the crops to water deficits. 1:

9:00AM AGR-5 Growth Relationships Among Plant Parts of High Yield Peanut: L Oty
Matter and Caloric Energy. R. N. GALLAHER, Univ. of Fla., Inst, of Food and Agr. Sd.,
Dept, of Agronomy, GainesviRe 32611. Peanut (Arachis hypogaea) farmers seldom achieve
yields over 3000 kg ha~^. If scientists understood the peanut growth cycle and the uptake
and (Mstribution of dry matter (DM), energy (E) and nutrients in the parts of high yield
peanut, many limitations to obtaining higher yields could likely be achieved by farmers.
This study investigated the DM and caloric E accumulation in ’Florunner’ peanut growing
in a loamy sand soil (Grossarenic Paleudult) beginning at early bloom, 42 days after
planting (DAP) and ending at harvest, 140 DAP. Dry matter accumulated rapidly in both
the leaf and stem tissues until 77 DAP at which time significant development of the peg
and seed had begun. Seed DM and caloric E accumulated rapidly in a linear manner from
77 DAP until 140 DAP. Large quantities of DM stored in the plant during the first 77
Days of vegetative growth were translocated from the leaf and stem to the seed until 135
DAP. C^oric E accumulation was positively .correlated with DM. Final seed yield was
573 g m. Seed E increased from 5870 cal g~^ at 77 DAP to 6880 cal g~ at 140 DAP.

9:15AM AGR-6 Growth Relationships Among Plant Parts of High Yield Peanut: E. N and
P. D. L. OVERMAN AND R. N. GALLAHER, Univ. of Fla., Inst, of Food and Agr. Sci.,
Dept, of Agronomy, Gainesville 32611. Both N and P are needed for protein synthe^ as
weR as numerous other known functions associated with the rate of photosynthesis and
energy transformations in the plant. The objective of this research was to evaluate
growth and development of 'Florunner' peanut (Arachis hypogaea) parts on the basis of N
and P uptake. Samples from a loamy sand soR (Grossarenic Paleudult) were coRected 11
times over the 140 day growth period. Root, stem, leaf, seed and shell parts were
analyzed for N and P concentrations and contents using standard procedures. The uptake
of both elements in the stem and leaf tissues increased rapidly to a maximum at about 77
days after planting (DAP). After 77 days, the N and P contents in the seed and the plant
as a whole increased rapidly, whRe decrea^ng in other plant parts, due to translocation to
the seed. The whole plant total N and P contents increased Rnearly, which indicates that
uptake of these elements continued untR maturity. The P concentration of the seed was
0.40 dag kg~^ at 140 DAP, whRe the N concentration was 5.33 dag kg"^

1988 Supplement

-3"

Program Issue

9* 30AM AGR-7 Growth RelaUonst^s Among Plant Parts of High Yield Peanut: M. K,
Ca and Mg. N. C. GONZALEZ AND R. N. GALL A HER, Ustv. of Fla., Inst, of Food and
Agr. Sci., Dept, of Agronomy, GainesvMe 32611. Potassium, Ca and Mg are required in
large quantities in legume ^ants. AR three cations neutraUze organic adds, aid in salt
balance in cells, and have other spedfic functions in plant growth and development. The
objective of this research was to determine the uptake, redistribution, and interaction of
K, Ca and Mg in 'Florunner' peanut (Arachis hypoqaea) grown in a loamy sand soil
(Grossarenic Paleudult) in Levy Co., Flonda. Whde plant samples were coRected 11 Umes
from 42 days after planting (DAP) to 140 DAP for mineral analysis. The greatest rate of
uptake of each cation was dunng vegetative development to early peg formation. Each
peaked in uptake in the leaf and stem when seed formation began, at which time K in
particular was rapidy lost from these plant parts during the most rapid seed filling period.
The sum of the K + Ca + Mg concentrations tended to remain constant during the entire
growth cyde. The K/Ca + Mg ratio decreased from 0.9 at 42 DAP to 0.5 at 140 DAP
indicating large differences in the rates of uptake among these cations.

9:45AM AGR-8 Growth Relationsh^s Among Plant Parts of High Yield Peanut: IV. Cu,
Fe, Mn and Zn. K. A. O’BRYAN AND R. N. GALLAHER, Univ. or Fla., Inst, of Food and
Agr. Sd., Dept, of Agronomy, GainesvRle 32611. Better understanding of the uptake and
dstnbuUon of micronutrients in plants could help overcome Rmitations in yield potential
of peanut (Aract^ hypoqaea). Research was conducted to evaluate the Cu, Fe, Mn and
Zn uptake and distribution in ’Florunner’ peanut over a 140 day growing season. Peanut
plant parts were sampled 11 times throughout the growing season, washed, dried, ground
and analyzed for micronutrient concentrations using routine procedures. Season-long
uptake of Cu and Mn was similar to dry matter and energy uptake, whereas uptake of Fe
and Zn were erratic. Zinc uptake reached 60% of maximum at 50 days after planting
(DAP), declined to 30% of maximum at 57 DAP then peaked to 100% of maximum uptake at
91 DAP. Iron achieved 86% of maximum uptake by 90 DAP then peaked at 135 DAP.
Copper and Mn were both found to accumuMte in the leaf and fruit parts. Highest
contents of Fe and Zn were found mainly in leaves. A high concentration of Zn was
found in the sheR and seed and Fe was highly concentrated in the root.

10:00AM BREAK

FRIDAY 10:15AM PH 210

SESSION C: General Field Crops

G. M. PRIME, University of Florida, presiding

10:15AM AGR -9 Correlation of Grain Nitrogen in Parents with Leaf Nitrogen and Yield
of FI Lines of Open PoRinated Corn. J. R. ESPAILLAT AND R. N. GALLAHER, Urdv. of
Fla., Inst, of Food and Agr. Sd., Dept, of Agronomy 32611. The frequency of supedor
genes for Improvement of yield, height, ear quaRty, and protein quaRty in the gene pool
of open poRinated cultivars of corn (Zea mays) can be increased through recurrent
selection. The objective of this study to~^ fuR-sibbed crosses in a population of
open poRinated corn for ear quaRty, crude protein, growth variables, and yield.
FuR-dbbed crosses were made in the spring of 1987 at the Green Acres Agronomy farm
from germplasm selected (mass selection) for adaptabiRty in Florida’s hot, humid, and
insect prone summer and faR cRmate over the past 5-yr. Seed from 60 fuR-3.bbed Rnes
made in the spring were tested in the faR of 1987 in a randomized complete b^ck
experiment with six repRcations. Ear, shuck, grain and whole plant yield, insect ratings,
seed and leaf nutrient concentrations and other growth data were coRected. Crude
protein of parent seed ranged from 8.4 to 13.2 dag kg” . Ear leaf N of FI sibbed Rnes
ranged from 2.13 to 3.55 dag kg~^. Correlations wiR be presented on sR variables.

Florida Scientist

-4-

Volume 51'

10:30AM AGR-10 Soybean-Oat Root and Soil Nutrient Distribution Under Four Tillage
Systems. G. C. BRUNIARD AND R. N. GALL A HER, Urdv. of Fla., Inst. Food and Agr. Sd.,
Dept, of Agronomy, Gainesville 32611. Tillage management affects the growth of soybean
(Glycine max) and oat ( A vena sativa). The purpose of this research was to evkluate
crop-root growth and extractable soil nutrients in an 11-yr old soybean-oat experiment
growing in an Arredondo loamy sand soil (Grossarenic Pdeudult). No-tiUage (NT) and
conventional tillage (CT) treatments were prepared with and without in-row subsoR.
Subsoil treatments (NT-h and CT-i-) were imposed on only the soybean crop. Roots and soil
samples were collected in increments to 0.45m depth when soybean and oat were at the
R7 and imlk growth stages, respectively. Total soybean and oat root dry weight (TDW)
were equal for aR treatments, but NT had more TDW than NT+, CT+ and CT treatments in
the upper 0.10m layer for soybean and in the upper 0.05m for oat. Extractable soR Ca,
Mg, P and Zn occurred in greater concentrations in the NT and NT+ treatments for both
crops in the top 0.10m of soil as compared to CT and CT-t-. However, concentrations of K
and Mn in the 0.10m soil layer were greater for NT and NT+ after only the oat crop.

10:45AM AGR-11 Yield Response of a Rye-Soybean, No-TiRage, Double- Cropping System
Affected by Potassium and Nitrogen Fertilization. R. A. ORTIZ AND R. N. GALLAHER,
Univ. of Costa Rica and Univ. of Fla., Inst, of Food and Agr. Sd., Dept, of Agronomy
32611. Appropriate fertRizer recommendations for double-cropping (DC ) systems of smaR
grain-soybean (Glycine max) is important for efficient farming in Florida. This research
evaluated the K and N fertRizer response in a 10 and 11-yr old no-URage rye (Secale
cereale)-soybean DC ^stem. The 2-yr study was conducted in a Grossarenicf Paleudult
near GainesviRe. Rates of N (whole plots) were 0, 39, 78, 117 and 156 kg ha and rates
of K (^t plots) were 0, 45, 90, 135, and 180 kg ha . FertRizers N and K were applied
only to the rye crop. Rye grain yield was damaged by a late freeze both years of_jthe
study. Rye grain showed a positive response to the apf^cation of 117 and ip kg ha~ of
N and K, respectively. Rye dry matter responded to the 78 and 135 kg ha~ of N and^/<,
respectively. Soybean yield showed a response to re^djal K at a rate of 45 kg ha~ .
Thus, if K fertRizer is appRed to the rye crop at a rate of 45 kg K ha there is no need
to apply K fertRizer to the soybean crop in this DC system under these Florida conditions.

FRIDAY 11:00AM PH 210

BUSINESS MEETING: Agricultural Science

G. M. PRINE, University of Florida, presiding

FRIDAY 1;30PM DOME ROOM, PLANT HALL

PLENARY SESSION I: Florida Academy of Sciences

LESLIE SUE LIEBERMAN, University of Florida, presiding

FRIDAY 3:00PM PH 210

SESSION D: General Field Crops

D. S. WOFFORD, University of Florida, presiding

3:00PM AGR-12 Effect of Cropping System, TRlage Management and SoR Type on SoR
Organic ^ Matter. J. F. COREL LA AND R. N. GALLAHER, Univ. of Fla., Inst. Food and
Agr. Sd., Dept, of Agronomy, GmnesviRe 32611. Some reports advocate that no-URage
management buRds up soR organic matter (OM) compared to conventional tRlage, whRe
others disagree for some environments. The purpose of this study was to determine the
influence of cropping history and soR type on changes in soR OM as affected by long-term
no-URage (NT) and conventional tRlage (CT) treatments. Three soR types and six cropping
^sterns form six experiments in Florida and Argentina were included in this study. Soil
^mples were coRected in 0.05 m increments from the 0 to 0.15 m depth and in a 0.15 m
increment from the 0.15 to 0.30 m depth in aR six experiments. In every treatment of aR
experiments soR OM decreased progressively with increadng soil depth. In aR cases NT
was higher in OM near the soR surface compared to CT. Differences in OM between
tillage were minimal when averaged over the 0 to 0.30 m depth indicating that NT may
not buRd up OM at aR compared to CT. BuRd-up of OM at the soR surface is offset by a
proportionate loss in the lower depths within the 0 to 0.30 m sampled area.

1988 Supplement

-5-

Program Issue

3:15PM AGR-13 Partitiordng of Diy Matter in F^-Grown, No-Tillage Tropical Com in
Florida. J. J. BUSTILLO AND R. N. GALL A HER, Urdv. of Fla., Inst. Food and Agr. Sd.,
Dept, of Agronomy, GainesviRe, 32611. Multiple cropping has great potential in Florida
because of the long growing season. This study was conducted to 1) determine the best
plant population for highest yield of tropdcal open pollinated corn (Zea mays) when planted
as a second crop in the late summer in north central Florida and to 2) determine the
partitioning of dry matter ampng the com parts. Six populations were stuc&ed in
increments of 10,000 plants ha”"^ and ranged from 30,000 to 80,000 plants ha~'^. The study
was conducted at two locations on the Green Acres Agronomy Farm on a Arredondo loamy
sand (Grossarenic Paleudult) in 1987. Treatments were replicated four times in a
randomized complete block dedgn. Com was harvested at black layer formation. Plants
were separated into leaves, stalks, shucks, cobs, and grain and dried at 70 C for
estirnation of dry matter production. Maximum yield was obtained at the 80,000 plants
ha"^ population. Ear size did not change with increadng plant population suggesting that
the cool faR temperatures Rkely Rmited maximum genetic yield potential.

3:30PM AGR-14 Change in North Florida Agriculture. J. R. RICH, T. H. LASHLESf,

C. H. HCDGE, C. E. WHITE, AND E. C. FREIOI. Univ. of Fla., Rt. 2, Box 2181, Live
Oak, FL 32060. Ihe economic survival of the Suwannee River Valley of North Florida
is dependent upon the success of its agricultural industries. Acreages of the
traditional cash crops, corn and tobacco, have declined 62% and 49% respectively,
during the past 10 years. In addition, 56.2% of FHA loans within this district are
delinquent as compared to a national delinquency rate of 29.3%. In resj)onse to this
economic decline, the production of alternative crops has increased rapidly.
Vegetable production increased over two-fold between 1982 and 1985. Plantings of
other ”new" crops such as perennial peanut, blueberries, greenhouse tomatoes and
Christmas trees have increased. Itiis shift will be hastened further by the new $4.1
million State Farmers' Market scheduled to open in May 1988. A different and
potentially stronger agriculture is emerging in the Suwannee River Valley Region of
Florida.

3:45PM AGR-15 Florida and Brasil Pusley, Do You Know Which? D. W. HALL, R.A.
DUNN, W.L. CURREY. Florida State Museum, University of Florida, Gainesville, 32611;
Department of Entomology and Nematology, University of Florida, Gainesville, 32611;
Weed Systems, 8186 Alderman Road, Melrose, 32666. Florida Pusley, Richardia scabra
L. , is one of the most common weeds in Florida. Less known is that Brasil Pusley,
Richardia brasiliensis (Moq. ) Gomes, is equally widespread. Fruits and roots serve
to separate the annual Florida Pusley from the perennial Brasil Pusley, otherwise
the two species are very similar in morphology. Swollen roots contain high levels
of Peanut Root-knot Nematode, Meloidogyne arenaria (Neal) Chitwood. This
represents a significant risk of survival of nematodes during fallow or rotation
periods. Brasil Pusley appears to have escaped normal broadleaf control practices
in turf due to its perennial root system. In cultivated crops Florida Pusley is
most common and easily controlled with preemergence control practices. Early
postemergence herbicides are effective, but beyond the juvenile stage control is
poor.

4:00PM BREAK

Florida Scientist

-6-

Volume ^

FRIDAY 4:15PM PH 210

SESSION E: Forage Crops, Alternative Crops
D. S. WOFFORD, University of Florida, presiding

4:15PM AGR-16 Inheritance of a Short Straw Character in Rye (Secale cere^le L.)-
p! L. PFAHLER and R. D. BARNETT, Agronomy Department, University of Florida, Gaines-
ville 32611 and North Florida Research and Education Center, Quincy 32351. Rye
grain yield and quality is often reduced by lodging which is, in part, caused by
extreme plant height. A short straw character which reduces plant height by over
50% and has no obvious adverse morphological effects, has been recently Identified
but its inheritance is unknown. An inheritance study was conducted using two
crosses, each having a normal height cultivar (cvs. 'Florida 401’, 'Florida Black')
as the male parent. The results from each cross were similar and indicated that the
short straw character was partially dominant (PI = 66cm, P2=143cm, -d = about 25cm) ,
had a relatively high broad sense heritablllty value (about 0.59), and was
controlled by 3 loci. No relationship between plant height and individual plant
seed yield was evident. Apparently, the incorporation of this desirable character
should be possible and its use would probably not depress seed yields.

4:30PM AGR-17 Fertilization of Elephantgrass and its Effect on Propagation
Quality of Stems. K.R. WOODARD and G.M. PRINE, University of Florida, Agronomy
Department, Gainesville 32611. Elephantgrass (Pennisetum purpureum Schum.) is
widely propagated with stem cuttings, but many times poor stands result. Possibly
the quality of stem cuttings can be improved by nitrogen fertilization. 'Merkeron'
(tall) and 'Mott' (dwarf) elephantgrass were fertilized in June 1987, with 0, 56,
112, 224 and 336, and 448 Kg ha” of N in a 4-1-2 ratio with PpO^ and K^O in four
replications. In September, 40 stem cuttings from the lower portions of the
elephantgrass tillers, were obtained from each fertility plot and planted uniformly.
The percentage of Mott stem cuttings producing one or more primary tillers 35 days
after planting was 11, 27, 29, 67, 78, and 86% for 0, 56, 112, 224, 336, and 448
Kg ha” N rates, respectively. Percent emergence of Merkeron increased up to the
224 N rate and leveled off at 98%. The total number of primary tillers arising
from the 40 cuttings and their vigor increased dramatically as N rate increased
for both cultivars.

4:45PM AGR-18 Effects of Planting Date on Soybean and Pigeonpea Relayed into
Corn. BIDJA, RACHEL O.E. and C.K. HIEBSCH, 303 Newell Hall, Gainesville, FL
32611. Florida farmers may be able to increase land use and income by relay
planting a second crop into corn ( Zea mays L.). The objectives of this study were
to determine the effects of a corn canopy on 1) the amount of light reaching an
understory crop and 2) the performance of that understory crop when planted at two
row positions and on four dates. Two understory crops - soybean (Glycine m^ L.)
'Kirby' and pigeonpea (Cajanus cajan (L.) Millsp.) '99W' - were planted as sole
crops and as relay intercrops on 4, 16, and 30 June and 13 July, 23 cm to the north
and south of 91-cm wide east-west corn 'Pioneer 3192' rows. Corn was harvested on
28 July. Solar radiation (measured on 26 June, 6 July, and 16 July) reaching the
understory crop was generally less than 30% of total, was greater on the north
understory row early in the morning, and greater on the south row later in the
morning. Yields of both soybean and pigeonpeas were decreased by relay intercrop-
ping, later planting dates, and diseases which were more severe in the intercrops.

1988 Supplement

-7-

Program Issue

5:00PM AGR-19 Rye-Cdmson Clover Intercropping Competition Affected by Tillage and
Fertilizer. M. UYANIK AND R. N. GALL A HER, Univ. of Fh., Inst Food and Agr. Sci.,
Dept, of Agronomy, GainesviRe 32611. Intensified land use by intercropping and other
forms of multiple cropping are important today as scientists attempt to help farmers
become more efficient and economicaRy sound in their farming operations. The objective
of this study was to determine the N requirement and to test the vaRdity of K fertRizer
recommendation for rye (Secale cereale) and crimson clover (TrifoRum incarnatum ) as
intercrops planted in the same row under three different tiRage systems. This study was
conducted on a loamy sand (Grossarenic Paleudult) with tiRage histories as whole plots,
six N rates as spRt plots and two K rates as spRt-spRt plots. TiRage histories cS.d not
affect rye dry matter (DM) clover DM and total rye + clover DM. The less intensively
cropped conventional tiRage history produced higher rye grain yield than the other tiRage
^sterns. Nitrogen fertilizer increased rye DM, total rye + clover DM and rye grain yields
but decreased clover DM yield due to competition from the rye crop. Potas^um
appRcation increased clover dry matter and rye grain yield.

5:15PM AGR-20Herb and Spice Screening for Florida. J.E. MORENO, E.C. FRENCH. F
LE GRAND, G.M. PRINE, J.R. RICH AND R.A. DUNN, University of Florida, IFAS 0311,
Gainesville, Florida 32611. Eight herb varieties are currently being studied for
their commercial potential. Susceptibility of selected herbs to 4 root-knot
nematodes fjeloidogyne spps. (arenaria race 1, M. javanica, and M. incognita Races 1
and 3) was measured. Results of the study found 1) MeloTdogyne Arenaria Race 1
protruding from oregano root with no hyperplasia of surrounding root cells, 2)
galls were not present on oregano or sweet majoram with low level galling detected
on borage, winter and summer savory, and 3) sage and basil appear to be susceptible
to all Meloidogyne spp. tested. Observational field plots have also been
established at Uniy. of Florida campus Agronomy farm. Live Oak AREC and the IMC
phosphate reclamation research site. To date all species have performed well with
few disease and insect problems. Plants established at IMC clay settling ponds
appear to have superior growth compared to plants growing in deep sand inherent to
the other sites.

FRIDAY 3:00-5:30PM
SESSION F: Posters

D. S. WOFFORD, University of Florida, presiding

FAS AGR POSTERseed Yield Potential of Rhizoma Peanut in Florida. P. E. REITH, E.
C. FRENCH, D. D. BALTENSPERGER and G. M. PRINE, Agronomy Dept., IFAS 0311, Univ. of
Florida, Gainesville, FL. 32611. Rhizoma peanuts ( Arachis glabrata Benth.), with
the release of Arbrook and Florigraze, are now recommended for forage production on
well drained soils throughout Florida. Florigraze and Arbrook are currently
vegetatively propagated. Seed from these perennial peanuts have been observed in
the soil following rhizome digging for transplanting. Seed yield from 3
replications of f ive^genotypes of rhizoma peanut, including the released cultivars,
was measured from Ira plots with 1 ra^borders. Variation in seed yield ranged from
an average of less than 1 seed per m for Arbrook to more than 5 seed per m^ for
Arblick. Florigraze was not significantly different from Arbrook in seed yield. It
appears that seed production may be adequate to use as a source of genetic
variation, but that selection for improved seed yield will be required before seed
can be considered as an alternative to vegetative establishment.

Florida Scientist

Volume ^

FAS AGR POSTER Effect of Peanut Stripe Virus on Two Tropical Forage Legumes. G.

S. ZHAO, D. D. BALTENSPERGER, D. E. PURCIFULL, and J. R. EDWARDSON Depts. of
Agronomy and Plant Pathology, IFAS. Alycec lover ( Alysicarpus vaginalis (L. ) DC.) and
hairy indigo ( Indigofera hirsuta L. ) both are summer annual legumes which are used
extensively for hay and soil improvement. Viruses associated with these forage
legumes have been considered to be a potentially serious problem especially other
potyviruses which were shown to significantly inhibit alyceclover plant growth.
Peanut stripe virus (PStV) was first observed in plants raised from seeds imported
from China. The objective of this study was to determine the effect of PStV on
growth of hairy indigo and alyceclover. The experiment was carried out in a two-
factor factorial design with 20 replicates. Four genotypes of alyceclover and three
of hairy indigo were used. Results of the experiment showed that PStV significantly
reduced plant height, plant width, dry weight of roots and tops, and seed yield.
Crude protein content of roots and branch number were significantly increased.
However, there was no effect on crude protein content of tops.

FAS AGR POSTER Ccnparison of Sterilization Techniques and E>^lant Source for
Id Vitro Culture of Five Trcpical Legume Species. K, Bedigian, D. S. Wofford, D.
D. Baltensperger and K. H. Quesenberry. D^iartment of Agronomy, University of
Florida. The objectives of this experiment were to evaluate the efficacy of
sterilization procedures and their interactive effects with different ej^lant
tissues for use in tissue culture experiments. Petioles and leaf disk of
Aeschvnoroene americana L. , Alvsicarous vaginalis (L. ) DC., Arachis glabrata
Benth. , Desmodium heterocarooin (L. ) DC. and Indigofera hirsuta L. were c±»tained
frcm greenhouse grown plant material. Sterilization treatments consisted of time
of iiimersicxi in bleach (0, 30, 60, 90 sec) and time of immersion (0, 30, 60, 90
sec) in ethanol. A factorial arrangement of treatment conrbinations with four
r^lications was used. TVro petiole segments or two leaf disks were evaluated for
each species in a r^licatim. Data and inferences from this experiment will be
pres^ted.

FRIDAY 6:30PM RIVERSIDE, STUDENT UNION BUILDING
SOCIAL

FRIDAY 7; 30PM FLETCHER LOUNGE
BANQUET AND PLENARY SESSION II
FLORIDA ACADEMY OF SCIENCES

ANTHROPOLOGICAL SCIENCE

FRIDAY 9; 00AM PH 345
SESSION A

S. BRIAN BURKHALTER, University of South Florida, presiding

1988 Supplement

-9-

Program Issue

9:00AM ANS-1 Aboriginal Central Florida in the Sixteenth and
Seventeenth Centuries. CLAUDINE PAYNE, Dept, of Anthropology,

Univ. of Florida, Gainesv/ille 32611. Four hundred and fifty years
ago, one of the first Europeans to explore the southeast began a
massive, four-year long expedition. The current interest in
determining DeSoto’s route stems largely From a desire to expand our
knoiiiledge of the aboriginal Southeasterners he encountered.

Expedition journals, documents from iater observers, and
archaeological data provide us with a wealth of valuable information.
This information allouis us to examine three central Florida polities
that were among the first to be contacted by the Spaniards. From
documentary and linguistic evidence, we find data on social,
political, and subsistence aspects of these three small polities:
Urriparacoxi , Acuera, and Dcale. Early maps and archaeological
evidence further allow us to suggest a location for Acuera, the best-
documented of the three polities.

9:15AM ANS-2 Archaeological and Ethnohi storic Evidence for the Location of
Narvaez's Aute. JEFFREY M. MITCHEM, Florida State Museum, Gainesville 32611.
Research on the route of Hernando de Soto's 1539 expedition through Florida has
yielded information useful in identifying sites associated with the 1528 expedition
of Panfilo de Narvaez. Artifacts from the St. Marks Wildlife Refuge Cemetery site
(8Wal5) indicate that this site was probably located near the aboriginal town of
Aute, mentioned in narratives of the Narvaez expedition. If this is correct,
Narvaez's Bay of Horses was located in Apalachee Bay at the mouth of the St. Marks
River. The archaeological and ethnohi stori c evidence supports this hypothesis.

This information allows archaeologists to associate ethnohistorical ly known groups
with particular archaeological sites, which should aid in developing testable
hypotheses about the protohistoric period in northwest Florida.

9:30 AM ANS-3 Pesearch ar. Fort: ucnter . Ui ILL I AN GRAY JOHNEGN, Dept,
of Antnropoiogy , Uni'-', of Florida, Gainesville 32G11. Since the 13B0s,
research at the Fort Center site has suggested that the rie'.'c I opment of
social compie:-:ity in the interior of South Florida was directly
related to the importation of an agricultural system, with corn as the
main crop. Among the evidence cited are the presence of grains of
maize pollen found in prehistoric contexts at the site and the
identification of similar terraforming techniques, believed to enable
savannah agriculture. However, recent analysis of soii samples from
one of the ealiest terraformed earthworks at Fort Center identify the
pH of the soils as too acidic to support corn plants, reveal the
spodic horizon, identified as an impermeable hardpan, uias still intact
and therefore not dug through to facilitate drainage, and provide
envidence that particle size distribution between the samples is too
similar to ascertain whether or not construction of the earthwork
would have prevented flooding or enhanced drainage.

9:45AM ANS-4 Comparison of Late Classic ilaya i;;Drt:shDns . ilriRILYN A.
MASGCN, Dept, of Anthropology, Florida State Un i '.'ers i ty . Tallahassee
32306. PesL;lts of 1907 archaeological testing of Late Classic ^'aya
lithic workships at Colha, Northern Belize, are presented. Lithic
assemblages are compared within and between mounds, and '-ariation in
stone tool products and inorkshop form suggest changes in organization
of production in the Late Classic period. The data will he placed in
context of a series of previous excavations at this lithic: industry
site, conducted through the Center for Archaeological Resoarcli at the
Univ;ersity cof Te;':as at San Antonio under the direction of Dr. Harry .1 .
Shafer and Dr. Thomas R. Hester. Excavations this season uere
conducted as part of settlement research being done at the site by
Eleanor King, of the University of Pennsylvania.

Florida Scientist

-10-

Volume ^ {

10:00AM BREAK

10:15AM ANS-5'’';BhlstDric I lFeways_at^FnJas^SB^ine.^^_^J<_.nr
Department of prenlstoric life at fna fn Bas

Sa !nrsltB Haiti En S Saline Cas a large Ta:no Indian tillage
Saline si , i pen a D and 1520 A.D. and was visinnc. ny i-niL.mnL.^

'’"“a!yeis o? ceramics from He site Pae foensed nn rVne
in 1492. p nature of trade between En Bas Saline and Ot-ber

foUo.uing: ^ Function of ceramics u,ith Tainan culture; and 3'. general

?cenri4 in ceramic production and decoration after the arr-.va,. the

Ssh - H^naniola. Preliminary results mill be presentee anc
^helr significance to Tainan prehistory discussed.

Seif in an Amazonian Tribo:

The

in*in&M ANS-6 "^be Quest for
Nundurucu Indians of Central Brazil. 5. BRIAN CURKHALTE'.R, Department
of Anthropology, University of South Florida, Tampa 39G20 . This
paper explores social and cultural influences on iiunriurucu perceptions
of themselves. Their interactions with members of Brazilian society-
itinerant peddlers, small town merchants, peasants, prospectors ^f or
gold soldiers, airmen, and prost i tutes--have made them aiuare of
Brazilian values and available industrially manufactured prodi.icts .
This, in turn, has affected their own culture and the process by which
they’seek and ’ understand their own social identities

10* 45AM ANS-7 Emergence or Resurgence of Ethnic Identity? - The Basques of
Rioja Alavesa. BARBARA A. HENDRY, University of Florida, Gainesville, Florida,
32611. An investigation of the hypothesis that the origins and intensity of ethnic
identity are not uniform for all groups within defined ethnic entities was carried
out in the sub-region of Rioja Alavesa, Spain. Approximately 10,000 people live in
the fifteen villages of this zone, which is separated from the rest of the Basque
province of Alava by mountains. These communities share ecologically , economically
(family farm viniculture), and socially more with neighboring communities of the
Rioja region than with other Basque areas. Historical and contemporary influences
on perceptions of ethnicity in this border zone were studied. Since Franco's death
in 1975, a newly established Basque regional government has implemented economic,
cultural and linguistic policies which promote Basque identity. In this paper, I
will discuss some of the reactions to, and consequences of, these processes for the
people of Rioja Alavesa.

11:00AM ANS-8 The Social Structure of a New Music Club . Robert
P. Pomeroy, Department of Anthropology, University of South
Florida, Tampa, Florida 33620. The social structre of a new
music club is analized using models from economic anthropology
and e thnomusicology . The formal and informal structures of the
club are discussed and their implication for the expression of
the punk rock subculture- in this community are examined. The
relationship between a subcultures formal organizations and
its mode of expression are discussed in a comparative framework.

11:15AM BREAK

1988 Supplement

-11-

Program Issue

11:30AM ANS-9 Folk Remedies and Use of Over the Counter Drugs.

Rebecca Vollweiler, Department of Anthropology, University of South
Florida, Tampa, Florida 33620. The use of folk remedies in the
treatment of illness and disease is neither new nor is it a recent
phenomena. This paper discusses the use of over the counter drugs
(OTC's), as the modern form of folk remedies, as well as the more
traditional remedies. What, if any, actual value the remedies
possess will be discussed.

11:45AM ANS-10 Analysis of Conflict in the South Atlanric Shrimp
Industry. KATHT R. KITNFR, Dept, of Ant hropo ioyy , Univ. of Florida,

Ga i nes'v' i 1 le 3?B 1 1 . Beginning in the fall of ISR"^, the National
fiarine Fisheries Service started implementation of a new policy that
mould reduce the accidental capture of endangered and threatened
species of sea turtles by commercial shrimp fishermen. The
regulations mandated the use of turtle excluder devices (TEDsi by all
South Atlantic and Gulf of Mexico shrimp boats. This policy created a
highly volatile controversy between the National Marine Fisheries
.Service personnel, the env i ronmenra 1 coalitions, and commercial
fishermen. Under the auspices of the South Atlantic Fishery
Management Council, an anthropological field study uias conducted to
assess fishermen's perceptions of the regulations and the impact they
would have on the U.S. shrimp industry. The results of that study and
further analysis of the origins of conflict between these specific
interest groups uiiil be presented.

12:00PM ANS-lllntegrating Marine Biology and Archaeology; Patterns
of Distribution of the Crown Conch CMelongena corona < . NINA T.
BGRREMANS, Department of Anthropology, University of Florida,
Gainesville 3PG11. Populations of the common crouin conch (Melongena
corona' uiere investigated on two islands on the Florida Culf coast in
the Cedar Keys region. Patterns of size distribution and relativ^e
abundance of the conchs of four oyster bars and one seacrass meadow
were observed. The. results of the analysis, when e:--amined in light of
previous biological and ecological studies, are hypothesized to be
related to a pattern of seasonal adult migration to and from the
oyster bars. The archaeological implications of these findings are
discussed wifn respect to the determination of seasons of aboriginal
occupation and identification of prehistoric estuarine resource
targets .

FRIDAY 12:15PM PH 345

BUSINESS MEETING: Anthropological Science

S. BRIAN BURKHALTER, University of South Florida, presiding

FRIDAY 1:30PM DOME ROOM, PLANT HALL

PLENARY SESSION I: Florida Academy of Sciences

LESLIE SUE LIEBERMAN, University of Florida, presiding

FRIDAY 6:30PM RIVERSIDE, STUDENT UNION BUILDING
SOCIAL

FRIDAY 7:30PM FLETCHER LOUNGE
BANQUET AND PLENARY SESSION II
FLORIDA ACADEMY OF SCIENCES

Florida Scientist

-12-

Volume 51

ATMOSPHERIC MU OCEMQqRAPHIC SCIENCES

FRIDAY 9:00AM PH 343
SESSION A

WILLIAM SEAMAN, JR., University of Florida, presiding j

i

9:00AM AOS-1 An Investigation of the Meteorological Conditions Affecting l|

Dispersion of Ozone in the Tampa Bay Region. DEWEY M. STOWERS, JR. AND
NEVA DUNCAN TABB , University of South Florida, Tampa, Florida 33620-8100.

During the last decade, the ozone levels of both Hillsborough and Pinellas counties j
have significantly increased. Although each county is primarily urban and in close |
proximity, Hillsborough county has traditionally experienced a greater nujtfber of ij

exceedences of the Federal Standards (125 PPM.). An investigation was made to
determine the effects of meteorological elements, principally wind velocity, |

surface temperatures and the seabreeze phenomenon have on the dispersal of ozone j

in the region. In addition the continual expansion areas, and the increase- of
vehicular traffic was also considered. The results of the research indicate that j
the impending ozone crisis is a regional rather than individual county problem. j

S:ibAM AUb-z Phosphorus dynamics in red-tide blooms on the west Florida
Shelf: P requirements for growth and photosynthesis. G.A. VARGO, Dept. Mar. Sci.,
Univ. South Florida, St. Petersburg, FL 33701. The phosphorus (P) requirements
for a bloom of the red-tide dinof lagellate, Ptychodiscus brevis, were estimated to
determine the role of hydrolyzable organic phosphorus and outwelling of P from
Tampa Bay for growth and photosynthetic requirements. Growth, as particulate P,
was calculated from laboratory and field derived P/chl ratios (x -2.5) assuming
exponential growth. Photosynthesis was calculated from a hyperbolic model using a
measured assimilation rate and extinction coefficient. Virtually all of the P
required for growth and photos5mthesis by nearshore and offshore fringe
populations can be supplied by hyrolyzable organic P, while this source
contributes 9 to 70% of the P required in the region of high population density (5
X 10® cell liter' ^). Outwelling of P from Tampa Bay could supply 3.1A mg ra'^ d'^
or 10% of the measured standing stock of inorganic P in nearshore waters.

9:30AM AOS-3 j|^g Particulates in Removing Dissolved Vanadium from

Seawater. CHIH-SHIN SHIEH AND IVER W. DUEDALL, Department of Oceanography and
Ocean Engineering, Florida Institute of Technology, Melbourne, 32901. A study
was carried out to investigate the role of marine particles in removing dissolved
vanadium from seawater in order to understand the geochemical fate of
anthropogenic vanadium in seawater. Ferric oxyhydroxide , Na-montmori 1 Ionite , and
calcium carbonate were used as the adsorbents for this study. Only ferric
oxyhydroxide was found to interact significantly with dissolved vanadium in
seawater. Factors such as solution pH, total solid content, and the concentration
of dissolved vanadium influence the effectiveness of the reaction. A surface
complexation model was used to explain the reaction of dissolved vanadium with
ferric oxyhydroxide in seawater.

1988 Supplement

"13-

Program Issue

9 1 45AM AOS-4 Submerged Pinnacle Reef Complexes, Southern Shelf Lagoon,
Belize, Central America. PRECHT, WILLIAM F. AND MCCLAIN, MICHAEL E., Comparative
Sedimentology Laboratory, RSMAS, Univ. of Miami, Miami Beach 33139. Reefs in the
southern Belize lagoon consist of deeper water isolated pinnacle reef mounds.
These submerged reef complexes are found throughout the southern shelf lagoon at
depths from 25 to 38 meters. The external geometries of the reefs are steep sided
(15® to near vertical in part) and flat topped with all reefs observed growing up
to , but no higher than 8 meters below mean sea level. Coral growth is most
luxurient around the rim of the pinnacles with dense thickets of Acorpora
cervicornls and Agaricia sp« The tops of the mounds consist primarily of soft
corals and gorgonians with scattered coral rubble and skeletal debris. The flanks
of the mounds have living coral communities to depths of approximately 23 meters
which are in turn surrounded by an apron of reef derived skeletal sands and
muds. The growth of these reefs is inferred as the response of co^al growth and
carbonate sedimentation to differential subsidence and sea level fluctuation.

10:00AM BREAK

10;15AM AOS-5 loulmg Communities on f.) i 1 Ash F^eefe off of Vero Etearh
I loruia. DANIEL N. SAVERCOOL , Department of Oceanogr.phy and Qc^;
An r ! Technolocry, Melbourne 32901. On

April, 7, IVQ/, an experimental artificial reef array deployed 2

km off oT tfie central Florida east coast to examine the potenlill for
using stabilized oil ash as a material for marine ar t i f i c i a r e^f
construction. Settlement of t.ie barnacles Balanus ver.us,.,. ...h ri

pf^Tiod shov. no significanf 'differences
i density related to reef type. Abundance of these
fhe.-e ^”1: mortality increased over time on both reef types.

Ihese changes may be due to fish grazing. Deginning i.ith the fifth

b^th I- PJmhitlEite had increased in abundance on

both leef types over time. fo date, there* appear to be no

composition. fouling communities due to reef

10:30AM AOS-6 Do Beds of the Alga Caulerpa prolifera Provide Animal Habitat
Comparable to that of Seagrass? KEHL, M.J.*, R.W. VIRNSTEIN, AND W.G. NELSON*,

*Florida Institute of Technology, Melbourne 32901, Seagrass Ecosystems Analysts, Vero
Beach 32963. Seagrass beds provide extremely valuable habitat and nursery areas for
animals, but are declining throughout the state. In some areas, beds of the alga
prolife are expanding and possibly replacing seagrass. Are such beds of
attached Caulerpa ecological equivalents of seagrass beds? To evaluate the habitat
value of Caulerpa for animals, c^parative sampling was carried out in Caulerpa and
beds of the seagrass H^lodule wrightij. Quarterly sampling used fish traps to compare
nekton, dip nets to conpare smaller mobile species, a special grab sampler to compare
epifauna only, and a posthole corer to compare total fauna. Fish trap sampling
indicates that ^lodule sites tend to have greater number of fishes than Caulerpa
sites (391 vs 78) in summer. In winter, trap samples still collected two times more
organisms in jjalodule than Caulerpa. Preliminary data therefore suggest Caulerpa may
not be an equivalent habitat to Halodule.

Florida Scientist

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Volume ^

10:45AM AOS-7 Effects of Partial Defoliation on the Seagrass Thalassia
testudinum Banks ex Konlg. D.A. TOMASKO AND C.J. DAWES. Dept, of Biology,

Unlv. of South Florida, Tampa 33620. Meadows of the seagrass Thalassia
testudinum dominate the shallow waters of the eastern Gulf of Mexico and
Caribbean and are grazed by numerous species of sea turtles, urchins, and
fish. Partial defoliation, a method commonly used to study the effects of
simulated grazing on terrestrial plants, has not been studied using seagrasses.

In this study, partial defoliation of T, testudinum shoots resulted in increased
productivity of Intact remaining blades. This increase was associated with
Increased photosynthetic rates, and an increase in protein levels. A proportional
increase in ribulose-1, 5-bisphosphate carboxylase oxygenase was seen in intact
remaining blades. Increased productivity was interpreted as being due to a
lessening of nitrogen restraint on remaining Intact blades, and suggests that
nitrogenous leaf components limln ^ situ photosynthetic capacity,

FRIDAY 11:00AM PH 343

BUSINESS MEETING: Atmospheric and Oceanographic Sciences
WILLIAM SEAMAN, JR., University of Florida, presiding

FRIDAY 1:30PM DOME ROOM, PLANT HALL

PLENARY SESSION I: Florida Academy of Sciences

LESLIE SUE LIEBERMAN, University of Florida, presiding

SCIENCES

FRIDAY 8:30AM PH 220

SESSION A: Freshwater Benthic Invertebrates
D. L. Evans, Water and Air Research, presiding

8:30AM BIO-1 Macroinvertebrate Communities of the Oklawaha Chain
of Lakes. T.L.Crisman, Dept, of Environmental Engineering Sciences,
University of Florida, Gainesville 32611. Benthic macroinvertebrate
communities were monitored quarterly during 1976-1980 in Lakes Apopka,
Beauclair, Dora, Eustis, and Griffin as part of a synoptic survey of
cultural eutrophication in this lake chain. All lakes were dominated
by oligochaetes , chironomids and Chaoborus with mean abundance being
lowest in Apopka and highest in Dora. The low values foi' Apopka are
attributed to the highly flocculent nature of the sediment.

Comparison with earlier surveys suggests that the fauna in the lakes
has changes little since at least 1962. Data f j-om these five lakes
will be compared to other Florida lakes and a preliminary benthos
calibration model for Florida lakes will be discussed.

1988 Supplement

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Program Issue

8:45AM BIO-2 Quantitative Sampling of Everglades Microinvertebrate Commian-

ities Using Pattern Sample Arrays. ROXANNE CONRav, AND WILLIAM F. LOFTUS, South
Florida Research Center, Everglades National Park, p.O, Box 279, Hcoiestead 33030.
When Shark River Slough was divided by a canal in 19^7, the northeastern portion
(NESS) outside Everglades National Park (ENP), was deprived of its historical water
input, thereby shortening the hydroperiod of its marshes. Beginning in October 1985,
we sampled aquatic animal communities in NESS marshes and longer hydroperiod marshes
in ENP. We tested the hypothesis that marsh hydroperiod controls the extent of
community development, which in turn defines marsh food webs. Pattern sample arrays
captured greater numbers and more taxa of microinvertebrates than did core samples
taken at the same sites. Preliminary results indicate densities and species diver-
sity are lower in marshes with shorter flooding periods and that this effect is
transferred along the entire food web. These results support the need to restore
water flow to NESS to increase its value as a wetland.

9:00am BIO-3 Rapid Biological Water Quality Assessment Techniques for Sampling
Wetlands and Other Aquatic Habitats in Florida. P. H. CARLSON, PH.D., Research
Associate. Florida State Collection of Arthropods, Gainesville, Florida 32601.

Various state regulatory agencies in the Southeastern United States, as well as the
Environmental Protection Agency, have adopted rapid biological water quality assess-
ment techniques for compliance monitoring, wetlands monitoring, and/or ambient
stream monitoring of the fishes and aquatic macroinvertebrate communities. The
merits and shortcomings of these rapid bio-assessment methods are described and com-
parisons are made with standard quantitative sampling methods. The most advanta-
geous rapid biological water quality assessment techniques for each type of aquatic
habitat are described, including the timed-qualitative method, and time/area quali-
tative method. Different methods in use by various state regulatory agencies have
unique merits when considering time, cost, equipment and supplies, personnel, in-
tended use of the data, i.e., litigation, ambient monitoring, compliance monitoring,
and wetlands reclamation monitoring.

9:15AM BIO-4 Oligochaete Assemblages of a Natural Freshwater Marsh and a
Reclaimed Marsh in South Central Florida. D. L. EVANS, Water and Air Research,

Inc., 6821 S.W. Archer Road, Gainesville, Florida 32608. This study was designed to
document the seasonal changes in species composition and abundance of benthic com-
munities in a newly created marsh and a nearby natural marsh. Core samples were col-
lected quarterly from each marsh for a 1-year period. Early assemblages in the
reclaimed marsh were numerically dominated by naidids, but within the first year dom-
inance shifted to tubificids. Naidids were consistently more abundant than tubifi-
cids in the natural marsh. Differences between oligochaete assemblages of the two
wetland systems are attributable to differences in substrate availability, water
quality, and oligochaete life histories. The usefulness of oligochaetes in deter-
mining the functional characteristics of reclaimed wetlands will be discussed.

9:30AM BIO-5 Effects of Phosphate Mining and Processing on Lotic Macroinverte-
brates in Central Florida. D. J. ROBERTSON, Florida Institute of Phosphate Re-
search, 1855 West Main Street, Bartow, Florida 33830. Aquatic macroinvertebrates
inhabiting three similar second-order Central Florida streams separated by less than
three miles were sampled for one year. The reference stream flowed through an undis-
turbed bay swamp. The sampled reach of Stream A flowed through a channel excavated
on reclaimed land, but most of the water shed was unmined. In contrast, the major-
ity of the natural watershed of Stream B had been replaced by clay-settling ponds
and a phosphogypsum storage area, but the sampled reach had never been mined. The
invertebrate fauna of Stream A was very similar to that present in the reference
stream, whereas the fauna of Stream B was depauperate in terms of composition and
diversity as a result of severe upper watershed disturbances.

Florida Scientist

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Volume ^

9:45 AM BIQ-6 Mac r oi nver t ebr at e community structure in a Florida sand
bottom stream. H. Meier and T. Crisman, Dept. of Environmental Eng.
Sci., University of Florida, Gainesville, 32611. A year long study of
benthic macroinvertebrate community structure (feeding guilds) was
carried out in Blues Creek, a sand bottom first order stream in
North-Central Florida. Macroinvertebrate downstream distribution was
related to substrate type. More heterogeneous substrates supported a
greater diversity of species. Col 1 ec t or -gat her er s were quantitatively
the most important group at all stations with filterers becoming more
important <ie. increased in abundance) with increasing distance
downstream. Shredders were quantitatively less important than would be
predicted by the river continuum theory. Comparison with temperate
first order streams is discussed.

10:00 AM BREAK

10:15 AM BIO-7 The population dynamics of pollution intolerant
macroinvertebrates in Reedy Creek. M.A. Halvorsen, RCID Environmental
Laboratory, P.O. Box 10170, Lake Buena Vista, 32830. Eleven sample
points on Reedy Creek have been quantitatively sampled on a quarterly
basis since 1981. Reedy Creek has been partially canalized and
receives advance treated wastewater effluent. Nine biological and
chemical parameters were obtained for each incubation period. the data
base obtained is analyzed for the significance of Class 1 and Class 2
macroinvertebrates at the various points.

10:30 AM BIO-8 Recolonization of the macroinvertebrate and fish
populations in a west -central Florida stream following total oxygen
depletion. R.A. Schlueter, W.L. Smith, and W.W. Price, Division of
Science and Math, Univ. of Tampa, 33606. From mid-January to March 1,
1981, Blackwater Creek in Hillsborough County was polluted ba a large
volume of wastewater from two citrus-processing plants. the organic
pollution caused total oxygen depletion, high total col i form density,
and the decimation of the macroinvertebrate and fish populations.
Improved clarity and odor occurred after one month of abatement. The
dissolved oxygen concentration and total col i form number were normal by
May. The occurrence of a great variety of invertebrates was apparent
by June. Fish r ecol oni z at i on seemed to have occurred by late summer.

10:45 AM BIO-9 Studies on the Gulf sturgeon, Acipenser oxyrhynchus
desot i , in the Suwannee River, Florida. W.T. Mason, Jr. National
Fisheries Research Center. U.S. Fish and Wildlife Service, Gainesville,
32606. Sturgeon populations along the southeastern U.S and Gulf Coasts
are at low levels of abundance, giving private and commercial anglers
concern that the species may be unable to return to pre-decline
standing stocks. Florida has placed a ban on capture of Gulf sturgeon
and the strain is under Federal review for placement on the Category 2
(possible endangered) list. Co-operative research by the State of
Florida and the Service is underway to gather basic information on life
history stages of the Gulf sturgeon to assist with future management
decisions concerning natural stocks. Food-related research addressing:
(1) kinds, abundance, and distribution of natural foods; (2) sturgeon
feeding and contributions of various foods to sturgeon energy
requirements; and (3) effects of unusual climatic and geophysical
events on sturgeon foods, will be presented for the Suwannee River,
Florida, studies.

1988 Supplement

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Program Issue

11s 00AM BIO-10 Aquatic Invertebrate Predation Rates On Mosquito Larvae from Labora-
tory Studies. R. E. MCLAUGHLIN, USDA, ARS, Inspects Affecting Man and Animals Labo-
ratory, P.O. Box 14565, Gainesville, Florida 32604. Dragonflies, coleopterans and
hemipterans and crayfish were fed Aedes aegypti larvae in laboratory tests. Abun-
dant larvae were provided daily to provide data on maximum potential predation in
small containers. Daily dry weight intake, stage duration and estimated lifetime
prey consumption were obtained for 22 commonly occurring species in permanent fresh-
water ponds in Alachua County. A relative index of predatory efficiency was con-
structed on the basis of the estimated lifetime predation of each species compared
to one species with the highest daily prey ingestion. Predator behavior factors as
related to potential predator effectiveness are discussed.

11 1 15AM BIO-11 The Role of Extracapsular Mucus in Eggshell Formation of the Flori-
da Apple Snail. C.M. NORLUND AND R.L. TURNER, Dept. Biol. Sci., Fla. Inst. Technol.,
Melbourne 32901. The aquatic Florida apple snail lays terrestrial eggs on emergent
vegetation. Newly oviposited clutches of 15-60 eggs change color as the extracapsu-
lar mucus dries and as the eggshell becomes calcified. The role of mucus in eggshell
formation was examined by analysis of calcium (Ca) distribution in newly oviposited
clutches using atomic absorption spectroscopy and by ultrastructural examination of
shell layers using SEM. Eggshell had the highest percentage of Ca by dry weight
(37.0+1.8%; n=4 clutches); the embryo had a moderate amount (18.2+2.1%); mucus

had little Ca (8.7+2. 1%). By dry weight alone, computation of Ca content gave the
following (mg/egg): shell, 1.03+0.29; embryo, 1.07+0.21; mucus, 0.0273+0.0076.
The dried mucus, composed of several thin fibrous spongy layers, can be as Thick as
the underlying crystalline shell. The mucus does not seem to contribute substantial-
ly to calcification of the newly oviposited eggshell but might regulate shell perme-
ability. Supported partly by a Sigma Xi Grant-in-Aid of Research to CMN.

FRIDAY 11:30AM PH 220

BUSINESS MEETING: Biological Sciences

THOMAS CRISMAN, University of Florida, presiding

FRIDAY 1;30PM DOME ROOM, PLANT HALL

PLENARY SESSION I: Florida Academy of Sciences

LESLIE SUE LIEBERMAN, University of Florida, presiding

FRIDAY 9:00AM PH 215

SESSION B: Toxicology and Microbiology

A. E. KELLER, University of Florida, presiding

9:00AM BIO-12 Identification of heavy metal-containing wastewater using micro-
bial toxicity tests. C.N. MAZIDJI, B. KOOPMAN AND G. BITTON, Dept. Env. Engr. Sci.,
Univ. of Florida, Gainesville 32611. The analytical determination of toxic pollu-
tants proceeds by quite different techniques depending on whether the pollutants
are heavy metals or organic compounds. The present research was conducted to devel-
op a rapid means of distinguishing between toxicity caused heavy metals and toxicity
caused by organics. Assay was based on the difference in sensitivity between B-D-
galactosidase activity and B-D-galactosidase biosynthesis to the different classes
of wastewater pollutants. The performance of the assay was confirmed based on pure
compounds as well as toxic wastewaters from a large municipal wastewater system.

Florida Scientist

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vel ume 51

9; 15AM BIO-13 Development of a Monoclonal Antibody Procedure for the Detection
of Salmonella enteritidis in Environmental Samples. R.L.Brigmon, S.G.Zam, G.Bitton,
and S.Farrah. Dept. Env.Eng. and Dept. Micro, and Cell Sci., U.Fla., Gainesville, ;
32611. Salmonella are bacterial pathogens of great concern from the public health (
viewpoint. Accurate detection of Salmonella from environmental samples is diffi- I
cult and time-consuming. A procedure utilizing monoclonal antibodies (mAb's) was |
developed to assay environmental samples for the presence of Salmonella enteritidis. i
Hybridoma cell cultures producing mAb's to S. enteritidis were developed in the lab- ^
oratory. These cells were derived from the^fusion of murine B cells (BALB/c) immun-
ized vivo and vitro with both live and inactivated enteritidis and myeloma
cells (SP2/O-AGI4) cloned ^ vitro. A radioimmunoassay (RIA) was developed to test
for the presence of antibody in cell culture supernatant. As few as S.enteri- |

tidis per ml could be detected with the RIA. The test results were positive or nega-
tive for the presence of Salmonella as in the standard procedure. The entire mAb
procedure could be performed in 72 hours for environmental samples.

9:30AM BIO-14 The Loss of Black Chappie from Lake Weir, Florida: A
Toxicological Problem? A.E. Keller^, T.L. Crisman^ , S. McKinney , T.
Goldsby . ^Dept. Env. Eng. Sci., Univ. Fla., Gainesville 32611;
^Florida Game ^nd Fresh Water Fish Commission, 1239 S.W. 10th St.,
Ocala 32674; “^Dept . Fish, and Allied Aqua., Swingle Hall, Auburn
Univ., Auburn, AL 36849. Although black crappie has been an important
sport fish in Lake Weir, Florida for decades, population surveys have
located only eight crappie since 1983. An analysis of factors
potentially responsible for such a loss has been underway since 1983.
Three causative agents have been examined: lake eutrophication, fish '

pathogens and toxic substances. Based on a comparison of past and
current conditions, no significant changes in lake trophic status has
occurred. Neither fish pathogens nor toxic chemicals have been
measured at harmful levels. Details of the investigation and possible
explanations are discussed with regard to watershed changes, weather
and a combination of factors.

9:45AM BIO-15 Arnnionia toxicity in hybrid striped bass: lethati ■

concentrations and biochemical effects., J.B. OPPENBOFd'l , Natl. Fish. |
Res. C e n t e r , Gainesville, F" 1 . 326 0 6 . C i.i 1 1 u r e a n d p r o f :< a g a t i. o n o f i

hybrid striped bass ( N o r- o n e s a x a t i 1, i s x M. chrysops) holds promise for i
b o t h F“- 1 o r i d a a. q u a c u. ]. t ix r" i s t s and r" e c r" e a t i o n a 1 f i s e r' ai a n . A 1 1 hi c;:< i.i g 1 1 t his ;
Kip) ec i es is r ep or t ed 1 y h ar tJ i er t h an e i t li er p ar en t sp e?c i es , 1 i 1 1 1 e is

h; n o w n a b o o t i t ss r e s i s t a n c e t o t o x ins, especially b i o g e n i c. p o i s o n s t h a t
ciri.se in c •...i 1 1 n re s y s t e ni s . T hi e pres e n t s t u d y will d e t e r m i n e L C 5 0

values of ammonia on hybrid striped bass in calcium rich water.

Biocliemical parameters including plasma cortisol, glucoses, blood
a fTi m o n i a , p 1 a s (n a i o n s , tj I o o d g a s e s a n d hi e ai a t o t: r i t w ;i. 1. 1 I j e m e a s u r e d i n
c o n t r o 1 f i s F i and 1 n f i s F i a f t e r e x p o s u r e t o s u b 1 e 1 1' i a 1 1 i - v C' 1 s o f a ni mi o n i a

to quantify the effects of ammoniai on the speciFjc physiologic
functions of ion balance, cortisol secretion., and glucose
mobilization.

10:00AM BIO-16 Microbial Study of Frenchman's Creek. JANET |

DOUGLAS, Eckerd College, St. Petersburg, Florida 33733. i

Frenchman's Creek is a recreational waterway off Boca Ciega i

Bay. Eckerd College (boat dock), Maximo Park (fishing, boat |

launch), and a private marina are on the creek. Because such !

recreational waters have potential for transmitting disease
from pathogenic organisms, this creek's water quality should
be monitored. The Public Health Department monitors water in
heavily populated areas, i.e., public beaches, but French- i

1988 Supplement

-19-

Program Issue

man's Creek, a relatively small inlet, is not Included. This
study is to determine the quality of water in Frenchman's
Creek. Samples are taken and analyzed for the presence of
Salmonella and Shigella , and for numbers of fecal and
non-fecal coliforms. Results are compared with guidelines
for recreational waters (200 fecal coliforms/ 1 00 ml).

10:15AM BREAK

10:30AM BIO-17 Physiological Studies of Microbes from Lesloned Fish
Occurring In the St. Johns River. V. Alberts, D. McGarey, T. Beatty,
D. Llm, and D. Te Strake. Department of Biology, University of South
Florida, 4202 East Fowler Ave . , Tampa 33620. Studies were performed
looking at the physiological aspects of fungi and bacteria Isolated
from fish suffering from Ulcerative Disease Syndrome (UDS). The fish,
all taken from the St. Johns River system, included menhaden,
weakfish, and gizzard shad, among others. Fungi (Class: Oomycetes)

were examined for the presence of proteolytic and hemolytic enzymes,
and both zones of growth and zones of lysis were measured to determine
enzyme activity. Growth of both bacteria and fungi was studied at
various temperatures and salinity ranges, with the results indicating
that each organism has its own optimal conditions for growth.

10; 45AM BIO-18 Growth of (Centropomus undecimal is) Early-Life Stages in Sea-
water, Reduced-Salinity and Near-Freshwater Conditions. C.L. NEIDIG, R.E. EDWARDS,
J.M. SPRINKEL and W.S. HEIDELBAUGH, Mote Marine Laboratory, 1600 City Island Park,
Sarasota, FL 34236. In order to determine if salinity directly affects growth of
snook early-life stages, juveniles were reared in salinities of 1, 7, 15, 22 and 35
ppt. No statistically significant differences in growth were detected over the
period from 119-245 days after hatching (DAH). Early juveniles (37-73 DAH) were
also reared in 1, 7, 15, 22 and 35 ppt. After 35 days, the fish in 15 and 35 ppt
were significantly larger than those in 1 ppt, but no other differences were
present. Postlarvae (4-36 DAH) reared in 20 and 35 ppt, showed no significant
differences in mean size. These results suggest early-juvenile snook utilization
of low-salinity habitat may not be due to physiological/energetic factors but
instead may reflect ecological relationships. These results also clearly demon-
strate that snook early-life stages can be cultured in a wide range of salinities.

11:00AM BIO-19 Red Tide Toxicity to Snook at Different Life Stages, K.R. HARDMAN
and R.H. PIERCE, Mote Marine Laboratory, 1600 City Island Park, Sarasota, FL
34236. Three different life stages of the common snook, Centropomus undecimal is.
were exposed to toxins of varying concentrations of lysed Ptvchodiscus brevis
cells. Prolarvae, 42 days after hatch (DAH) and 97 DAH, were exposed to toxins of
approximate P. brevis concentrations ranging from 2.5 x 10^ cells/liter to 5.0 x
10 c/1. Within 24 hrs all exposed prolarvae were either moribund or dead; 42 DAH
exposed to 1.0 x 10° c/1 and 5.0 x 10° c/1 were dead; 97 DAH exposed to 5.0 x 10°
c/1 were dead. An estimated LC50 at T = 24 hrs could not be calculated for the
prolarvae due to 100% mortality of all treated. However, it is less than 2 5 x 10^
c/1. The estimated LC50’s at T = 24 hrs for the 42 DAH and 97 DAH are 6.’l x 10^
c/1 and 2.5 x 10® c/1, respectively. These results suggest that post-embryonic
snook are very sensitive to P. breyjs toxins. Thus, a red tide bloom during the
snook spawning season, June-August, could have a drastic impact on the future
population. Supported by FL Department of Natural Resources.

Florida Scientist

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Volume ^

11:15AM BIO-20

Kinetic Analysis of Cadmium Ion Inhibition of Cytoplasmic Malate
Dehydrogenase from the Starfish Luidia clathrata. KENT EDWARDS, Dept, of
Biology, Univ. of South Florida, Tampa 33620, Malate dehydrogenase was
purified by ammonium sulfate fractionation, DEAE cellulose ion exchange
chromatography, affinity chromatography on blue sepharose, and DEAE sepha-
dex ion exchange chromatography. Four percent of the original activity
was recovered with an 11-fold purification and an average specific activity
of 75 umoles/min/mg protein. Disc electrophoresis of the purified enzyme
showed one major band of activity. Kinetic analysis revealed non-competitive
inhibition between Cd-H- and the substrate oxaloacetate (OAA) , Kapp = 0.14
MM OAA. The inhibitory effect of Cd-H- is diminished in a concentration-
dependent manner by 2-mercaptoethanol . Complete reversal of inhibition
occurred with 1.54 MM 2-mercaptoethanol. Peak activity occurred in assays
at pH 8.5. Complete loss of activity occurred after 2 min at 50 C.

FRIDAY 11:30AM PH 220

BUSINESS MEETING: Biological Sciences

THOMAS CRISMAN, University of Florida, presiding

FRIDAY 1:30PM DOME ROOM, PLANT HALL

PLENARY SESSION I: Florida Academy of Sciences

LESLIE SUE LIEBERMAN, University of Florida, presiding

FRIDAY 3:00PM PH 220

SESSION C: Florida Freshwater Ecology and Wetlands of the St. Johns
River

J. R. BEAVER, University of Florida, presiding

3:00PM BIO-21 The use of citizen-based Secchi disk monitoring
programs for assessing the impact of non— point nutrient sources on
lakes. J.K. JONES AND T.L. CRISMAN, Dept. Env. Engr. Sci., U.F.,
Gainesville, FL, 32611. Secchi disk programs provide an inexpensive
alternative for measuring the impact of non-point source nutrient
inputs on lakes. In a recent Secchi disk survey at Lake Weir, FL,
local residents monitored 31 stations weekly for an entire year.
Statistical analyses of the results identified groups of stations
within the lake having significantly lower water clarity. Decreased
water clarity was closely correlated with shoreline population, but
not with citrus acreage or other land use practices. These results
suggest that septic input bears a strong impact on Lake Weir's
trophic state. Secchi disk programs are easy to organize, and are a
good way to involve the public in lake management.

1988 Supplement

-21-

Program Issue

3:15PM BIO“22 Trophic status and fish populations in five low~pH
lakes in northern Florida. K.F. ROMIE, graduate student. Dept, of
Fisheries and Aquaculture, Univ. of Fla., Gainesville, 32606. The
acidity of rainfall in the eastern United States is increasing due to
increased nitrate and sulfate emissions. One consequence of acid
precipitation is the acidification of lakes of low buffering capacity
and the possible decline of fish populations. Little is known of the
effects of increased lake acidity on fish populations in acid
sensitive Florida lakes. Northern Florida has a number of
historically low pH lakes (<5.0 pH), Five such lakes are investigated
in this study. Comparisons are made between sportfish abundance
(numbers/ha) and biomass (kg/ha) , trophic state, and pH, using data
from other studies providing similar types of data across a range of
pHs and trophic states.

3:30PM BIO“23 Lake Parkers Assessing the impact of phosphate mines and
urbanization on lake trophic status. T.J. Whitmore, Fla. State Museum, Univ.
of Fla., Gainesville, FL 32611. Lake Parker, located near the city of
Lakeland in Polk Co. , FL, has been affected in recent decades by urbanization
and phosphate mining on its shores. Phosphorus-based trophic state index
(TSIP) values were Inferred from fossil diatom assemblages in a sediment core
with a predictive model that utilizes a new diatom/trophic index. The
inferences reveal a recent trend of lake eutrophication. This conclusion is
supported by historical accumulation rates for phosphorus and organic matter.
Historical pH Inferences from a dlatom/pH predictive model indicate that the
lake has become increasingly alkaline. Calcium accumulation rates suggest that
this increase In pH was due to an influx of hydroxyl ions from human activities
(e.g. road construction, agriculture, etc.), and the dissolution of limestone
spoil in strip mining areas,

3:45PM BIO“24 Downward leakage from Florida lakes: the lake's losses are the
aquifers* gains. E. S. DEEVEY , Florida State Museum, University of Florida,

Gainesville 32611. Seepage outflow, the sole nonevapor ative loss of water
from seepage lakes, is also the major outflow from drainage lakes in porous
terrain. Hydrologiets know this very well, but their models of groundwater flow
yield no estimates of solute exchange between lakes and aquifers. Limnologists '
near-total Ignorance of groundwater invalidates many "hydrologic models* of
eutrophication and acidlf icatlon. We have used USGS stage data to estimate
downward leakage of water from 20 Florida lakes, 18 of which leak between 12 and
20 inches per year. In this paper we test our methods by applying them to Lake
Conway, where Fellows and Brezonik calculated leakage from discrepancies in an
otherwise complete water budget. These measurements draw hydrologists' attention
to the lens of accumulated lake Bediments, which gathers many solutes from an
underground watershed and focuses some of them downward toward deeper-lying
aquifers.

4:00PM BIO-25 Total Phosphorus Concentrations and Fish Standing
Crops in Streams. M. V. HOYER AND D. E. CANFIELD, JR., Dept, of
Fisheries and Aquaculture, University of Florida, Gainesville, FL
32606. Models for the prediction of total and harvestable fish
standing crops were developed using data from streams in Florida and
Vermont, Statistical analyses indicated that total (r = 0.88) and
harvestable (r = 0.82) fish standing crops were strongly related to
stream total phosphorus concentrations. The 90% confidence limits for
the relationships between total phosphorus concentrations and total
and harvestable fish standing crops were plus and minus 25% and 50% of
the predicted values, respectively. This implies that phosphorus is
the element controlling fish standing crops in a broad range of
streams, but that factors other than phosphorus strongly influence
fish standing crops in streams with similar phosphorus concentrations.

Florida Scientist

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Volume

4; 15PM BREAK

4:30PM BIO-26 Environmental impact of bulkheads in a southv;est Florida
residential waterway system. MORRISON, DOUGLAS E. Environmental Resources
Division, City of Cape Coral, PO Box 150027, Cape Coral, FL 33915. j

The Cape Coral waterway system consists of over 650 km of estuarine and freshwater |
man-made canals and lakes. Presently, the City requires bulkheads (seawalls) along '
waterfront property, with no provision for restoration of the littoral zone and
associated emergent and submerged vegetation. The impact of bulkhead construction
on recreationally important fishes, wading birds, and submerged vegetation was i

investigated by comparing sites with bulkheads to sites without bulkheads.

Estuarine and freshwater fishes were twice as abundant at sites without bulkheads
than at sites with bulkheads. Wading birds were also significantly more abundant
along non-bulkhead shoreline than along bulkhead shoreline. Bulkhead construction
destroys inportant habitat for these organisms. Bulkhead construction, even with j
turbidity screens present, caused an 80% reduction in benthic macrophyte biomass.
Environmental management decisions resulting from this study are discussed. j

of the Mate Recognition Glycoprotein from Brachionus
£licgtilis (Rotifera). M.A. Nacionales and T.W. Snell, Division of Science. Univ-
ersity of Tampa, Tampa. FL 33606. The probability of males copulating with females
coated with the lectins Concanavalin A and Lens culinaris was significantly lower
than control females. Six other lectins tested had no effect on male copulation.
The mate recognition glycoprotein (MRG) was purified using affinity chromatography.
Of the total protein applied to a Con A-agarose column, about 1% was recovered and
assumed to contain the MRG. We were unable to transfer active MRG to glass
sephadex amberlite or latex beads, or heat-killed females. A negative bioassay
was developed where the loss of MRG from females was followed. Females lost their
mating activity when treated with 10 mM CHAPS detergent
HP! Washing females with 100 mM phosphate butter, (pH 8.0), 100 mM Trls

HCl buffer, (pH 9.5) or 2 M NaCl did not reduce their ability to stimulate male
ating activity. SDS-PAGE identified three proteins, 47, 49, and 62 Kd in size
that disappeared with the loss of mating activity.

5:00PM BIO-28 Wetlands PI ant Communities of the Floodplain of the
St. Johns River. PALMER D. KINSER , EDGAR F. LOWE, JOHN HENDRICKSON,

AND GREENVILLE B. HALL, St. Johns R ive r Wa te r Managemen t District, POB
1429, Palatka, Florida 32078. A diversity of distinctive wetland
plant ccsnmunities are found in the St. Johns River floodplain from its
origin south of Blue Cypress Lake in Indian River County to the river
mouth at the Atlantic Ocean in Duval county . A classification of these
communities was developed in order to provide a structure for mapping
and detailed community analysis. The classification system is described,
the overall distribution of community types discussed, and the major
variants and species components documented.

6:15PM BIO-29 Factors Affecting the Spatial Distribution of Wetland Macrophytes
within the Floodplain Marsh of the St Johns River. JOHN C. HENDRICKSON,

GREENVILLE B . HALL , PALMER D . KINSER and EDGAR F . LOWE , St . Johns River Water
Management District, POB 1429, Palatka 32078. The SJRWMD has conducted vegetation
surveys in order to determine the factors controlling the distribution of wetland
plant species and communities, to detect temporal changes, and to provide an
analytic basis for prediction of the effects of environmental changes. Preliminary
results indicate the hydrologic fidelity of certain species, hence their value as
wetland indicators, and reveal typical plant associations. A spatially reduced
data set shows strong relationships between species distributions and hydrology,
while a spatially large and environmentally diverse data set suggests the presence
of a complex gradient, possibly including soils, fire, disturbance, salinity and
hydrology .

1988 Supplement

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Program Issue

5; 30PM BIO-30 Temporal Changes in the Vegetation of the Upper St. Johns River
in Response to Hydroperiod Alteration. GREENVILLE B. HALL and EDGAR F. LOWE, St.
Johns River Water Management District, POB 1429, Palatka 32078. The hydroperiod'
of the floodplain marshes of the upper St. Johns River has declined due to
significantly lower rainfall (since 1960), and anthropogenic alteration of flood-
plain drainage and reduction of floodplain acreage. This was probably the primary
cause of the alteration of wetland plant communities. To quantify this effect, we
used a Geographical Information System (GIS) to process and analyze vegetation’
covers of selected floodplain areas. Vegetation cover types were delineated on
the earliest (1943 or 1951) and latest (1980 or 1986) aerial photography. ‘In areas
where annual stages had declined, the areal coverage of woody species (primarily
Sal ix carol iniana) increased thereby diminishing the coverage of herbaceous
communities.

FRIDAY 6:30PM RIVERSIDE, STUDENT UNION BUILDING
SOCIAL

FRIDAY 7:30PM FLETCHER LOUNGE
BANQUET AND PLENARY SESSION II
FLORIDA ACADEMY OF SCIENCES

; FRIDAY 3:00PM PH 312
SESSION D: Marine and Estuarine Benthos
||K. MAHADEVAN, Mote Marine Laboratory, presiding

3:00PM BIO-31 Ophiuroids and Hemichordates : an Allelochemic Role for 2, 4-Dibro-
i mophenol? R.H. FEMMER AND R.L. TURNER, Dept. Biol. Sci., Fla. Inst. Technol., Mel-
1 bourne 32901. Hemichordates produce brominated phenolic compounds with demonstrated
anti-bacterial properties. This study investigated these compounds for possible al-
; lelochemic roles in interactions between hemichordates and ophiuroids from similar
[ habitats. Ophiuroids (Ophiophragmus f i lograneus ) were exposed to concentrations
' of 2, 4-di bromophenol similar to those reported for tissues, mucus, burrow walls,
and fresh fecal casts of the hemichordate Saccoglossus kowalewski i . After ini-
tial, 2-min, and 3-h exposures, the ophiuroids displayed pronounced sensitivity to
the compound. Righting time and mortality increased with concentration. Only those
exposed to the lowest concentration (0.01 g/1) for 3 h recovered upon return to ambi-
ent water for 1.5 h; i.e., righting time declined to control values. Because deposit-
feeding ophiuroids and hemichordates co-occur in soft substrata, hemichordates might
j gain a competitive advantage over ophiuroids through allelochemic effects of 2, 4-di-
I bromophenol.

3:15PM BIO-32 Frequency and Distribution of Disc Regeneration in an Ophiuroid.
J.L. CURLEY AND R.L. TURNER, Dept. Biol. Sci., Fla. Inst. Technol., Melbourne 32901.
The ophiuroid Ophiophragmus f i lograneus autotomizes and regenerates its disc in
both the field and laboratory. A field survey of the frequency of regenerates in the
Indian River lagoon system and Tampa Bay was designed to evaluate the role of aquat-
ic vegetation as refugia from physical and biotic disturbances. At the seven sites
chosen for this study, all showed low frequencies of regenerates during spring and
summer, and three showed variable frequencies throughout the year. Lower frequencies
were found in dense than in sparse beds of vegetation, but animals in dense beds
were more apt to autotomize during sampling and processing. The data cannot be at-
tributed to disturbance by foraging stingrays but are correlated with the passage of
weather fronts through the region. Based on the occurrence of regenerates in beds
of different density, vegetation seems to protect the ophiuroids from physical dis-
turbance by summer and autumn storms.

Florida Scientist

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Volume ^

3:30PM BIO-33 Laboratory feeding rates in the green sea urchin
Lvtechinus varigatus . JEREMY MONTAGUE, KIM AMBRISCO AND DAWN VASSIL, '
Division of Biological and Biomedical Sciences, Barry University,

Miami Shores, FL 33161. We fed controlled rations of lettuce to sea
urchins in 20-gallon marine aquaria during Fall 1987 and Spring 1988.
Consumption rates were clearly size-dependent in preliminary tests;
larger urchins consumed lettuce at much faster rates. We discuss
aspects of ration volume vs. ration dry weight, as well as nutri-
tional comparisons between lettuce and Thallasia turtle grass (a
natural diet item).

3:45PM BIO-34 Behavioral responses to tagging in the green sea
urchin Lytechinus varigatus . JEREMY MONTAGUE AND WILLIAM COLLAZO,
Division of Biological and Biomedical Sciences, Barry University,

Miami Shores, FL 33161. We collected and tagged a number of sea
urchins from a shallow, sub-tidal seagrass meadow in the Bear Cut
channel (Biscayne Bay) during Summer 1987. The tagged urchins were
kept for field observation in wire cages (diameter = 30 cm) over
several days. We first tried to girdle the urchins with plastic-
coated wire, and with string. The majority of urchins in these
samples removed the girdles within 24 hours. We later experimented j

with plastic mesh (mesh size = 1 cm) which we wrapped around the
animals; the larger urchins removed these within 24 hours. We j

discuss the general unsuitability of these tagging methods for mark-
recapture census, as well as possible adaptive aspects of the
observed behavioral responses. ;

4:00PM BREAK

4:15PM BIO-35 Form and Function of the Tentacular Crown of a Filter-Feeding Poly-
chaete. R.L. THOMS AND R. L. TURNER, Dept. Biol. Sci., Fla. Inst. Technol., Melbourne |
32901 . A hydromechanical approach to filter feeding is necessary to understand the !j
particle-capture mechanisms of small animals that feed at low Reynolds numbers. Da- |
ta on the individual filtering elements and the velocity of the feeding current in I
Phragmatopoma lapidosa were obtained by SEM and light microscopy. Particle cap- I
ture was recorded and observed on videotape. Tufts of long lateral cilia occur in :
triads along each side of a tentacle. Tufts are 1. 5-5.0 pm diameter, and triads |

are 15-37 pm apart. Particles pass between the triads and are transported down a J
continuous frontal field of short cilia toward the mouth. The abfrontal surface is I

free of cilia. Velocities of feeding currents were measured at 0-96 pm/ s^^ Using |
the maximal recorded velocity, the Reynolds number was computed to be 10 . Be- |

cause many of the particles retained by the filter are smaller than the pore size,

capture mechanisms are not limited to mechanical sieving in lapidosa .

4:30PM BIO-36 Short-Term Dynamics of Estuarine Polychaetes, G. L. RAY and R. J.
LIVINGSTON, The Center for Aquatic Research and Resource Management, Florida State
University, Tallahassee, Florida. Many species of estuarine polychaetes have been
shown to have generation times measured in weeks. Sampling regimes monitoring these
populations must be on the same time scale to adequately assess fluctuations in
abundance. In this report the short-term dynamics of the dominant species of poly-
chaetous annelides from two oligohaline sites and a polyhaline site in Apalachicola
Bay for a period of two years will be described. Population fluctuations of Medi-
omastus ambiseta , Streb 1 ospio benedict i , Hobsonia florida, Apopr i onospio pygmaea ,
Brania wellfleetensis, Aricidea fragilis, and five other species will be described.
The implications of these results to life history characterizations will be
discussed .

1988 Supplement

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Program Issue

4:45PM BIO-37 Distribution of Common Estuarine Benthic Invertebrates in Northeast
Florida. A. Q. WHITE, Biology and Marine Science, Jacksonville University,
Jacksonville, Florida 32211, Northeast Florida shows a predictable distribution of
estuarine benthic invertebrates according to salinity, substrate and seasonal temp-
erature. Faunal composition is typically dominated by polychaetes with a wide di-
versity of other phyla represented. In disturbed sediments, high concentrations of
the Bivalve Mulinia lateral i s have been found. Seasonal shifts show highest divers-
ity during late winter/early spring with lowest diversity during the summer months.

5; 00PM BIO-38 A Preliminary Study of the Host-PArasite Relationships of an
Epicaridean Isopod Parasite and its Mysid Shrimp Host, Mysidopsis bahia. BETH A.
KRUEGER AND W. WAYNE PRICE, Department of Biology, University of Tampa, Tampa, FL.
33606. A Tampa Bay population of Mysidopsis bahia was examined for epicaridean
isopod parasites from September 1986 to September 1987. This mysid, an important
bioassay model, was infested with an isopod belonging to the family Dajidae and is
believed to be Prodajus bigelowiensis Schultz and Allen, 1982. Three developmental
stages of the isopod-cryptoniscus, immature, and adult-were found on mature female
mysids. The cryptoniscus, the third larval stage, attaches to the mysid and enters
the marsupium where it matures to a male or female. The mature female, with the
smaller male attached to her pleon, remains in the marsupium. Release of the first
larval stage, the epicaridium, from the female isopod was observed in the laboratory
The epicaridium probably attaches to a suitable copepod intermediate host. Mysids
were infested with Isopods during all months except April-June. Prevalences were
highest in the autumn when they averaged 32%.

FRIDAY 6; 30PM RIVERSIDE, STUDENT UNION BUILDING
SOCIAL

FRIDAY 7; 30PM FLETCHER LOUNGE
BANQUET AND PLENARY SESSION II
FLORIDA ACADEMY OF SCIENCES

FRIDAY 3:00PM PH 215
SESSION E: Vertebrate Ecology

J. N. LAYNE, Archbold Biological Station, presiding

3:00PM BIO-39

Imprinting in a Predatory Species, the Florida Burrowing
(Speotyto cunicularia floridiana Ridgway). Angela Simon and
Armando Simon. 4453 Salvia Dr., Orlando Flo. 32809-3151.

It was noted that the numerous imprinting studies have traditio-
nally employed nidicolous rather than raptor species as subjects.
The present study used the Florida Burrowing Owl, which were
hand-fed by the experimenters and later tested for imprinting,
as evidenced by following-response and approach-response beha-
viors. Following-response behavior never occurred, while approach-
behavior did occur, only to disappear with the onset of flight
at a later date. There was a consistent lack of threat display to
humans although the presentation of other animals evoked threat
displays .

Florida Scientist

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Volume 51.

3:15PM BIO-40 Home Range of Bobcats in South-central Florida. D.A. WASSMER,
D.D. GUENTHER, AND J.N. LAYNE, Archbold Biological Station, Lake Placid 33852.
Movements of 12 adult bobcats (Fells rufus) on the Archbold Biological Station and
adjoining lands in Highlands County were studied by radiotelemetry during
1979-1981. Mean overall home ranges of 5 males and 7 females were 25.5 and 1A.5
km^ , respectively. Males tended to use their home ranges less intensively and to
include relatively more man-modified habitats than females. Females with
non-mobile young reduced the time spent at the periphery of their ranges. Home
ranges of adjacent adults of the same sex overlapped little or not at all, whereas
male and female home ranges overlapped broadly. Death or disappearance of a
resident resulted in major shifts of its neighbors of the same sex. Male home
ranges in this study were smaller than those previously reported from north-
central Florida.

3; 30PM BIO-41 Breeding Season and Litter Size of Flying Squirrels in South-
central Florida. M.A.V. RAYMOND AND J.N. LAYNE, Archbold Biological Station,
Lake Placid 33852. Based on estimated ages of 93 litters of flying squirrels
(Glaucomys volans) found in nest boxes on the Archbold Biological Station from
July 1979 through May 1984, estimated parturition dates ranged from the third week
of August through the second week of January, with major peaks in August - early
September and late September - early November and a minor peak in mid-December.
Mean size of all litters was 3.0 (1-6). Previous studies have suggested that the
breeding season of this species shifts from spring-fall in the north to late
summer-winter in the south and that mean litter size declines with decreasing
latitude. The seasonal breeding pattern of the southern Florida population agrees
with the prediction, but mean litter size in this population was higher than
values reported from some northern localities.

3:45PM BIO-42 Insight into Manatee, Trichechus manatus , Biology and
Management Provided by Winter Aerial Surveys in Florida. J. E. REYNOLDS AND J.

R. WILCDX. Eckerd College, St. Petersburg, 33733, and Environmental Affairs,
Florida Power & Light Co., Juno Beach, 33408. The predictability of winter
aggregations of manatees facilitates long-term studies, including aerial surveys
of the large groups found near five Florida Power & Light Company (FPL) plants.
These surveys, conducted each winter since 1977, provide insight into aspects of
manatee biology such as: critical habitat, areas where human activities could
cause harm, percentages of calves, behavioral response to cold, and seasonal
distribution. Very cold weather usually induces highest numbers of manatees to
gather in the warm water provided by the FPL plants. Several surveys have found
over 575 manatees at the five FPL plants. More than 225 animals have been
sighted at three of the plants. Due to their abundance and accessibility,
manatees using warm water refugia should be monitored in terms of both their
biology and potentially harmful human activities.

4:00PM BREAK

4:15PM BIO-43 Use of Scar Patterns to Identify Manatees, Trichechus
manatus , in Tampa Bay. R. WILHELAI, S. SMITH, AND J.E. REYNOLDS, Marine Science
Department, Eckerd College, St. Petersburg 33733. Manatees were observed at
two locations in Tampa Bay during winter 1987/88, and distinctly scarred
individuals were photographed and included in a catalog of recognizable

manatees. The two study areas were located at the Tanpa Electric Company's Big
Bend power plant and Florida Power Corporation's Bartow plant. Each plant
provides a source of warm water in which manatees seek refuge during cold winter
weather. Two dozen individual manatees have been identified and their
photographs cataloged. Six of the animals identified in winter 1987/88 were
also identifed in Tanpa Bay during a study conducted in winter 1983/84. Our
study, and similar ones throughout Florida, provide behavioral and life history
information regarding manatees, as well as insight into the extent to which
individual manatees from certain locations mix with animals elsewhere in the
state.

1988 Supplement

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Program Issue

4:30PM BIO-44 Population Biology of the Striped Newt, Notophthalmus
perstriatus. C. KENNETH DODD, JR. AND BERT G. CHAREST, ^^aff^har Ecology
Research center, U.S. Fish and Wildlife Service, Gainesville. Since January
1985, we have monitored a population of striped newts on the Ordway/Swisher
Preserve in Putnam County using drift fence capture techniques. A total of 1871
newts (1331 first captures; 540 recaptures) have been marked, measured, and
weighed as they entered and left a 0.16 ha temporary pond in a sandhi 1 1 s-xeric
live oak hammock ecotone. Movements occurred primarily from December through
June and were associated with > 10mm rainfall. Newts emigrated from the pond
toward the sandhills and a small Panicum meadow rather than the hammock but
immigrated in proportion to adjacent habitat. The sex ratio was nearly 1:1 with
females slightly larger than males (SVL, weight). Tail breaks or damage occurred
in < 1.0% of all animals. No successful reproduction occurred in 1985 or 1986,
but a small number metamorphosed in 1987.

4:45PM BIO- 4 5 Nesting of the Aquatic Salainander Amphiuma means. M. P. HAYES AND
P. N. LAHANAS, Department of Biology, P.O. Box 249118, University of Miami, Coral
Gables 33124-9118. We carpare the third A. means nest described to described nests
among amphiumid salamanders. In June 1986, a female A. means and eggs with well-
developed embryos were found in a small cavity in loose soil along a thickly
vegetated canal bank. Located above water, the nest cavity had access to water
through a crayfish burrow. Textured surfaces of eggs, their large capsular-fluid
spaces, and their aggregation by the female can either facilitate water gain or
limit water loss. These features and the moist, terrestrial microhabitat support
the hypothesis that oviposition is terrestrial. Yet, larvae hatching terrestrially
move with difficulty, suggesting that flooding is necessary for larvae to leave the
nest. Ihis agrees with the fact that all described nest sites were locations
subsequently flooded. Collectively, the data suggest that successful nesting
requires a seasonally fluctuating water environment, an idea that urgently needs
to be tested because of its innportant management inplications.

FRIDAY 6:30PM RIVERSIDE, STUDENT UNION BUILDING
SOCIAL

FRIDAY 7:30PM FLETCHER LOUNGE
BANQUET AND PLENARY SESSION II
FLORIDA ACADEMY OF SCIENCES

SATURDAY 8:30AM PH 220

SESSION F: Near-Shore Marine Biology and Ecology
J. L. SIMON, University of South Florida, presiding

8:30AM BIO-46 Estimates of Age and Growth in Juvenile Nurse Sharks
(Gingly mo stoma cirratum) Using Visual and Electron Microprobe Assess-
ment of Vertebral Centra. JEFFREY C. CARRIER AND RICHARD RADTKE,

Dept, of Biology, Albion College, Albion, MI 49224 and Hawaii Inst,
of Geophysics, 2525 Correa Road, Honolulu, HI 96822. Vertebral sam-
ples from nurse sharks up to 200cra (TL) were visually evaluated for
opaque growth bands, and electron microprobe analysis was undertaken
in several samples to verify annual periodicity of band formation.
Growth rate estimates for age classes were compared from recapture
measurements and extrapolation from age/length relationships. Both
techniques support a rate of approximately 9.9 ^ 4.7 cm/yr (N=21)
and 2.8 + 0.9 kg/yr (N=17).

Florida Scientist

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Volume 51. r

8:45AM BIO-47 Tooth Replacement in the Nurse Shark, Gingl vmostoma cirratum.
PATRICIA BLUM, PERRY W. GILBERT and CARL A. LUER, Mote Marine Laboratory, 1600 City
Island Park, Sarasota, FL 34236. It is well known that jaws of sharks possess
several rows of teeth, the outer row being continually replaced by new teeth as
older ones become worn or broken. No long-term investigations have been performed
with any shark species, however, to determine rates at which teeth move forward
during the replacement process. Three juvenile nurse sharks were examined weekly t
for three years to document rates at which teeth, marked by clipping the cusps of i
newly erupted teeth, moved from the innermost to the outermost row and were
eventually shed. Following the shedding of marked teeth, additional sets of newly
erupted teeth were clipped and monitored throughout the study period. Rates of
tooth replacement varied during the year depending upon water temperature. Fastest
rates occurred in summer months (water temperature 27-29°C) when a row was shed
every 2-3 weeks. Winter water temperatures {19-22°C) produced the slowest rates,
ranging from 7-10 weeks per row. (Supported in part by R.C. Dorion Fund.)

9;00AM BIO-48 What the Shark’s Eye Tells the Shark’s Brain: Mapping the Visual
World of Sharks, R.E. HUETER, Mote Marine Laboratory, 1600 City Island Park,
Sarasota, FL 34236. The organization of spatial vision in sharks is poorly
understood, and so its importance in the visual ecology of sharks is virtually
unknown. By electrophysiological ly mapping the projection pattern from the visual
field onto the midbrain surface of juvenile lemon sharks (Negaprion brevirostri si .

I have found that three times more brain surface is devoted to vision inside a
horizontal band, the "visual streak," which is conjugate with the shark’s moving
visual horizon. Retinal cell topography shows a similar pattern, such that

ganglion cells and cone photoreceptors are more concentrated in the streak vs.
periphery by factors of 3:1 and 13:1, respectively. This indicates that these
sharks are adapted for concentrated vision of objects located just above the

benthic terrain.

9:15AM BIO-49 Aerial Surveys of Coastal Bottlenosed Dolphin Populations Along
the Central Florida West Coast. M.J. KEHL and J.F. GORZELANY, Mote Marine Labora-
tory, 1600 City Island Park, Sarasota, FL 34236. Marine mammal aerial survey data

from west central Florida have been collected routinely during the past three

years. Surveys were conducted from a fixed-wing aircraft at an altitude of 152
meters and covered more than 1,400 kilometers from Anna Maria Sound to Charlotte
Harbor. To date, 85 flights have produced nearly 600 confirmed sightings of
bottlenose dolphins from this area. Although only a small percentage of dolphins
were observed in the nearshore Gulf of Mexico, the majority of sightings occurred
in proximity to the numerous tidal inlets in the area. Numbers of dolphin sight-
ings typically increased through the summer and decreased in the fall and winter.
Pods comprising as many as 20 individuals have been noted; however, pod size/fre-
quency distributions reveal that nearly two-thirds of all sightings were of either
individual or pairs of animals. Population estimates were found to coincide with
previous studies in this area.

9:30AM BIO-50 Recent Strandings of Atlantic Bottlenosed Dolphins (Tursiops
truncatus) Along the Central Florida West Coast. J.F. GORZELANY and G.W. PATTON,
Mote Marine Laboratory, 1600 City Island Park, Sarasota, FL 34236. Since 1985, at
least 39 single dead strandings of Atlantic bottlenosed dolphins have occurred
along an 80 km portion of the central Florida west coast (S. Tampa Bay to N.
Charlotte Harbor). Of the stranded dolphins 59% were male; 28% were female; and
18% could not be determined. Nearly two-thirds of dolphin strandings occurred
during the first 6 months of the year; however, a well-defined stranding "season"
was not evident. Stranding locale was variable and is likely related to habitat
preferences, prevailing wind direction, and currents. Probable cause of death
could be determined from 15 individuals. Other specimens were either in a moderate
or advanced state of decomposition, providing limited information. The most common
cause of death was due to respiratory system failure/pneumonia. Other causes of
death included gastrointestinal -rel ated diseases, perinatal death, and human
activities .

1988 Supplement

-29-

Program Issue

9 •45AM BIO-51 A simulation model of marine seagrass community
responses to turbidity. 1988. J . W . CALDWELL ; CH2M Hill; 550
Fairway Dr Ste 205; Deerfield Beach, Fl 33441. C . L . MONTAGUE ; U
Florida; Dept Environmental Engineering Sciences, Gainesville, Fl
32607. A microcomputer-based feedback dynamics model was used to
simulate the effects of natural (thunderstorm) and man-made
(dredging) turbidity on a seagrass community in a clear water
marine environment. An initial decrease in seagrass biomass
caused by turbidity pulses from thunderstorms and dredging events
resulted in a 1- and a 3.5-year recovery period, respectively, to
return to pre-perturbation levels. Time of recovery was found to
be largely a function of the intensity and duration of the
turbidity event. Elevated long term turbidity resulting from
current scour of the dredge cut contributed to the increase in
time of recovery of the community from dredging events.

10:00AM BREAK

10;15AM BIO-52

Proximate Composition and Standing Crop of Postelsia palmaef ormes
(Phaeophyta) at Pigeon Point, California. J.M. LAWRENCE AND J.B, MCCLINTOCK .
Dept, of Biology, Univ. of South Florida, Tampa and Univ. of Alabama at
Birmingham. The holdfast and the stipe had higher levels of ash and lower
levels of protein, lipid, soluble and insoluble carbohydrate than the
blades. The kJ per g dry weight was greatest for the blades; the kJ per g
ash-free dry weight did not differ greatly among the components. The rela-
tive amount of energy in the components did not vary with plant size; simi-
lar amounts occurred in the stipe and blades that were greater than that in
the holdfast. The maximal density was 984 plants per sq m and the maximal
standing crop was 4,317 g wet weight (9,894 kJ) per sq m. The blades were
eaten by the echinoid Strongylocentrotus purpuratus at a higher rate than
were the stipe and holdfast. This is correlated with an indication of
phenols in the stipe and holdfast but not in the blades.

10:30AM BIO-53 The Distribution and Ecology of Zooplankton in Charlotte Harbor,
Florida. ANDREW P. SQUIRES, City of Tampa, Dept. of Sanitary Sewers, Bay Study
Group, S700 Maritime Blvd., Tampa 33605, AND T. L. HOPKINS, Dept. of Marine
Science, Univ. of South Florida, 140 7th Ave. S., St. Petersburg, 33701.
Zooplankton samples were collected monthly from August 1979 to June 1980 at three
stations from the surface waters of Charlotte Harbor. Samples for total and
organic particulate matter, phytoplankton production, and chlorophyll a were taken
coincident with zooplankton collections. The dominant species of Oi thona co Icarva.
Parvocal anus crassi rostr i s . Acartia tonsa, and Oi kop leura dioica accounted for 39*/.
of the total zooplankton numbers and 64*/. of the biomass. Distributions of nearly
all of the most prevalent holoplankton species were not statistically related to
patterns of temperature, chlorophyll, or phytoplankton production. Results
indicated that food may be available in excess supply to the zooplankton community.
Zooplankton populations were larger relative to other eastern U.S. estuaries and
predation is suggested as a likely mechanism of regulating population density.

Florida Scientist

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Volume ^

10; 45AM BIO-54 Halodule wi i qh t i i , Hupp i a mar i t inia , and the Alqa, Caulorpa
pro 1 i f er a , in Hillsborough Bay. WALTER AVERY, ROGER JOHANSSON, and ANDREW P.
SQUIRES, City of Tampa, Dept. of Sanitary Sewers, Bay Study Grouf), 2700 Maritime
Blvd., Tampa 33^05. In April 1986, Hillsborough Bay was surveyed to determine
submerged macrophyte distribution. Initially, 0.2 hectares (ha) of Halodule
wr iqht i i , O.lha of Rupp i a fnari^y,n(a and about 5ha of the alga, llaylexpa PQ! L\.t§r^i
were groundtruthed . C_^ prolifera coverage increased to 200ha by December 1986 and
remained at this figure through 1987. May 1987 R^ mar i Lima coverage was

approximately 2ha. H^ wr iqht i i coverage increased to an estimated 0.3ha in

October 1987. In June and July 1987, eight areas were selected for test plantings
with H^ wr iqht 1 i . Seven intertidal transects in Hillsborough Bay were planted
with "sod" pieces and one 10x20m area was planted with bare root units. Initial
survival rates were determined in October 1987. Nearly 85*/. of the sods were
persisting and ^0*/. of these showed areal expansion. Approximately 6^7. of the bare
root units were persisting and 50*/. of these showed areal expansion.

11:00AM BIO-55 Sediment and Water Column Interactions in Hillsborough Bay, a
Highly Impacted Sub-Division of Tampa Bay. ROGER JOHANSSON AND ANDREW P. SQUIRES,
City of Tampa, Dept. of Sanitary Sewers, Bay Study Group, 2700 Maritime Blvd.,
Tampa 33605. Sediment oxygen demand and nutrient exchange rates were measured from
chambers deployed hi si tu in Hillsborough Bay during 1986. Summer and winter rates
were obtained from two dominant sediment types found in the bay, fine quartz sand
and high organic content mud. The highest oxygen demand was found during the
summer in the muddy sediment. Releases of inorganic phosphate and ammonia were
also highest during the summer and appeared more dependent on temperature than
sediment type. Relatively low N:P ratios of inorganic nutrient fluxes from the
sediments during the summer may reflect bacterial denitrification in the sediments
and a loss of available nitrogen from the system. Nutrient inputs from the
sediment to the water column, expressed as ammonia and phosphate releases, may
supply 3^7 of the N and 1^0*/. of the P needed to sustain the annual phytoplankton
production of Hillsborough Bay.

FAS BIO POSTER Drift Macroalgae of Hillsborough Bay; GCNF PINSON, ROCCR
JOHANSSON, ANDY SQUIRES, WALT AVERY: City of Tampa^ Dept . of Sanitary Sewers,

Bay Study Group, 2700 Maritime Blvd., Tampa, FL. 33605

SATURDAY 9:00AM PH 215

SESSION G: Plant Biology and Ecology

P. M. DOORIS, HDR Engineering, presiding

9:00AM BIO-56 Annuteliga Hammock, Hernando County: An Historical Ecological
Overview. B. R. Wharton, P. M. Dooris, HDR Engineering, Tampa and G. M.

Dooris, Saint Leo College, Saint Leo. Annuteliga Hammock, originally one of
Florida's largest upland temperate hammocks, is examined from the historical-
ecological perspective. The contemporary ecologlc setting is described. Then,
using original government land survey data and other historical sources, a pre-
settlement oak-bay-sweetgum-magnolia-hickory forest cover is reconstructed in
terms of floristlcs, species composition, frequency, density, and importance value.
The roles of early land use and fire in secondary forest succession are discussed.
Post-settlement land use impacts (limerock mining, agriculture, and fire sup-
pression), which have primarily affected the hammock's geographic extent, are
examined. Annuteliga Hammock is compared to other hammocks in North Florida,
eg. San Felasco and those investigated by Monk.

1988 Supplement

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Program Issue

9:15AM BIO-57 The Clematis virginiana complex in Florida. F.B. ESSIG.
Department of Biology, University of South Florida, Tampa 33620. Clematis
virginiana L is a widespread, successful, almost weedy species occuring throughout
much of the eastern United States. Clematis catesbyana Pursh is a closely related
species recognized by some authors and not by certain others. A distinct geo-
graphical distirbution, temporal reproductive isolation, and a consistent set of
morphological differences argue that the two species are in fact distinct from one
another. In Florida, the presence of Clematis virginiana appears to be due to
recent human introduction, while C. catesbyana occurs in a number of distinctive
natural populations.

9:30AM BIO-58 An Environmental Solution to a Problem Created by Engineering
Practices. H. A. MILLER, Dept, of Biological Sciences, Univ. of Central Florida,
Orlando 32816. Powerful earth-moving machinery today makes possible rapid
changes in the landscape to achieve terrestrial configurations sought by
engineers and builders. The resulting wastelands have been a source of alarm for
conservationists and biologists in Florida for many years. State environmental
laws now allow modification of the landscape so long as it is in the public
interest, or prevent changes which are deemed contrary to public interest.
Creation of a landscape which approaches restoration of an ecosystem is

especially important for phosphate mines. Because of the critical role of

watershed wetlands to Florida's aquatic resources, a system was devised for
perching a surface water table over phosphate mined land so that riverine

habitats could be established with minimal long-term impact on the watershed.

Although the project is relatively new, an accelerated secondary succession has
been observed in the restoration site.

9:45AM BIO-59

Phenotypic Plasticity of Hygrophila polysperma (Acanthaceae) .
P.S. BOTTS, B.W. WITZ, C.W. KOVACH, AND J.M. LAWRENCE. Dept, of Biology,
Univ. of South Florida, Tampa 33620. Hygrophila polysperma growing sub-
merged were planted in prepared soil and grown under controlled conditions
both in water and in air. The shoots grovm in air in water-saturated soil
differed from those grown in water in morphology (shorter, broader leaves;
shorter internodes; relatively greater development of the roots; less
development of the leaves), production (greater for all plant components),
and proximate composition (higher levels of soluble and structural carbo-
hydrates and lower level of protein) . These changes are consistent with
those expected for a change from a water to an air habitat.

10:00AM BREAK

10:15AM BIO-60

Phenotypic Plasticity and Standing Crop in Acaena magellanica
(Rosaceae) on Kerguelen (South Indian Ocean). J.M. LAWRENCE AND J.B.
MCCLINTOCK. Dept, of Biology, Univ. of South Florida, Tampa and Univ. of
Alabama at Birmingham. The herbaceous perennial A. magellanica currently
exists in the virtual absence of competition on the Peninsula Courbet.
Populations in 1982 varied in leaf biomass from 192 to 2,373 g wet wt
(1,105 to 10,023 kj) per sq m. Inf lorescenses were not produced at either
of these extremes of leaf production. In populations with intermediate
levels of leaf biomass (597 and 640 g wet wt , 3,185 and 2,664 kJ per sq m) ,
inflorescent biomass was 104 and 273 g wet wt (385 and 1,127 kj) per sq m.
The relative allocation to reproduction is not constant in A. magellanica
and shows great phenotypic plasticity that may be adaptive.

i

Florida Scientist

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Volume ^

10:30AM BIO-61 Nonprotein Imlno Acids of Inga. TIMOTHY C. MORTON AND JOHN T.
ROMEO, Dept, of Biology, Univ. of South Florida, Tampa, 33620. The chemistry of the
Mimosoid legume Inga has received little attention. This large genus of tropical
trees is potentially exploitable for food. This report details the isolation and
identification of the nonprotein imlno acids (amino acids containing a N hetero-
cyclic ring) of 5 species from Costa Rica. The chemistry of Inga spp. was found to
be similar to that of its close relative Calliandra , a plant worked on in our
laboratory for 6 years. There are many rare pipecolic acid derivatives which in-
clude the cis and trans forms of the 4-hydroxy and 5-hydroxy derivatives, all four
possible stereoisomers of the 4 , 5-dlhydroxy derivatives, trans-4-acetylamino pipe-
colic acid, and a new naturally occurring compound tentatively identified as a
3,4,5-trihydroxy pipecolic acid. Compounds were isolated from a series of ion-
exchange resins and alumina. Known compounds were identified by HPLC and co-chroma-
tography with standards. The new compound was characterized by mass spectroscopy
and NMR. The ecological and taxonomic Implications will be discussed.

10:45AM BIO-62 A Scanning Electron Microscope Study of the
Hibiscus rosa-sinensls Pollen Wall. L.M. FRITZ, C.J.
ANDRESS, J.B. DATTILO, P. GORE, L.M. HELLYAR, P. HERNANDEZ,
B.L. HUGHLETT, M.L. KUB, C.M. LINTON, AND M. OUSTA, Eckerd
College St. Petersburg 33733. Several developmental stages
of pollen from the tropical ornamental shrub. Hibiscus rosa-
s inensis , are observed from the tetrad stage to the most
mature form. After the tetrad stage, the pollen rapidly
Increases in size and exine is formed from the deposition of
sporopollenin on the mlospore wall. The mature pollen is
large, polyporate, spiny, tectate, and has very thick
endexine (foot layer). Germinal pores are covered by the
tectum (roof layer) and further protected by a heavy deposit
of sporopollenin. The unbranched spines are continuous with
the endexine and lack a basal cushion of columellae.

11:00AM BIO-63 a scanning Electron Microscopy Study of Pollen
from Three Malvacean Species. C.J. ANDRESS, P. GORE, P.
HERNANDEZ, C.M. LINTON, and F.P. VANDERVEGT, Eckerd College
St. Petersburg 33733. The mallow family (Malvaceae) has
several economically important species such as cotton and
okra. About thirty-two species are indigenous to Florida.

This study is a comparison of Pollen morphology for three of
these species. Hibiscus rosa-sinensis ( rose-of-China ) ,

Malvaviscus arboreus var. mexlcanus (sleepy hibiscus), and
Urena 1 o b a t a (Caesar ' s we ed ) . The pollen of these species is
large and the exine characteristically polyporate, tectate,
and spiny. The innermost layer of the exine (endexine)
typically is two-three times thicker than the outer, orna-
mented layer (sexlne). Pore morphology is distinctive for
each of these species.

!'1988 Supplement

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Program Issue

COMPUTER SCIENCE AND MATHEMATICS

FRIDAY 9:00AM PH 312
SESSION A

LAURENE FAUSETT^ Florida Institute of Technology, presiding

9:00AM CSM-1 Fuzzy Relational Data Base Management Systems &

I Prolog. Dimitrios Loumakis. Master thesis student of computer
‘Science at Florida Institute of Technology, 150 W. University Blvd.,

I Melbourne, FL 32901-6988. After the inefficiencies and/or complexi-
ties of the Network and Hierarchical data base model became obvious,

I Codd introduced the Relational model, that soon became a standard due
to its simplicity and flexibility. The Fuzzy Relational Data Base
1 model, enables the user to interact via queries, not based on the
; standard comparison primitives (<,>,=). In this way, queries such as:
' "LIST ALL COUNTRIES WITH PLEASANT CLIMATE" can be honored. Prolog,

1 as a language, can be used to enhance the interaction capabilities
y with a relational data-base, as well as provide the means to incor-
1 porate the intelligence that a data-base should have in order to be
1 extended to a fuzzy relational data base model .

' 9:15AM CSM-2 An Interactive UNIX Based Environment For Defining
; and Querying Relational Data Bases Using a SQL-like Language.

! Michael Alexopoulos. Master thesis student of computer science at
: FL Institute of Technology, 150 W. University Blvd., Melbourne, FL
: 32901-6988. Research on Relational Data Bases has produced a number
I of languages that realize in some concrete form all or some of the
features of the abstract Relational Model. Such languages are called
Relational languages and provide facilities for defining, manipulat-
ing and controlling data in a Relational Data Base. An interactive
UNIX based environment is proposed in this paper, which will allow
its users to define and manipulate Relational Data Bases using
SQL- like commands.

9:30AM CSM-3 Temporal DataBases. Ramon A. Mata-Toledo, Dept, of
Mathematical Sciences and Computer Science, Fla. Institute of
: Technology, Melbourne, Fla 32901-6988. Codd's relational database
1 model has undergone certain amount of revision and refinement since
; its introduction in 1970. Since then, its popularity has increased
and today is the most popular of all database models. However, as
ii most conventional database it can only represent the state of the
f world at a particular time- current time. In this paper the author
addresses the issue of extending this basic model to preserve past
1 information and include the notion of time. This is the basis of
'Temporal DataBases (TRDBs). The objectives of TRDBs is to provide a
historical view of changes to relations and attributes of the
databases .

9:45AM CSM-4 Automating and Refining Software Measurements . Naim
Temsamani, Master thesis student of computer science at Florida
I Institute of Technology, 150 W. University Blvd., Melbourne, FL
32901-6988. McCabe's cyclomatic complexity and Halstead's software
science have influenced most software metrics studies. However,
these measures fail to detect aspects of complexity they claim to
confine. By modifying these metrics, an attempt is made to obtain
better measuring tools. Weighted measures are another alternative
to McCabe's and Halstead's metrics. They have the advantage of
compactness, and a wide range of fields to investigate. In this
paper, the author addresses the issue of automatic measuring tools,
experimental results are presented, and some conjectures are
hypothesized .

Florida Scientist

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Volume bX

10; 00AM BREAK

10; 15AM csM-5 Simulating a Hospital Operating Room Suite, RAVI GOPALAN
and FREDERICK B. BUONI, Operations Research Program, Florida Institute of
Technology, 150 W. University Blvd, Melbourne, FL 32901, A simulation
model of an Operating Room Suite of a regional medical center was constructed
to study the effects of scheduling procedures and turn-around- time on
utilization of the rooms. Actual data on procedure distribution and procedure
times were used in the simulation. The effect of using different percentiles
rather than the mean of the turn-around-time distribution is demonstrated

10; 30AM csM-6 A New Form For Utility Functions With Asset Level

Dependence, PAULO LOPES DA SILVA and FREDERICK B BUONI, Operations
Research Program, Florida Institute of Technology, 150 W. University Blvd,
Melbourne, FL 32901. A functional form for a utility function for decision
making under risk which is parameterized in terms of asset level position is
presented and discussed. It is shown how this function accomodates the Allais
Paradox and current concepts in behavioral decision making. The formal
axiomatic theory is also discussed

10; 45AM csM-7 Jhe Maintenance Scheduling with Fuel Constraints Problem.
TALAL M. AL-KHAMIS and FREDERICK B BUONI, Operations Research
Program, Florida Institute of Technology, 150 W. University Blvd, Melbourne,
FL 32901. The Maintenance Scheduling Problem is concerned with when and
in what sequence electrical power plant units should be taken out of service for
maintenance so as to minimize energy production cost, minimize the cost of
system unreliability, and make optimum use of available manpower and
equipment. The effect of considering fuel availability constraints upon
approaches to formulating and solving the problem will be discussed

11; 00AM CSM-8 Image Processing Applied to Observation of Sunspots.

B.J. LIPOB'SKY, Brevard Community College, Math-Science Div. , Cocoa
32922. Sunspot images have been projected in white light by the
heliostat system at Brevard Community College Observatory and
recorded on VHS format video tape. Selected video frames have been
digitized and stored for processing on an IBM-PC microcomputer. A
brief discussion of sunspot morphology will be followed by a
description of the digital image operators which are to be used for
the study of sunspot images.

FRIDAY 11; 15AM PH 312

BUSINESS MEETING; Computer Science and Mathematics
LAURENE FAUSETT, Florida Institute of Technology, presiding

FRIDAY 1;30PM DOME ROOM, PLANT HALL

PLENARY SESSION I; Florida Academy of Sciences

LESLIE SUE LIEBERMAN, University of Florida, presiding

1988 Supplement

-35-

Program Issue

EMGIHEERINg SCIENCE

SATURDAY 10:00AM PH 210
SESSION A: Symposium

"What is the impact of engineering on Florida's economy -
today and tomorrow?"

GEORGE KNECHT, President - Florida Engineering Society, presiding

SATURDAY 1:00PM PH 210
SESSION B

BETTY PREECE, Melbourne High School, presiding

1:00PM ENG-1 Electrochemical and Metallographic Determination )f Corrosion

in Epoxy-Coated Reinforcing Steel. A. Zayed and A. A. Sagues, University of South
Florida, Tampa, Florida 33620-5350. The corrosion rate of epoxy-coated reinforced
steel was studied in this investigation. Epoxy coating is increasingly used in
concrete structures as a method to protect reinforcing steel from experiencing
excessive corrosion. The coated steel suffers from normal coating imperfections
and additional coating damage during site fabrication. Corrosion may develop under
those circumstances. The mechanisms of damage initiation and propagation were
investigated by introducing a slit of controlled dimensions in the otherwise sound
coating of a reinforcing steel segment. Both straight and bent samples were used.
The corrosion of the underlying steel was determined as a function of exposure time
in sodium chloride solution using electrochemical impedance measurements.
Metallographic examination of the corroded area revealed a good correlation between
metal loss evaluated metallographically and that predicted by the integration of
the electrochemical measurements.

1:15PM ENG-2 Electrochemical Impedance Measurements of Corrosion in

Microelectronic Components. A, Dip, A. A. Sagues, J. Ammons and E. Stefanakos,
University of South Florida, Tampa, Florida 33620-5350. An electrochemical
impedance cell has been configured to conduct measurements of corrosion in circuit
metallization of microscopic dimensions. Initial tests are aimed to the
characterization of pitting corrosion, under high moisture conditions, of
interdigitated aluminum metallization deposited in a test pattern. Both
electrochemical impedance and electrochemical noise measurements are used to
determine corrosion rates in a non-destructive, highly sensitive manner. The
results are correlated with pre- and post-exposure examination of the structure by
means of Scanning Electron Microscopy.

1:30PM ENG-3 Analysis of a Two-Stroke Cycle Humphrey Pump. S.C. KRANC,
University of South Florida, Tampa, FL, 33620. The Humphrey pump consists of a
U-tube capped at one end to form a confcustion chamber. When suitable fuel air
mixture is ignited, a rocking motion is induced in the tube so that water is
discharged periodically at the open elevated end. Both two and four stroke cycle
versions have been demonstrated although the four stroke version has been more
successful. The purpose of the present work is to model the two stroke pump and
compare the performance to previous work involving the four stroke pump. The
analysis includes an examination of pumping characteristics and efficiency as well
as other performance measures.

Florida Scientist

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Volume 51.

1:45PM ENG-4 Statistical Modeling of the Movement of DNA During Gel
Electrophoresis. DAVID O' FERRELL, ERIC JENSON, AND JERALD LINSLEY, Florida Institute
of Technology, 150 W. University Blvd., Melbourne, FL 32901-6988. The movement of
DNA molecules during gel electrophoresis is modeled statistically using equations
proposed by the authors and others. While the majority of these models are purely
empirical, others are based on various mobility theories. The major independent
variable selected for modeling is the molecular size. Several of the models provide
excellent results for smaller DNA molecules (<50 kilobase pairs) when compared
against experimental data taken from the literature. Predictions for the movement of
larger DNA (>1000 kilobase pairs; up to the size of human chromosonal DNA) are made.

2:00PM ENG-5 Models of the Separation of DNA in Field Inversion Gel
Electrophoresis. ERIC JENSON, DAVID O' FERRELL, AND JERALD LINSLEY, Florida
Institute of Technology, 150 W. University Blvd., Melbourne, FL 32901-6988. DNA
molecules of greater than 50 kilobase pairs have been separated by field inversion
gel electrophoresis (FIGE). Simple mathematical models of the movement of DNA
through a dilute agarose gel during FIGE are formulated. Fundamental calculations
and scaling considerations show that a pseudo-steady-state assumption can be
invoked. Initially, a model incorporates general drag coefficients. Simplified drag
coefficient equations are proposed. A ramp equation and a sigmoidal (cosine)
equation are used in this work. Model equations are derived for FIGE with constant
switching time periods. The ramp model qualitatively confirms the separation
obtainable by field inversion gel electrophoresis.

SATURDAY 11:45PM

BUSINESS MEETING: Engineering Science

BETTY PREECE, Melbourne High School, presiding

EMYIEQNllENlMi CHEHISTEI

FRIDAY 8:00AM PH 209
SESSION A: Aquatic Ecology

JEFFREY HOLLER, South Florida Water Management District, presiding

8:00AM pv-1 Effect of Fluorescein Family Dyes on the Growth of th(
^jgscula. KEVIN B. JOHNSON AND DEAN F

MARTIN, CHEMS Center, Department of Chemistry, University of SoutI
^ 33620. Four f 1 uore s ce i n - der i va t i ve dyes (substitutec

xanthenyl benzoates : fluorescein, erythrosin, eosin Y, and rose benqal'
were examined for their (PDA). Initial rate of growth was used

^ series indicating relative effectiveness in inhibiting th€
growth L- majescul a (initial dye concentration = 10-5

was found to be: rose bengal > eosin V

- erythrosin >> fluorescein.

11988 Supplement

-•37-

Program Issue

8;15AM ENV-2 Inhibition of Growth of the Red Tide Organism
Pt vchod i scus Brev 1 s by a Green Alga, Nannochl oris sp.

H. CHRISTINE FLYNN AND DEAN F. MARTIN, CHEMS Center, Department of
Chemistry, University of South Florida, Tampa 33620. The general
purpose of this research is the development of a method of mitigating
the effects of a red tide outbreak (periodic proliferation of the
unarmored d1 nofl age! ate Pvtchodiscus brev i s 1 in Floridian coastal
waters. This would be achieved through an understanding of how
chemicals produced by certain green algae limited the growth of the
red tide organism. The presentation will describe the culturing of N.
ocul ata and the suppression of £.. brev i s growth in the mixed organism
cultures.

8‘.30AM ENV-3 Influence of Substituted Phenols on the Growth of
Hydrilla. BARBARA B. MARTIN AND DEAN F. MARTIN, CHEMS Center,
Department of Chemistry, University of South Florida, Tampa 33620.
Solutions (50 uM) of known allelopathic compounds and related model
compounds were tested for their ability to inhibit the growth of
Hvdri 1 1 a vert 1 c 1 1 1 at a (Royle). Various properties of the phenolic
acids were considered to account for the effect. Chelation appears
not to be a factor, but a negative correlation was found between the
percent inhibition of growth and the acidity of the substituted
phenol .

8:45AM ENV“4 Distribution and Persistence of the Mosquito Larvacide,
Abate, Applied to a Mangrove Forest. M.S. HENRY, R.H. PIERCE AND R.C.
BROWN, Mote Marine Laboratory, 1600 City Island Park, Sarasota, FL
34263. The mosquito larvacide, Abate, was applied by helicopter to an
estuarine mangrove ecosystem along the coast of St. James City, FL.
Under normal conditions approximately 3,200 ug/m^ of abate would
impact the ecosystem. The actual dispersion was determined using
aerial and ground level filters. It was found that approximately 85%
of the Abate applied remained on the mangrove canopy leaves, with the
remaining 15% reaching ground level. Abate persistence was determined
by monitoring canapoy leaves and simulated tidal pools over a 72 hour
time period. Abate residues were detected in rain water samples
collected at the mangrove floor (10-24 hours after application). No
Abate residues were detected in tidal waters, but residues did persist
in simulated static tidal pools for up to 72 hours.

9 I 00AM BREAK

I FRIDAY 9 115AM PH 209

SESSION B: Nutrient Load Prediction/Management Practices
I JEFFREY HOLLER^ South Florida Water Management District^ presiding

I

9:15AM ENV-5 Evaluation of Upconing Potential of the Floridan
Aquifer in Brevard County: Implications For Water Resources
Management. H.M. Al-Ruwehy, J.M. Frazee, Jr., and F.E. Dierberg.
Dept. Environmental Science and Engineering, Florida Institute of
Technology, Melbourne 32901 and St. Johns River Water Management
District, Palatka. The occurrence and potential for upconing in four
high yield irrigation wells withdrawing water from the Floridan
aquifer were evaluated hourly by chemical analyses of long-term
pumping events and analytic models. Three analytical models were
employed to calculate maximum discharge and critical rise of the salt

Florida Scientist

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Volume 51.

water interface underlying the fresh water lens. The northern site,
which possessed the shallowest salt water/fresh water interface,
exhibited the greatest potential for upconing. Analytic models
provided a guideline for water resource management, but rigid

adherence to theoretical quantitative calculations should be avoided.

9:30AM ENV-6 A QUAL-II Model of the Suwannee River. DAVID W. BLACK,
South Florida Water Management District, P.O. Box 24680, West Palm
Beach, FL 33416. Water quality data for 20 stations along the'
Suwannee River (main channel & tributaries) were collected monthly;
over a two year period. A QUAL-II mathematical stream quality model
was developed using these data. Two validation runs showed
satisfactory performance of the model. The primary accomplishment was
to produce a model that could be used to predict water quality
consequences of potential human activities. The following conclusions
were reached regarding the Suwannee River system: 1) Biological
processes (BOD consumption, photosynthesis, respiration, and alga

nutrient uptake) do not play major roles in determining water
chemistry; 2) Groundwater interactions are a significant factor

influencing water chemistry and un-gauged flows from/ to the Floridan
Aquifer complicate modelling.

10:00AM ENV-7 Lower Kissimmee River Basin Water Quality Monitoring
Network. BOYD E. GUNSALUS AND ERIC G. FLAIG, South Florida Water
Management District, P.O. Box 938, Okeechobee, FL 34972. A monitoring
network was designed and implemented in the lower Kissimmee River
basin to provide data to evaluate land use practices on surface water
quality. The objectives of this project are: 1) estimate phosphorus

(P) loads from dairy tributaries; 2) identify high eposidic P loads
and locate probable causes; 3) evaluate efficiency of best management i
practices (BMPs) for reduction of nonpoint source P loading- in the
Kissimmee basin. Monitoring efforts consist of weekly grab sample*
collection at 52 sites. Automatic samplers collect samples at 31 sites*
based on unique hydrologic conditions. Subject parameters are'
temperature, pH, Eh, conductivity, rainfall, and stage. Autosampler
samples are screened for t i me - i ntegrated P levels. Threshold samples!
are analyzed for total nutrient concentrations by SFWMD laboratories. *

10:15AM ENV-8 Evaluation of Water Quality Trends in the Taylor
Creek/Nubbin Slough Basin. GARY J. RITTER AND ERIC G. FLAIG, South ^
Florida Water Management District, P.O. Box 938, Okeechobee, FL 34972. ;
Time series total phosphorus (P) concentration data (1978 - 1987) were
analyzed for long term trends using the nonparametric Seasonal Kendall
Tau trend test, corrected for serial correlation. Statistically
significant trends (p ^ 0.05) in P data were detected at nine of
fourteen stations. Emphasis on efficient wastewater utilization,
diversion of pasture runoff, timing of pasture fertilization, and
fencing cows out of major water sources may have resulted in improved
water quality in three of nine major tributaries. There was a
cumulative positive effect on P concentrations at the basin out-fall
to Lake Okeechobee due these changes in land use practices.

10 : 45AM BREAK

FRIDAY 11:00AM PH 209

SESSION C: Environmental Potpourri/Methods

JEFFREY HOLLER, South Florida Water Management District, presiding

1988 Supplement

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Program Issue

11:00AM ENV-9 Laboratory Automation: An Implementation Plan That
Worked; And What Should You Expect It To Do For You? MARY LOU DANIEL,
South Florida Water Management District (SFWMD), P.O. Box 24680, West
Palm Beach 33416. The SFWMD laboratory has been using a Perkin-Elmer
3230 Laboratory Information Management System (LIMS/2000) computer for
over three years. Laboratory automation was conducted in phases so
that older instruments could be gradually replaced and staff training
could be simultaneously accomplished. Interfacing LIMS with the SFWMD
local area network (Ungerm ann-Bass) has given individual project
managers direct access to the laboratory results from their P.C. work
stations. The laboratory has been able to increase the level of
service provided and improve analytical quality. The LIMS/2000
allowed laboratory expansion necessary to meet additional sampling
mandated by Surface Water Management and Improvement (SWIM)
legislation, which doubled workload analyses in less than one year.

11:15AM ENV-10 Use of Factor Analysis in Evaluating Anion and
Chelator-Calcium Interactions in a Groundwater System in North
Florida. DEBRA E. BROWN (1), SAM B. UPCHURCH (2) AND DEAN F. MARTIN
(1), (1) CHEMS Center, Department of Chemistry, University of South
Florida, Tampa 33620; (2) Department of Geology, University of South
Florida, Tampa 33620. A study was carried out in a northern Floridian
groundwater system using private potable wells in the vicinity of Lake
City, FL. Some 33 wells were sampled and analyzed for 22 different
parameters. Factor analysis and WATEQF (for mineral equilibrium
analyses) were used to evaluate the interaction of calcium, selected
anions, and organic carbon. Results support a hydrogeologic model
developed previously (F.W. Lawrence and S.B. Upchurch. 1975. Ground
Water 20.;680-687) .

11:30AM ENV- 11 Age Factors Versus Land Characteristics in
Understanding Heart and Colorectal Cancer Death Rates Among Florida
Counties. MARION L. JACKSON (1) AND DEAN F. MARTIN (2), (1)
Department of Soil Science, University of Wisconsin, Madison, WI
53706 and (2) CHEMS Center, Department of Chemistry, University of
South Florida, Tampa 33620. The role of age factors (e.g. where
persons over 65 live in Florida) is considered in comparing the heart
and colorectal cancer death rates in 67 counties of Florida. The
degree of association with age (percentage of those 65 and older) and
heart death rate was = 0.77 (p <^0.001); for age and colorectal
cancer death rate, the value was r^ = 0.63 (p < 0.001). The
importance of age factors may be the result of the unique population
in Florida; that is, a rapidly growing state that has traditionally
attracted a post-65-year population.

11:45AM ENV-12 Synthesis of Zeolites and Related Material form Native
Florida Clay. JOHN S. NEIL, GIL A. ALMAGRO, AND DEAN F. MARTIN, CHEMS
Center, Department of Chemistry, University of South Florida, Tampa
33620. The manufacture of synthetic zeolite was accomplished in the
early 1960’s (Sand and Holding) with the production of synthetic
mordenite from pumice. The production of zeolites from clay is
common, but has never been accomplished with native Florida clays.
Waste phosphatic clay was obtained from IMC test pit number 3 (IMC #3)
for initial zeolite synthesis. Composition of IMC #3 waste phosphate
material was known. The H20/Na20 ratios are determining factors in
zeolite species crystallization. Synthesized zeolite material
produced is compared with untreated clay, and with commercially
obtained zeolite by x-ray diffraction. This study will examine if
there is a commercially viable application for Floridian phosphatic
clays in the manufacture of zeolites.

Florida Scientist

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Volume £1,

FRIDAY 12:00PM PH 209

BUSINESS MEETING: Environmental Chemistry

JEFFREY HOLLER, South Florida Water Management District, presiding

FRIDAY 1:30PM DOME ROOM, PLANT HALL

PLENARY SESSION I: Florida Academy of Sciences

LESLIE SUE LIEBERMAN, University of Florida, presiding

GEOLOGICAL AND HYDROLOGICAL SCIENCES

FRIDAY 8:30AM PH 340
SESSION A: Symposium

"Ground Water Contamination and Protection in Florida"

PATRICK GLEASON, James M. Montgomery, Consulting Engineers, Inc.,
presiding

8; 30AM GHY-1 prevention and Cleanup of Petroleum Contamination of Groundwater -
Florida's SUPER Act. SUSAN GRAY, Ph.D., Bureau of Waste Cleanup, Dept, of
Environmental Regulation, 2600 Blair Stone Rd., Tallahassee 32399-2400. In an effort
to protect public drinking water supplies, the Florida Legislature enacted the "State
Underground Petroleum Environmental Response Act" of 1986 (SUPER Act). This bill
created a trust fund which provides monies for the state to conduct site rehabilita-
tion projects or for reimbursement to persons who have voluntarily or through
negotiated enforcement cleaned up their site. Participation in the program is
encouraged by the establishment of a grace period (July 1, 1986 - October 1, 1988)
during which owners or operators of petroleum storage systems that report suspected
contamination will not be held liable for the costs of restoring their sites. As of
February 1, 1988, over 3200 applications have been submitted to the program. Rules
covering the order of site cleanup and/or reimbursement, establishing cleanup
guidelines, and providing for reimbursement of reasonable costs have either been
adopted or are under consideration by the Environmental Regulation Comission.

8:45AM GHY-2 Laboratory Models for Assessing the Fate of Groundwater
Contaminants. J.J. DELFINO, P.V. CLINE AND C.J. MILES, Dept, of Environmental
Engineering Sciences, Univ. of Florida, Gainesville 32611. Groundwater in Florida
has been contaminated by several classes of chemicals. Regulatory interest in
these chemicals has focused on impacts (e.g. loss of potable water supplies) and
cleanup/reclamation strategies. Also of interest, but often overlooked, are
chemical transformation processes in the subsurface. Using laboratory microcosms
as model groundwater systems, we studied: (a) hydrolysis reactions and related
processes involving aldicarb, a carbamate pesticide; (b) the degradation of indus-
trial and petroleum derived organic chemicals such as benzene, naphthalene, p-
cresol and methyl ethyl ketone; (c) the abiotic conversion of 1 , 1 , 1-trichloroethane
to 1 , 1-dichloroethene; and (d) the gasoline-water partitioning process where
several coefficients were measured for major aromatic compounds in gasoline.

The application of our laboratory model results to field sites can provide useful
assistance regarding the fate of these chemicals in the subsurface.

l988

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Program Issue

9:00AM GHY-3 Ground-water Contamination Programs of the U.S. Geological Survey.
IRWIN H. KANTROWltZ , U.S. Geological Survey, 227 N. Bronough St., Tallahassee,

32301. The Geological Survey has the principal responsibility within the Federal
Government of providing the hydrologic information and understanding needed to
achieve the best use and management of the Nation's water resources. The Survey
is involved in studies of ground-water contamination as part of its federally funded
research program and its cooperative water-resources program with State and local
agencies, and in support of the programs of other Federal agencies. Currently in
Florida there are two active ground-water studies dealing with contamination from
agricultural practices, three dealing with landfills and hazardous waste sites, six
dealing with ground-water contamination from wastewater disposal, three dealing with
saltwater intrusion, and nine dealing with general issues of ground-water quality
management. These activities and the operation of an extensive data-collection
network, provide much of the scientific basis for the ground-water management
programs of more than 60 State, regional and local agencies in Florida.

9:15AM GHY-4 i Landfills: A Thing of the Past? RICHARD C. JOHNSON, SR., P.E.,
VICE PRESIDENT, Camp Dresser & McKee Inc., 1305 U.S. 19 S., Suite 400, Clearwater.
Generally, groundwater contamination is a reality associated with landfills con-
structed prior to 1980. In some cases this contamination has reached public and
private drinking water supplies. State laws adopted in the mid-1980*s requiring
groundwater monitoring at all landfills have accelerated discovery of groundwater
contamination problems associated with landfills. In addition. Federal investiga-
tions under Superfund have identified sources of contamination and in some cases
provided funds for remedial action at these sites. Remedial action is also being
conducted by the state, municipalities and the private sector. For the past 4-5
years landfills have been constructed in a manner that greatly reduces the potential
for groundwater contamination through the use of liner systems, slurry walls, leach-
ate collection and detection systems, and mandatory groundwater monitoring. How-
ever, there is a trend in Florida to reduce our reliance on the use of landfills by
increasing our use of recycling and energy recovery systems.

9:30AM GHY-5 Radioactivity in Florida Ground Water. SAM B. UPCHURCH, Dept,
of Geology, Univ. of South Florida, Tampa, FL 33620. The presence of naturally-
occurring radioactive materials in Florida ground waters has created considerable
concern. The radioisotopes are daughters of uranium-238, which occurs in phosphatic
sediments throughout the state. Daughters of particular concern include Ra-226,
Rn-222, and Po-210. With the exception of minor contamination around agrichemical
plants, the distribution of these radionuclides is natural. Radium is a significant
problem in coastal aquifers. Radon is a problem along the flanks of the Ocala Arch.
Polonium creates local problems in the surficial and intermediate aquifers.

9:45AM GHY-6 Pesticides and Ground Water Protection. CHARLES C. ALLER, Chief,
Bureau of Ground Water Protection, Florida Department of Environmental Regulation,
2600 Blair Stone Road, Tallahassee, FL 32399. The development of the Department of
Environmental Regulation pesticide program, based on a preventative strategy of
ground water protection, is reviewed. Included is the current status of program
activities in ground water protection, interagency pesticide activities, field
studies and monitoring, and remediation provided through the statewide EDB clean-up
Future areas of emphasis for ground water protection through management of
agricultural chemicals are reviewed.

10:00AM BREAK

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10:15AM GHY-7 The Florida Pesticide Registration Process, a Mechanism for the
Prevention of Ground Water Contamination. ROGER C. INMAN, DVM, MS, Ph.D., Florida
Department of Agriculture and Consumer Services, Pesticide Bureau, Rm. 211 Mayo Bldg
Tallahassee, 32301. The Florida Department of Agriculture and Consumer Services,
(FDACS) regulates pesticides by the registration process and an enforcement program
based on the pesticide label as an enforceable document. "The label is the law". In
the state registration process, each pesticide undergoes a risk assessment to
determine its potential for detrimental effects on human health and the environment
including the probability of the pesticide getting in ground water. Florida
specific data may be requested from the manufacturer. After the pesticide has been
registered and used, monitoring programs are conducted to determine the validity of
the conditions of registration. This paper describes how pesticides are selected
for monitoring and provides the results of FDACS' targeted ground water sampling
programs which search for pesticides in ground water using "worst case" conditions.

10:30AM GHY-8 Status of Superfund Sites in Florida. JOHN M. RUDDELL,
Bureau of Waste Cleanup, Florida Department of Environmental Regulation,
Tallahassee, 32399-2400. Of the 450 Florida sites identified with potential
contamination as of January 1, 1988, thirty-nine are on, or have been
recommended for addition to, the National Priorties List (NPL) - making them
eligible for the Superfund program. Fourteen of these sites are under state
lead and twenty-five are managed by the U.S. Environmental Protection Agency
(EPA). Four of the sites have been proposed for deletion from the NPL - the
cleanup having been completed or long term treatment having been installed
and operating. Progress on the remaining sites will be discussed along with
the technical and institutional reasons for the length of time it takes to
complete the various phases of a Superfund cleanup. EPA's proposed schedule
for the current fiscal year will be presented and a brief discussion of the
Florida's cleanup program will be included.

10:45AM GHY-9 G-I - Wellhead Protection Rule. HOWARD L. RHODES, Florida
Department of Environmental Regulation, 2600 Blair Stone Road, Tallahassee,
Florida 32399-2400. The Florida Department of Environmental Regulation
determined there was a need to provide a program to prevent ground water
contamination in certain drinking water wellfields. An approach was developed
that produced two concentric circles around a specified well. Within these
circular zones, limitations would be placed on certain types of discharges. The
rule is, as of January 28, 1988, under administrative appeal. If it goes into
effect, then only upon specific designation would a wellfield have the
requirements of the rule imposed.

11:00AM GHY-10|Deep Well Injection of Wastewater: Preventing Ground Water
Contamination. VINCENT P. AMY, Pres., Geraghty & Miller, Inc., 2700 PGA Boulevard,
Palm Beach Gardens 33410. Detailed investigations and the history of operations
throughout south Florida demonstrates that this mode of disposal is effective in
preventing contamination of ground-water resources and estuaries and in eliminating
the impact of ocean disposal. Much of the lower half of the Florida peninsula is
underlain by a sequence of Tertiary carbonates having the necessary characteristics
favoring injection well disposal. There are 38 systems presently using injection
.wells to dispose of wastewater, primarily secondary treated sewage with some
'treated industrial waste. The Florida DER has been instrumental in implementing
t strict regulations controlling the design, construction, testing and operation
based on federally-mandated regulations. Since the implementation of the state's
■regulatory program, no instances of contamination of fresh-water aquifers have
been recorded as a result of operations, and only a few have resulted during well
; construction . These have been successfully remediated.

1988 Supplement

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Program Issue

11:15AM GHYrll Impact of Groundwater Contamination on Public Water Supplies.

J. EDWARD SINGLEY, Ph.D., P.E., James M. Montgomery, Consulting Engineers, Inc.,

1820 N.W. 23rd Avenue, Suite D, Gainesville, Florida 32609. The 1974 Safe Drink-
ing Water Act imposed maximum contaminant levels (MCL) on 27 different contaminants,
including six pesticides. The 1986 amendments added 56 more contaminants to the
list, including about 50 organic compounds. These include many synthesized
organic compounds that have been identified as carcinogenic or mutagenic. They
occur primarily in groundwaters.

Ill 30AM GHY-12 Emerging Legal Issues in Groundwater Contamination Cases.
THOMAS J. GUILDAY AND RALPH A. DEMEO, Huey, Guilday, Kuersteiner & Tucker, P.A.,
P.O. Box 1794, Tallahassee, FL 32302. Legal issues relating to groundwater
contamination in Florida are rapidly changing. The regulators responsible for
protecting groundwater are increasingly more aggressive as scientific technique
reveals the heretofore unknown scope of contamination caused by hazardous waste,
hazardous substances, petroleum products, and pesticides. The EPA and FDER have
undertaken extensive statewide groundwater monitoring and a study of ambient
groundwater conditions as a first step towards new regulation. FDER has recently
asserted common law remedies such as negligence, nuisance, trespass, and indemni-
fication to remedy groundwater contamination, as have private individuals.
Florida law is clearly undergoing rapid metamorphosis and existing statutory
and common law theories are being reevaluated. Congress and the Florida
Legislature should reexamine the legal issues and prepare new more meaningful
remedies to groundwater contamination in Florida.

FRIDAY 1 1 30PM DOME ROOM, PLANT HALL

PLENARY SESSION I: Florida Academy of Sciences

LESLIE SUE LIEBERMAN, University of Florida, presiding

FRIDAY 3;00PM PH 340
SESSION B

DONALD LOVEJOY, Palm Beach Atlantic College, presiding

3:00PM GHY 13 The Non-Thermal Geyser. R.N. LOWR I E . Lourie Engineering Co.
13607 State St., Tampa, FI. 33635. RBSTRRCT: R comparitiuely rare geological
phenomena, the non-thermal geyser is described and explained in terms of the
underground structure and the uater and air pressure dynamics required to generate
the geyser. This geyser has been observed in central Florida and is quite impressive,
starting uith a deep rumbling sound, folloued by several thousand gallons of uater
suddenly shooting into the air uith a loud noise. The dynamics of the non-thermal
geyser may also play a part in the generation of conventional thermal geysers. R
simple experiment is described to illustrate the geyser and its principles.

Florida Scientist

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Volume ^

3:15PM GHY-14 Heat and mass fluxes through the floor of the Guaymas Basin,

Field and Numerical Studies. A. T. FISHER, K. BECKER AND T. N. NARASIMHAN, Univ.
of Miami, RSMAS/MGG, A600 Rlckenbacker Cswy., Miami, FL 33149 (1 and 2); Lawrence
Berkeley Laboratory, ESD, Berkeley, CA 94720 (3). A compilation of 165 well-
navigated heat flow stations over a 3 by 10 km area in the southern trough of the
Guaymas Basin, Gulf of CA details the complicated thermal signatures of several
hydrothermal systems. Heat flow varies from 0 to nearly 9 W/m with changes of
3 M/m over only a few hundred meters. Fractures through recent, shallow intrusions
appear to focus fluid discharge which cools deeper-seated intrusions. Maximum fluid
temperatures >300 have been measured from the submersible Alvin. A finite-
difference numerical model has been used to simulate energy and fluid flow through
the trough and elucidates how sediment and basalt physical properties control geom-
etry, duration and intensity of interacting hydrothermal circulation systems.
Modeling results suggest that chaotically dispursed discharge-recharge events
accompany basalt injection and cooling on timescales as long as 100 k-years.

3:30PM GHY-15 Water Quality in Residential Drinking Wells in Florida. W. COPPENGER,
Environmental Chemistry Section, Central Laboratory Services, Florida Department of Health
and Rehabilitative Services (HRS), 1217 Pearl Street, Jacksonville, Florida 32231, A.R. REICH,
and R.W. FREEMAN, Toxicology Section, HRS, 1317 Winewood Boulevard, Tallahassee,
Florida 32399-0700, Approximately 20% of Floridians rely solely on private wells for
drinking water, which are currently not required to be evaluated chemically for water quality.
HRS has developed a sampling strategy for the evaluation of residential wells which includes
selection of 50 primary and 20 alternate representative drinking wells per county and
chemical analyses for 180 parameters. To date, sampling has been completed in 10 counties
and is in progress in an additional 2 counties. The most frequently encountered water quality
problems were color, iron and TDS. The most common synthetic contaminant found was
diethylhexylphthalate. There appears to be a trend of excess aesthetic water quality
parameters associated with certain counties. Data from this study will be combined with data
from an ambient water quality monitoring network and public supplies to give a
comprehensive view of drinking water quality in Florida.

3:45PM GHY-16 An Evaluation of the Pollution Potential of Three Aquifer Systems
in North Florida, ALLISON, D. , COOPER, R. , HOENSTINE, R. , AND, TVEINBERG, M. , Florida
Geological Survey, 903 W. Tennessee Street, Tallahassee, Florida 32304 and CERYAK,
R., COLE, N. , AND, O'CARROLL, T., Suwannee River Water Management District, Route 3,
Box 64, Live Oak, Florida 32060. The Florida Geological Survey and the Suwannee
River Water Management District are currently undertaking a comprehensive study to
evaluate the surflclal, intermediate and upper Floridan aquifer systems in north and
north-central Florida. A number of cores have been drilled and described to delin-
eate the extent, thickness, and lithologic characteristics of these aquifer systems.
These data were used to evaluate the pollution potential to these aquifer systems.
This evaluation is referred to by the acronym DRASTIC, identifies: depth to water,
net £echarge, a^qulfer media, s_oll media, topography, Lmp^ct of vadose zone, and
hydraulic to>i^*JCtivlty . Based on these parameters the relative vulnerability of
areas to groundwater contamination have been ranked and a map prepared displaying
these pollution potential Indices throughout the study area.

4:00PM GHY-17 Surface Sediment Composition and Distribution in Hillsborough
Bay, Florida. ROGER JOHANSSON AND ANDREW P. SQUIRES, City of Tampa, Dept. of
Sanitary Sewers, Bay Study Group, S700 Maritime Blvd., Tampa 33605. Surface
sediments were mapped to determine the approximate boundaries and percent areal
coverage of "mud" in Hillsborough Bay. The mapping effort comprised the first
step in a subsequent study to assess the exchange of nutrients between the
sediments and the water column. Depth recorder soundings along E9 transects were

1988 Supplement

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Program Issue

used in conjunction with sediment grain size analyses from 19 stations to produce
a sediment map. For mapping purposes, "mud" was assumed to occur at locations
where 50*/ or more of sediment particles passed through a 63 pm mesh sieve. Grain
size analyses revealed that sediment compositions, depending on location, ranged
from 4.7*/. to 98.9*/ "mud." The largest expanse of "mud" covered the deeper zones of
west-central Hillsborough Bay. We concluded that the areal coverage of "mud"
comprised approximately 24*/ of the total sediment surface area in Hillsborough Bay.

4:15PM BREAK

4:30PM GHY-18 Distribution of Pal ygorski te, HgO, and Other Major Minerals in a
Florida Phosphorite. DOUGLAS P. DUFRESNE AND FRANK N. BLANCHARD, Dept, of Geol . ,
Univ. of FL, Gainesville, FL 32611. The content of MgO in phosphorites is a major
concern lor the phosphate industry. The most common contributors of Mg are dolomite
and apatite^ in apatite Mg substitutes in small amounts for Ca. Other investigators
believe benef i c i at i on techniques can selectively remove much of the dolomite from
phosphorites thereby lowering the MgO content. However, it has been shown that in
some deposits the clay mineral palygorskite can contribute more MgO than dolomite.

A palygorskite sample from this study was determined to have a soluble MgO content
of greater than 87.. If present, palygorskite could, therefore, contribute to the
overall MgO content of the phosphorite and could raise the content above the
acceptable limit. Although clay minerals are removed by "desliming", there is
evidence that a significant amount of palygorskite may occur in rather durable
particles within the size range of beneficiated phosphorites. Current research is
being directed towards quantification and relationships of these Mg contributors.

4:45PM GHY-19 Strontium Isotopic Stratigraphy and Age Estimates for the Leisey
Shell Pit Faunas, Hillsborough County, Florida. D.S. JONES and P.A. MUELLER,

Florida State Museum, University of Florida, and Dept, of Geology, University of
Florida, Gainesville, FL 32611. The vertebrate fossil fauna of the Leisey Shell
Pit near Tampa Bay, is gaining recognition as one of the most significant Irving-
tonian mammalian faunas of North America. The fossil vertebrates occur in thin
bone beds bounded above and below by massive shell beds containing a rich inver-
tebrate (chiefly molluscan) fauna. Debate has arisen concerning the precise age of
the faunas at Leisey, Although generally agreed to be Pleistocene, estimates based
upon vertebrate biostratigraphy suggest a somewhat older age than do estimates
based upon molluscan biostratigraphy or correlation with uranium-series dates on
corals. To help resolve this controversy, ^^Sr/®^Sr ratios were determined on
molluscan shells throughout the section. These ratios were then correlated to the
global seawater ^7sr/®°Sr curve for age determination. The Sr Isotopes indicate an
early Pleistocene age for the fauna and a complex depositional history.

5:00PM GHY“20 Late Miocene Seismic and Lithologic Sequence Stratigraphy of
Southwestern Florida. M.W. EVANS, Mote Marine Laboratory, Sarasota, FL and A.C.
HINE, Marine Science Dept., Univ. South Florida, St. Petersburg, FL. More than 750
km of high resolution seismic reflection data and 23 well logs are used to describe
the late Miocene sequence stratigraphy of the Charlotte Harbor area. Two regional
unconformities have been identified and mapped throughout the area. The lower
surface (R-3) represents the limit of acoustic penetration throughout most of the
area and varies between 35 and 115 m in depth. The upper regional unconformity (R-
2) is dominated by a series of channel structures overlying the infilled troughs.
The R-2 reflector separates discontinuous, channelized Pliocene/Quaternary deposits
from the underlying Miocene sequences. A series of eight, late Miocene, sequences
have been identified between the R-3 and R-2 regional unconformities. The prelimi-
nary results of this study indicate that the complex stratigraphy of this area can
be accounted for by fluvial to paralic facies transitions interacting with multiple
sea level fluctuations.

Florida Scientist

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Volume ^

5:15PM GHY-21 Karsti f ication of the Florida Carbonate Platform: An Assessment
of Structural and Depositional Controls. M.W. EVANS (Mote Marine Laboratory,
Sarasota, FL), A.C. MINE and S.W. SNYDER (Marine Science Dept., Univ. South
Florida, St. Petersburg, FL). High resolution seismic reflection profiles and
adjacent borehole data (lithologic and geophysical) from Charlotte Harbor, Tampa
Bay and Crooked Lake in west-central peninsular Florida illustrate a widepread,
progressive, recti-1 inear pattern of karstification in middle Miocene to Quaternary
carbonates. The results of this study do not allow direct correlation of surficial
and shallow subsurface karst features with basement structure. However, the deep
seated nature of the karst features is indicated by geothermal springs in the
Charlotte Harbor area which flow from 700-900 m (based on geothermal gradients).
Similarly, tectonic processes cannot be evaluated from these data. They do
however, support a laterally and vertically progressive model of karstification
that correlates surface and subsurface features and does not require selective
vertical displacements.

FRIDAY 5:30PM PH 340

BUSINESS MEETING: Geological and Hydrological Sciences
DONALD LOVEJOY, Palm Beach Atlantic College, presiding

FRIDAY 6:30PM RIVERSIDE, STUDENT UNION BUILDING
SOCIAL

FRIDAY 7:30PM FLETCHER LOUNGE
BANQUET AND PLENARY SESSION II
FLORIDA ACADEMY OF SCIENCES

MEDICAL SCIENCES

FRIDAY 3:00PM PH 213
SESSION A

ROSEANN WHITE, University of Central Florida, presiding

3:00PM MED-1 AIDS in the Tropics: A Search For the Origins. WILBER SEQUEIRA,
Univ. of Fla., Inst, of Food and Agr. Sci., Forestry Resources and Conserv., GainesviRe
32611. The dramatic outbreak of the Acquired Immune Deficiency Syndrome (AIDS) in the
last few years, particularly in the USA, brought about a series of hypotheses attempting
to explain the origins of the cKsease. Although the isolation and identification of the
retrovirus causing the infection has been a major scientific achievement, the exact
conditions on which the disease originated and then rapidly spread still remains a mystery.
The first part of this paper deals with general epidemiological, etiological and
immunological aspects of AIDS. Then the case for an Afiican-Haitian connection is
examined based on the high incidence of AIDS among the populations of these two
geographical regions. Finally, the hypotheds for a possible anim^ origin of the HTLV-EI
virus is suggested in the light of increasing evidence of infections closely resembling AIDS
among non-human primates, and of socio-cultural factors which eventually might have
facilitated its transmission to susceptible humans in a tropical environment.

1988 Supplement

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Program Issue

3215PM MED-2 Comparisons of Patient HIV Test Results Obtained with ELISA and
Western Blot Methods. M. DONOHOE. R. WHITE. R. GENNARO, S. KLOTZ AND M.
SWEENEY. University of Central Florida, Dept, of Biological Sciences and Medical
Lab Sciences, Orlando 32816. Central Florida Blood Bank tested 237,004 blood
donors during April 1985 to December 1987 using the HIV ELISA antibody test. Six
hundred seventy-eight of these donors were determined to be repeatedly reactive
with that test. Seventyfive of the 678 repeatedly reactive donors were Western
Blot reactive, 37 were Western Blot indeterminant, and all others were Western
Blot negative. Twenty three donors were also tested with two different HIV ELISA
antibody test kits developed using two different white cell lines (H9 and CEM) to
grow the virus. These two different ELISA test kits were used for determination
of the incidence of false positive HIV ELISA test results due to patient sera
reactivity with white cell line antigens.

FRIDAY 3; 30PM PH 213

BUSINESS MEETING; Medical Sciences

ROSEANN WHITE, University of Central Florida, presiding

FRIDAY 6; 30PM RIVERSIDE, STUDENT UNION BUILDING
SOCIAL

FRIDAY 7:30PM FLETCHER LOUNGE
BANQUET AND PLENARY SESSION II
FLORIDA ACADEMY OF SCIENCES

PHYSICAL AHU SPACE SCIEMCES.

FRIDAY 3:00PM PH 209
SESSION A

JACK BRENNAN, University of Central Florida, presiding

3; 00PM PSS-1 Electron Mobility in Mercury Cadmium Telluride. J.D. PATTERSON
Physics and Space Sciences Department, Florida Institute of Technology, Melbourne,
FL 32901. The Friedel sum rule and the second Born Approximation is used to cal-
culate the screening length. It is discussed how a proper calculation of screen-
ing is necessary to calculate the mobility via the dielectric function. At tem-
peratures of interest an important scattering mechanism is scattering of carriers
by optical phonon modes. A major complicating factor in narrow band gap semi-
conductors is the fact that the energy bands are non parabolic.

Florida Scientist

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Volume ^

3; 15PM PSS-2 Physical Air Quality Baseline for East Orange County.

RALPH A. LLEWELLYN AND EDGAR R. VARGAS, Department of Physics, University of Central
Florida, Orlando 32816. During the past year and a half physical air quality data
has been collected throughout East Orange County. The purpose of the study was to
provide baseline information regarding atmospheric particulate aerosols in advance
of the development that is expected to occur in the area over the next decade and
prior to the start-up of a major coal -fired electric generating station recently
completed in the region. Quantities measured included particulate concentrations ,
radioactivity levels, and the concentrations of sulfate and nitrate compounds.

3:30PM PSS-3 Integral Equations in Plasma Physics. R. W. FLYNN,

Physics Dept., Univ. of South Florida, Tampa, Florida 33620. Even in the
absence of collisions, plasma waves damp out. This phenomenon, Landau damping,
is a central issue in plasma physics. Standard graduate level textbooks usually
begin with a chapter on the mathematical techniques thought necessary for
understanding Landau damping (complex integration, analytic continuation, and
Hilbert transforms). But, if the problem is posed as an integral, rather than a
differential, equation, this mathematical machinery can be sidestepped.
Landau's results are then obtained using only math accessible to an advanced
undergraduate.

3:45PM PSS-4 Diode-pumped Miniature Lasers. J. L. MONTGOMERY, M. YAO,

Y. HUANG and J. T. LIN, CREOL and Physics Department, Univ. of Central Florida,*
Orlando, FL 32816. Compact, long-lived and frequency stable diode-pumped laser is
described. The key parameters of the system such as beam focusing, mirror reflect-
ance and mode matching are analyzed by computer. Frequency doubling of diode-pumped '
system with visible emission is performed experimentally by various hlgh-ef f Iclency
crystals. Applications of the miniature lasers in ranging, communication, medicine
and optical processing are discussed.

4:00PM BREAK

4:15PM PSS-5 The Preparation of a Forthcoming Handbook of Infrared Optical
Materials. J. STEVE BROWDER, J. RICHARD DESALVO, MARK W. GRANT, AMANDA M. PHILIPS,
SEAN J. SEEBA, AND MARGARET A. SMITH. Jacksonville University, 2800 University
Blvd. N. , Jacksonville, Florida 32211. Numerous optical and other physical proper-
ties have been surveyed for more than 100 materials in the preparation of a hand-
book of infrared optical materials (to be published by Dekker) . Current and recent
journals, standard handbooks, and other compilations have been liberally consulted.
Certain techniques used in the collation and display of pertinent data are discuss- j
ed. Gaps in available data are highlighted; graphs and bar charts provide a com-
parison among competing materials. j

4; 45PM PSS-6 A Technique for Measuring the Temperature Coefficient of the Re-
fractive Index of Crystals from 36°C to 106°C. J. RICHARD DESALVO, Physics Depart-
ment, Jacksonville University, 2800 University Blvd. N., Jacksonville, Florida 32211.
A Mach-Zehnder interferometer is used to measure the change in optical path length in
a crystal due to a change in temperature. The effects of the changes in length are
removed by using the crystal's linear coefficient of thermal expansion value obtain-
ed in our laboratory in order to calculate the temperature coefficient, dn/dT for
the crystal.

i

5:00PM PSS-7 a Study of Cutoff Wavelengths of Fiber Optic Polarizers. GARY
MITCHELL, Physics Department, Jacksonville University, 2800 University Blvd. N.,
Jacksonville, Florida 32211. Measurements were made on single mode optical fibers
which exhibit polarization properties. The cutoff wavelengths for two orthogonal
polarized modes were determined and the bandwidthsbetween the cutoff wavelengths
were calculated. This project was carried out at Bell Laboratories under the super-
vision of Roger H. Stolen.

1988 Supplement

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Program Issue

Siism PSS-8 A New Analysis of Simultaneity. J . P. CLAYBOURNE, 1 302
Heron Dr.,, Orlando, PL 32803* The conclusion that events cannot he
simultaneous in both of two inertial frames of reference is an
Inference from a method of defining simultaneity exemplified hy
Einstein’s famous train/emhankment thought experiment. It is also an
inference based upon an incomplete description of this experiment.

An alternate relativistic approach to defining simultaneity which
features synchronized clocks leads to the conclusion by observers in
both reference frames that events simultaneous in one frame of
reference are simultaneous in any other frame. When the Lorentz
transformation is used in an analysis of the train/embankment
experiment the results agree with those of the synchronized clock
method. Further comparison of the two methods provides new
perspective on the principle of the constancy of the speed of light
and the Lorentz transformation.

FRIDAY 5i30PM PH 209

BUSINESS MEETING! Physical and Space Sciences

JACK BRENNAN, University of Central Florida, presiding

FRIDAY 6:30PM RIVERSIDE, STUDENT UNION' BUILDING
SOCIAL

FRIDAY 7:30PM FLETCHER LOUNGE
BANQUET AND PLENARY SESSION II
FLORIDA ACADEMY OF SCIENCES

ELOBUOA CQMMUlEfi OK RMK MR ELMIS. MR MIMALS.

FRIDAY 9 1 00AM PH 213
SESSION A

I, JACK STOUT, University of Central Florida, presiding

S:00AM REB-1 Endangered and Threatened Plants and Lisas ds
Ridge Scrubs. STEVEH P. CHRISTMAN, Dept, of r4atural Sciences,
Museum, Gainesville, 32611. A three-year field study of Florid
pine scrubs, funded by the Florida Nongame Wildlife Program, ha
better understanding of the ranges of most central Florida scru
The status and distributions of 17 species of plants and two sp
lizards that are endemic lor nearly endemic) to the Lake Wales
are reported. Several new county records, range extensions, an
of erroneous literature records are documented. At least two s
plants seeiTi threatened with imminent extinction in the wild, an
others are approactiinq that condition.

in Lake
Florida
a inter
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e c i e 5 D
R i d q e ,
d c o r r I
pec i es
d 5 e V e r

Hales
State
or sand
ted in a

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f

Florida
c t i 0 n s
of scrub
a i

Florida Scientist

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Volume ^

9; 15AM REB-2 Endemic Arthropods of Florida Uplands, MARK DEYRUP, Archbold
Biological Station, P.O. Box 2057, Lake Placid, FL 33852. The uplands of
peninsular Florida are ancient dune systems that escaped flooding during
inundations of most of the peninsula, and currently remain as islands of distinct
habitat edaphically characterized by deep, sterile, excessively drained sand.
These areas are known for endemic plants and vertebrates. The first list of
upland endemic arthropods is summarized. This list includes species that are
habitat-specific but widely distributed in Florida, as well as species that are
extremely restricted in distribution. The endemic arthropods are usually
burrowers or dependent on upland plants and animals; a relatively high
proportion of the insects are flightless.

9:30AM REB-3 Discovery of Intergeneric Hybrids of Calamintha ashei
(Labiatae) and Conradina brevifolia (Labiatae) on the Lake Wales
Ridge, Florida. ROBIN B. HUCK, Division of Recreation and Parks,
District 5, Route #1, Box 107-AA, Clermont, FL 32711. Intergeneric
hybrids between Calamintha ashei (Weatherby) Shinners and Conradina
brevifolia Shinners were recently discovered on the Lake Wales Ridge
area of Central Florida. These two perennial mint species are endemic
to the isolated sandy dunes of this area of Florida, but rarely are
found growing together sympatrically . There is some overlap in
blooming time between the two species. Hybrid leaves have intermedi-
ate characters while hybrid flowers are malformed. The hybrid plants
are of considerable age. Although a preliminary analysis suggests
these hybrids are sterile, consideration must be given to the long
term contribution of intergeneric hybridization to small contracting
gene pools in an area where specialized habitat is rapidly vanishing.

9:45AM REB-4 A Biosystematic Study of Chionanthus in the Southeastern United
States. S. C. ELFERS, University of Central Ff^rida, Dept, of Biological
Sciences, Orlando 32816. The genus Chionanthus, in its restricted sense, occurs
disjunctly in the southeastern United States and southeast Asia. Three taxa have
been recognized to occur in Florida: C. virginica has the widest distribution from
the Appalachians across the southern coastal plain; C. henryae was described from
Okaloosa county and is reported also from Georgia, Alabama and Arkansas; C.
pygmaea is endemic to Florida, apparently being restricted to scrub sites along
the Lake Wales Ridge. virginica and ^ pygmaea are distinguished by size and
floral morphology while the separation of ^ henryae is more subtle in its
characterization by floral morphology. The broader distribution and limited
polymorphism of C. virginica may imply a closer relationship with ancestral types.

10:00AM REB-5 An Analysis of Loggerhead and Green Turtle Reproductive Success
at Patrick Air Force Base, Florida, 1987. J.L. GUSEMAN AND L.M. EHRHART, Dept, of
Biological Sciences, University of Central Florida, P.O. Box 25000, Orlando 32816.
A marine turtle nesting survey conducted on the 7 km of beach inside the boundaries
of Patrick Air Force Base in 1987 showed that this previously unstudied beach sup-
ports significant nesting activity by the loggerhead turtle (Caretta caretta) , a
threatened species, and by the green turtle (Chelonia mydas) , an endangered species
Loggerheads nested at the rate of 111 nests/km and green turtles deposited a total
of 10 clutches at PAFB in 1987. Clutches of 32 loggerheads and eight green turtles
were counted and monitored throughout incubation. Mean emerging success rates for
these nests were 89.9% (loggerheads) and 84.9% (green turtles). Raccoon predation,
commonly a problem on marine turtle nesting beaches, was not observed . The only
post-emergent mortality factor observed was disorientation by beachfront lighting.
Research supported by USAF, Eastern Space & Missile Center, Patrick Air Force Base,
Florida.

10:15AM BREAK

1988 Supplement

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Program Issue

10:30AM REB-6 The Role of Nutrients and Energy in the Winter Diet Selection of
the West Indian Manatee (Trichechus rnanatus) at Homosassa Sorings, Florida. D.J.
SILVERBERG AND J.G. MORRIS, Dept, of Bioloqical Sciences, Florida Inst, of Technol-
ogy, 150 W. University Blvd., Melbourne, FL 32901-6988. Thirty fecal samples were
collected over a period of two years, from adults and juveniles, to ascertain fre-
quencies of items in the diet. One-meter quadrat plots were utilized to determine
abundance of aquatic vegetation. Emergent, submergent, and natant vegetation were
collected for preparation of reference slides of plant epidermis as well as for
seasonal analyses of protein, carbohydrate, lipid, and caloric content using
Lowry's, phenol -sul furic, sulphophosphovanill in tests, and bomb calorimetry,
respectively. Analysis indicated six species as being major contributors to the
diet: Ruppia maritima, Hvdrilla yerticillata, Ceratophyllym demersurn, Myrioph.yl.l.um
spicatum, Vallisneria neotropical is, and Typha spp. Changes in values between
sampling periods yielded positive correlations to dietary preference for Ruppia,
Ceratopnvilum, Eichornia, and Vallisneria.

10* 45PM REB-7 South Florida Fox Squirrels. DR. BARBARA ROTHSTEIN AND
SUZANNE BANAS, Everglades Institute P.O. Box 653954 Miami FI 33265-3954. The
distributions and identification of the Mangrove and the Everglades Fox Squirrels
in South Florida are discussed in this preliminary investigation. Personal
sightings, ’’sign", surveys and museum collection investigations are included in
this study. Special attention is paid to discrepancies in both literature
classification and common local naming. Historical and current distributions
are compared and discussed.

FRIDAY 11:00AM PH 213 , „ ^ +-

BUSINESS MEETING: Florida Committee on Rare and Endangered Plants
and Animals

I. JACK STOUT, University of Central Florida, presiding

FRIDAY 1:30PM DOME ROOM, PLANT HALL

PLENARY SESSION I: Florida Academy of Sciences

LESLIE SUE LIEBERMAN, University of Florida, presiding

FRIDAY 6:30PM RIVERSIDE, STUDENT UNION BUILDING
SOCIAL

FRIDAY 7:30PM FLETCHER LOUNGE
BANQUET AND PLENARY SESSION II
FLORIDA ACADEMY OF SCIENCES

SCIENCE TEACHING

i

FRIDAY 8:30AM PH 354
SESSION A

WILLIAM TRANTHAM, Florida Keys Community College, presiding

Florida Scientist

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Volume ^

8:30AM TCH-1 Articulation at-sea. Linda Mytinger-Tyson, Florida Institute
of Oceanography, 830 First Street South, St. Petersburg, Florida 33701. Recog-
nizing the special importance of marine science education in Florida, the FIO
has provided within the NEPTUNE Program a central focus for the integration of
educators, scientists, facilities and existing state programs. Articulation
success has been demonstrated in the creation of relationships between admin-
istration and science faculty of cooperating institutions. Mutual respect for
course offerings and opportunities is fostered through this program in an attempt
to feed experienced community college students into Florida's upper level State
University System marine science programs. Both student and institution benefit
from the smooth transition gained from the NEPTUNE relationship. The inclusion
of summer in-service teacher institutes enhances continuity between pre- and
post-secondary marine science education in Florida.

8:45AM TCH-2 General Marine Biology at Palm Beach Junior College,
4200 Congress Avenue, Lake Worth, Florida 33461. CAROL S. BUTLER
During Spring Break 1987 and between the two six-week summer
semesters of 1987, Palm Beach Junior College's Biology Dept., in
conjunction with Florida Institute of Oceanography and Sea World's
Marine Science Conservation Center on Long Key, Florida, successfully
presented OCB 2930. Twenty-six students and one PBJC faculty
instructor participated in each six-day trip. From Ph.D.'s to one-
semester Biology students divided into three groups of nine, the
meld was excellent. The facilities and instruction were fine. The
exchange of ideas and the concern and helpfulness of the students
for each other were outstanding. March 1 through March 6, 1988 will
be the third offering. We anticipate including the above course
annually as part of our Biology curriculum.

9:00am TCH-3 shipwreck Mapping and Artifact Preservation at
Florida Keys Community College. R. DUNCAN MATHEWSON

This paper will discuss the involvement of community college
students in shipwreck mapping in the Nuestra Senora de Atocha
Underwater Training facility and artifact preservation at the
Mel Fisher's Treasurer Salvor Museum. Research supported by
Title II Grant for Excellence in Math, Science and Computer
learning .

9:15AM TCH-4 Summer Program on Scientific Inquiry. ALICIA A. ZUNIGA AND LEON A.
CUERVO. Florida International University, Biology Dept., Miami, Florida 33199.

The Summer Program on Scientific Inquiry is offered at Florida International Univer-
sity since 1984 . Selected High School Juniors and Seniors students spend 6 weeks work-
ing full-time on individual projects. The inquiry approach emphasizes the investiga-
tive aspect of science and how through scientific research knowledge is acquired and
changed. Each student conducts one project under the mentorship of an investigator
who supervises a maximun of two students. This close interaction fosters the develop-
ment of role models and allows detailed coaching in the various activities , which in-
volve search of the relevant literature, experimental design, performance of experi-
ments , observations , predicting , recording and analysis of results. We have found that
the accomplishment level of these students was similar to that obtained with under-
graduate students. The results indicate that students in this program are very compe-
titive in seeking and obtaining fellowships and acceptance to undergraduate and pro-
fessional schools.

1988 Supplement

-53-

Program Issue

9; 30AM TCH-5 Shipboard Operations for the Motivation of Community
College Students in the Marine Sciences . WILLIAM TRANTHAM, Florida
Keys Community College, Key West, Florida 33040. This paper will
discuss the utilization of the MV Yankee Freedom to familiarize
students with biological, physical and chemical oceanography under
varying sea conditions along the oceanic island chain west of Key
West including Ft. Jefferson National Monument and Loggerhead Key.
Research supported by the Florida Public Title III Post Secondary
Education Project Grant, Excellence in Math, Science and Computer
learning .

9:45AM TCH-6 Honors Biology Research at St. Petersburg Junior
College. THOMAS J. KING, St. Petersburg Junior College, 3200 81st
Street North, St. Petersburg, Florida 33710. Honors Biology
students participate in a unique program of research with Bay Pines
Veterans Hospital faculty. Students perform original research in
the areas of: biomedical marine research, biochemical endocrinology,
experimental pathology, experimental physiology, and cancer research
and genetics. Students spend 15 hours per week in research projects
in addition to regular scheduled classes. Evaluations from all
involved indicate that this is a highly successful program.

10:00AM BREAK

10:15AM TCH-7 Concept Mapping . SALLY S. DEGROOT, St. Petersburg
Junior College, 3200 81st Street North, St. Petersburg, Florida
33710. The application of concept mapping to a Microbiology course
with a diversified student enrollment was carried out at SPJC.
Concepts were selected from chapters of the text, students were
instructed in the methodology, placed in groups of five and encour-
aged to develop their own maps. After discussion in class that
included lecture and questions each group prepared a single map they
could defend. Maps were critiqued by the instructor and returned.
Student response was generally positive and test scores reflect an
increase in understanding the material. Maps were created as ques-
tions on tests and an exit test consisting of maps and an interview
is being developed. Results indicate concept mapping is a positive
way to help students relate material and integrate new knowledge
in microbiology.

10:30AM TCH-8 Voyager ' s Mission to Jupiter, Saturn , Uranus and
Neptune . DARYL SCHRADER, St. Petersburg Junior College, 3200 81st
Street North, St. Petersburg, Florida 33710. This color slide,
lecture presentation will cover geological, physical and chemical
data aquired during Voyager's mission to Jupiter, Saturn, Uranus
and Neptune with specific emphasis on the scientific justification
of remote probe investigation of the outer planets of our solar
system.

11:00AM TCH-9 BSC-2251 , The Development of an Interdisciplinary
Course . BRUCE GRAGG, Florida Keys Community College, 5901 Junior
College Road, Key West, Florida 33040. A discussion of the
"cross-talk" among the Scientific Disciplines of Chemistry,
Biology, and Oceanography resulting from the Neptune III Program
in Excellence at Florida Keys Community College. Research
supported by the Florida Public Title III Post Secondary Education
Project Grant, Excellence in Math, Science and Computer learning.

Florida Scientist

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Volume ^

11:15AM TCH-10 Genetic Engineering--Some Teaching Strategies, p. j.
THOMPSON, Ph.D. , and B. A. DINSMORE, M.S., Florida Community
College, 11901 Beach Blvd. , Jacksonville 32216 and Manatee Community
College, Venice 33595. Since Watson and Crick's discovery of the
structure of the gene more than thirty years ago, scientists have
contemplated the possibilities for changing this structure at will .
To date, such genetic tinkering has produced human insulin, inter-
feron, frost-resistant species, and a host of others. These "design-
er genes" have become a billion-dollar success story. This presenta-
tion will explore selected strategies for introducing community-
college students to biotechnology. It will include a review of
several useful references, computer-assisted instructional materials,
laboratory exercises, and a public service educational program.

11:30AM TCH-11 Simple Computer Programs for Physics Demonstration.
GARY FREED, Florida Keys Community College, 5901 West Jr. College
Road, Key West, Florida 33040. Several simple programs were
written in basic to demonstrate the use of numerical methods in the
solution of introductory physics problems. Problems such as free-
fall with air resistance which are often overlooked due to the
complexity of analytical solutions may be easily solved by simple
computer analysis, which, at the same time, serves to acquaint
students with numerical methods and programming.

FRIDAY 11:45AM PH 354

BUSINESS MEETING: Science Teaching

WILLIAM TRANTHAM, Florida Keys Community College, presiding

FRIDAY 1:30PM DOME ROOM, PLANT HALL

PLENARY SESSION I: Florida Academy of Sciences

LESLIE SUE LIEBERMAN, University of Florida, presiding

FRIDAY 3:00PM PH 354
SESSION B: Symposium
"Community College Science Teaching"

WILLIAM TRANTHAM, Florida Keys Community College, presiding

FRIDAY 6:30PM RIVERSIDE, STUDENT UNION BUILDING
SOCIAL

FRIDAY 7:30PM FLETCHER LOUNGE
BANQUET AND PLENARY SESSION II
FLORIDA ACADEMY OF SCIENCES

L988 Supplement

-55-

Program Issue

aOCLlAL SCIENCES

SATURDAY 9; 30AM PH 213
SESSION A

HORST FREYHOFER, Florida Institute of Technology, presiding

9:30AM SOC-1 Rationalists in Sombreros; Poetry and Science. RUDOLPH W.
STOECKEL, Humanities Department, Florida Institute of Technology, Melbourne, FL
32901. In an age of emergent science like the seventeenth-century, there can be
no doubt that there was a general feeling that, as Marjory Hope Nicholson phrased
it, "Newton demands the Muse. "What of ages when for one reason or another,
science was looked upon with less enthusiasm, or with downright fear? Might the
muse then be what Alvin Kernan calls "cankered"? This paper will survey some
divergent poetic attitudes toward science ranging from fifth-century Athens to
contemporary America.

9:45AM SOC-2 Technology and the Oblivion of Being. ROBERT L. SHEARER,

Florida Institute of Technology, Melbourne, FL 32901. This paper presents a
philosophical overview of technology as the project of temporal and spatial "de-
distancing" which carries the subtle implication of instantaneity . The ramifi-
cations of this aim, along with the heedlessly ob jectivizing tendency of science
and technology with regard to human reality, become the basis for an elucidation
of the meaning of Martin Heidegger's statement that the destiny of Being is
oblivion.

10 ; 00 AM SOC-3 The Cross-Cultural Psychology Critique of Psychology's Place in
the Social Sciences. WILLIAM K. GABRENYA, JR., School of Psychology, Florida
Institute of Technology, Melbourne, FL 32901.

The discipline of Psychology suffers theoretically and practically from its isolation from the
social sciences. Cross-cultural psychology may serve as a broker between psychology and
the social sciences because its adherents must interact intellectually and socially with
members of each of these disciplines. The intermediate position of cross-cultural psychol-
ogy within these areas was explored by examining citation practices in the Journal of Cross-
Cultural Psychology (JCCP) and several major psychology, anthropology and sociology
journals. Analyses of periodical citations based on a categorization of the cited journals’
subject matter revealed moderate relationships between JCCP and the psychology, anthro-
i pology and sociology journals but little relationship between the psychology and the social
science journals.

10:15AM SOC-4 The Influences of Rewards on Intrinsic Motivation. MICHAEL RAICH,
Dept, of Child and Family Studies, Florida Mental Health Inst, and the Dept, of
^Psychology, Univ. of South Florida, Tampa, FL 33620. Much research focuses on
[people's loss of interest while working to complete desirable and difficult
I activities for rewards. Deci and Ryan in their Cognitive Evaluation Theory propose
that people possess an ongoing need to seek and perform challenging activities
competently, and they will do so unless pressure for particular outcomes with it
I occurs. This pressure creates extrinsic motivation which reduces intrinsic
motivation for the activity. Some studies show though that such rewards do not
undermine intrinsic motivation. These exceptions are highlighted. An alternative to
Cognitive Evaluation Theory as it applies to this area of study is suggested. It is
based upon the observation that measures of intrinsic motivation typically fall only
when rewards are promoted as task goal-objects to be achieved through competency,
yet no portion of the reward is gained by effective responding until work is
completed. Findings supporting this assertion are introduced and discussed.

Florida Scientist

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Volume 51_

10:30AM SOC-5 An analysis of the factors affecting the U.S. trade deficit in the
1980' s. MICHAEL TRUSCOTT AND BROCK BLOMBERG, Department of Economics, University of :
Tairpa, Tampa, FI. 33606. By adopting a national income and product accounting frame-
work, trade deficits in the U.S. during the 1980 's can be examined in terms of their
relationships to gross private savings, gross private investment, and the total gov-
ernment budget deficits. It has been shown that the trade deficit arises due to the
insufficiency of gross savings available to finance both gross investment and the
total government deficit; the shortfall in domestic savings has been supplemented by
an inflow of foreign savings. This increasing dependence on foreign capital has been
largely attributed to a decrease in the domestic savings rate and to a persistent
increase in U.S. budget deficits. This paper will concentrate on the underlying fac-
tors influencing the broad aggregates in the national income and product accounts.
Money supply variables, exchange rates, and interest rates during the 1980 's will be
examined to determine how and to what extent they affect foreign capital flows, the
trade deficit, and domestic savings and investment.

10:45AM BREAK

SATURDAY 11:00AM PH 213
BUSINESS MEETING: Social Sciences

HORST FREYHOFER, Florida Institute of Technology, presiding

URBAN ANH REGIONAL PLANNING

FRIDAY 3:00PM PH 343
SESSION A

ANTHONY LAGRECA, University of Florida, presiding

3: 00PM URP-1 Community Waste to Energy System Technologies (CWEST), Alex
E.S. Green, University of Florida, Department of Mechanical Engineering,
Gainesville 32611. The problem of solid waste disposal by small and medium size
communities in low population density regions is addressed in the context of major
national problems. In particular, the merits of coburning community waste with
locally grown or gathered biomass together with natural gas and coal as needed are
examined. What emerges is a strategic approach in which local problems are solved
in a fashion which helps alleviate national problems rather than in isolation. In
this approach, factory fabricated modular waste and biomass to energy systems in
the 10-100 ton per day (tpd) range are installed in local communities and operated
by well trained personnel. This distributed solution has many advantages with
respect to other waste disposal strategies. It makes available inexpensive energy
in the form of steam, hot water or hot gas for which there are many possible uses.

1988 Supplement

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Program Issue

3 1 15PM URP-2 Estuarine Shoreline Changes in Sarasota County, Florida: A Case
Study on the Effectiveness of the Regulatory Process. R.K. EVANS, M.W. EVANS, Mote
Marine Laboratory, Sarasota, and B.S. PERRY, Sarasota Co. Natural Resources Dept.,
Sarasota. Estuarine shorelines of Sarasota County, Florida are classified accord-
ing to vegetation types and structural modifications based on high resolution
aerial photography for the years 1948, 1978 and 1987 with 1978 and 1987 data
verified by field observation. Linear measurements and changes for each shoreline
type are shown by bay system, barrier or mainland location, and for the entire
county. Trends in shoreline changes are compared to legislation, ordinances and
policies implemented in the 1970*s and evaluated according to effectiveness for
resource management. Results indicate that legislation has slowed the rate of
shoreline alteration via retaining a fringe of intertidal vegetation seaward of
bulkheads or revetments; however, the rate of transitional and upland alteration
remains unchanged. With the predicted increases in sea level rise, policies
directed solely at intertidal resources may be of limited long-term value.

FRIDAY 3:30PH PH343

BUSINESS MEETING*. Urban and Regional Planning
ANTHONY LAGRECA^ University of Florida, presiding

FRIDAY 6:30PM RIVERSIDE, STUDENT UNION BUILDING
SOCIAL

FRIDAY 7:30PM FLETCHER LOUNGE
BANQUET AND PLENARY SESSION II
FLORIDA ACADEMY OF SCIENCES

MEBICAM. AggQClATim QZ EMZlCa IfiACHEBZ

Saturday 9:30AM PH 209
Session A

ROBERT CARSON, Rollins College, presiding

9:30AM APT“1 A Laboratory Practical for College Physics. WILLIAM M. KELLER,
St, Petersburg Junior College, Clearwater Campus, 2465 Drew St., Clearwater, FL
34625, On this campus, a traditional two semester Physics laboratory is taught.
Several years ago, as a matter of personal Interest and to encourage further
student Interest, the faculty developed a practical examination for each course.
This paper will discuss the construction and administration of the examination,
the emphasis on individual student effort through out the semester, and student
reaction. Specific examples utilized in the examination will be presented and
discussed .

Florida Scientist

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Volume

9 : 4 5AM APT- 2 A Descriptive Optics Course for Non-Science Students. STANLEY S.

BALLARD, Dept, of Physics, University of Florida, Gainesville 32611. This course, "Light,
Color, and Holography", has no prerequisites and is entirely elective. It is accepted toward
the natural sciences requirements faced by all undergraduates. It attracts a broad spectrum
of students: from freshmen to graduate students, and from majors in art, architecture,
journalism, marketing, and computer science to senior engineers. Use of mathematics must
be restricted to simple algebra and graphs and curves. Every effort is made, however, to
avoid superficial treatments. Additional topics covered include sources and detectors of
light, vision, optical instruments, the wave theory of light, common optical atmospheric
phenomena, and lasers. Lecture demonstrations are a major part of the presentation.

Student response has been good. The course was first given in Fall 1979 to a class of about a
dozen. It has been offered each semester since then, and the enrollment has increased
steadily to around 100.

10:00AM APT-3 Management and Control of an Open Physics Laboratory.
Lowell Seacat, Physics Department, Valencia Community College,
Orlando, FI-, 32811. Methods by which an Open Physics Laboratory is
managed and controlled will be discussed in this paper. Included in
this discussion will be ways that performance is measured and how
attendance and performance records are kept. Also, the way pre-
experiment lectures (orientation) and how problems encountered in the
Open Physics Laboratory concept are handled. Both advantages and
disadvantages of an Open Physics Laboratory will be brought to light.

10:15AM APT-4 Designing and Teaching a Course on Nuclear Power, Nuclear Arms,
and Nuclear War for Non-science Majors. ROBERT G. CARSON, Physics Department,
Rollins College, Winter Park, FL 32789. Creating a reasonable course on nuclear
power, arms, and war for students with backgrounds and interests in fields other
than science can be challenging! An overview of the design process as well as
modifications employed during the evolution of this course over the past two years
will be presented. Also discussed is the variety of methods and materials used in
the course (ranging from short student response papers, a daily journal, and de-
bates to videos, computer simulations, and radioactivity experiments). Finally,
students are interested in this course; their responses will be shared.

10:30AM APT- 5 Physics Teacher Resource Agent Update. JANE BRAY, Boone High
School, Orlando, FL 32806, BETTY VAIL, West Orange High School, Winter Garden, FL
32787, BETTY PREECE, Melbourne High School, Melbourne, FL 32901, ROBERTA HIMES,
Edgewater High School, Orlando, FL 32804, CATHY COLWELL, Mainland Sr. High School,
Daytona Beach, FL 32014 AND PAULA LATOENCE, Palatka High School, Palatka, FL
32077. Florida's PTRA's were trained by the American Association of Physics
Teachers in a program funded by the National Science Foundation. A brief report
as well as a few demonstrations useful for physics teachers in the classroom will
be presented. The possibility of future workshops will also be discussed.

10:45AM BREAK

11:00AM APT-6 Advanced Placement (AP) Physics. J. J. BRENNAN, Physics Depart-
ment, University of Central Florida, Orlando, FL 32816 AND J. PATRICK POLLEY,
Physics Department, Rollins College, Winter Park, FL 32789. The Florida Legisla-
ture has provided funding to reward school districts for each of their students
who earn a 3, 4 or 5 on an Advanced Placement Exam. This has encouraged principals
to offer AP Physics courses. Nationwide in 1987, 4700 students took the Physics B
exam, 2500 took the Physics C - Mechanics exam, and 1500 took the Physics C -
Electricity and Magnetism exam. In Florida's 300 high schools 16,300 students
took a first year physics course, 668 students took AP Physics B and 251 students
took the AP Physics C course. AP Physics courses will also be discussed.

1988 Supplement

-59-

Program Issue

11* 15AM APT-7 Physics Teacher Computer Network, JAMES E. HOWARD, Trinity
Preparatory School, AOOl SR 426, Winter Park, Florida 32792 and JOHN J. BRENNAN,
University of Central Florida, Physics Department, Orlando, Florida 32811. All of
us know well of the isolation of high school physics teachers. Never can we run
down the hall for an answer to a tough question or for help in illustrating a
complex principle. One possible solution to this dilemma is a computerized
bulletin board system, A Florida DOE/Unlversity of Central Florida grant has
funded for this year the Physics Teacher Computer Network (PTCN) . The PTCN
includes sections for messages for teacher to teacher exchange, for general
bulletins, for data files including test questions/worksheets/lab writups, and for
computer programs. Modems are being sent to 25 teachers this spring. Saturday
training sessions are being held and additional sessions will be given this
summer, A report on the status of the network will be given.

11530AM APT-8 Microcomputer-Based Laboratories in Kinematics, Sound, and
Thermodynamics. E. RONALD KIRKLAND, Winter Park High School, 2100 Sumer field
Road, Winter Park, FL 32792. The author was at Tufts University for two weeks the
summer of 1987 with 20 other physics teachers to work on curriculum for the hard-
ware and software that will be demonstrated. Typical lab notes will also be
supplied .

Saturday 12:00PM PH 209

BUSINESS MEETING: American Association of Physics Teachers
ROBERT CARSON# Rollins College# presiding

Saturday 1:30PM PH 209
Session B

ROBERT CARSON# Rollins College# presiding

I 1:30PM APT-9 Homey Physics Labs. KAREN D. MUSSER, Lyman High

i School 1141 Lake Ave . , T.ongwood , FL 32 750. Working on a grant from
the AAPT for innovative teaching# the author is developing a set of
, labs for the high school student to take home and complete. These
! "homey" labs are designed to use only materials found commonly around
the house. The author's main ptirpose is to dispel the notion that
Physics requires expensive equipment and measuring devices. The skill
of estimation is stressed and the labs are designed to be fun and
i involve the entire family in the study of physics. Sample labs will
be distributed.

I 1:45PM APT-10 Networking in Physics Education— A Followup Report on Activities
I Resulting from the Inter American Conference on Physics Education in Mexico, July
I 1987. BETTY PREECE, Melbourne High School, Melbourne, FL 32901. Several groups
1 of physics teachers and the American Association of Physics Teachers are actively
1 working on establishing networks to improve the teaching of physics at all levels,
j These groups met during the AAPT Winter Convention in January, 1988. Opportunities
for participation will be described in this report and offered to those attending.

I Special emphasis will be given to the Topical Network Group on Modern Physics.

Florida Scientist

-60-

Volume ^

2; 00PM APT-11 Physics Teacher Resource Agent's Laboratory Workshop. JANE
BRAY, Boone High School, Orlando, FL 32806, BETTY VAIL, West Orange High School,
Winter Garden, FL 32787, BETTY PREECE, Melbourne High School, Melbourne, FL 32901,
ROBERTA HIMES, Edgewater High School, Orlando, FL 32804, CATHY COLWELL, Mainland
Sr. High School, Daytona Beach, FL 32014 AND PAULA LAWRENCE, Palatka High School,
Palatka, FL 32077. Florida's PTRAs v?ill present a workshop in which physics
teachers will discuss methods to improve, change, or add to the laboratory component:
of their classroom instruction. Hands-on will be the name of the game, and physics
teachers will get to try out a variety of labs Including computer interfacing, the
use of video taping, and instruction with physics toys.

AUTHOR INDEX

page

author

Eaag-

ALBERTS, V.

19

BUTLER, C.S.

52

ALEXOPOULOS, M.

33

CALDWELL, J.W.

29

AL-KHAMIS, T.M.

34

CALHOUN, D.S.

1

ALLER, C.C.

41

CANFIELD, D.E.

21

ALLISON, D.

44

CARLSON, P.H.

15

AL-RUWEHY, H.M.

37

CARRIER, J.C.

27

AMALGRO, G.A.

39

CARSON, R.G.

58

AMBRISCO, K.

24

CERYAK, R.

44

AMMONS, J.

35

CHAREST, B.G.

27

AMY, V.P.

42

CHRISTMAN, S.P.

49

ANDRESS, C.J.

32

CLAYBOURNE, J.P.

49

AVERY, W.

30

CLINE, P.V.

40

BALLARD, S.S.

58

COLE, N.

44

BALTENSPERGER, D.D.

1,7,8

COLLAZO, W.

24

BANAS, S.

51

COLWELL, C.

58,60

BARNETT, R.D.

1,6

CONROW, R.

15

BEATTY, T.

19

COOPER, R.

44

BECKER, K.

44

COPPENGER, W.

44

BEDIGAN, K.

8

CORELLA, J.F.

4

BENNETT, J.M.

2

CRISMAN, T.L.

14,16,18,20

BIDJA, R.

6

CUERVO, L.A.

52

BITTON, G.

17,18

CURLEY, J.L.

23

BLACK, D.W.

38

CURREY, W.L.

5

BLANCHARD, P.N.

45

CUSICK, J.

10

BLOMBERG, B.

56

DANIEL, M.L.

39

BLUM, P.

28

DATILLO, J.B.

32

BORREMANS, N.T.

11

DAWES, C.J.

14

BOTTS, P.S.

31

DEEVEY, E.S.

21

BRAY, J.

58,60

DEGROOT, S.S.

53

BRENNAN, J.J.

58,59

DELFINO, J.J.

40

BRIGMON, R.L.

18

DEMEO, R.A.

43

BROWDER, J.S.

48

DESALVO, J.R.

48

BROWN, D.E.

39

DEYRUP, M.

50 '

BROWN, R.C.

37

DIERBERG. F.E.

37

BRUNIARD, G.C.

4

DINSMORE, B.A.

54

BUONI, F.B.

34

DIP, A.

35

BURKHALTER, S.B.

10

DODD, Jr., C.K.

27

BUSTILLO, J.J.

5

AUTHOR INDEX, continued

author

page

author

DONOHOE, M.

47

HINE, A.C.

45

,46

DOORIS, G.M.

30

HOCHMUTH, G.J.

1

DOORIS, P.M.

30

HODGE, C.H.

5

DOUGLAS, J.

18

HOENSTINE, R.

44

DUEDALL, I.W.

12

HOWARD, J.E.

59

DUFRESNE, D.P.

45

HOYER, M.V.

21

DUNN, R.A.

5,7

HUANG, Y.

48

EDWARDS, K,

20

HUCK, R.B.

50

EDWARDS, R.E.

19

HUETER, R.E.

28

EDWARDSON, J.R,

e

HUGHLETT, B.L.

32

EHRHART, L.M.

50

INMAN, R.C.

42

ELFERS, S.C.

50

JACKSON, M.L.

39

ESPAILLAT, J.R.

3

JENSON, E.

36

ESSIG, F.B.

31

JEREZ, R.A.

1

EVANS, D.L.

15

JONES, D.S.

45

EVANS, M.W.

45,46,57

JONES, J.K.

20

EVANS, R.K.

57

JOHANSSON, R.

30

,44

FARRAH, S.

18

JOHNSON, K.B.

36

FEMMER, R.H.

23

JOHNSON, Sr., R.C.

41

FISHER, A.T.

44

JOHNSON, W.G.

9

FLAIG, E.G.

38

KANTROWITZ, I.H.

41

FLYNN, M.C.

37

KEHL, M.J.

13,

,28

FLYNN, R.W.

48

KELLER, A.E.

18

FRAZEE, Jr., J.M.

37

KELLER, W.M.

57

FREED, G.

54

KINSER, P.D.

22

FREEMAN, R.W.

44

KING, T.J.

53

FRENCH, E.C.

1,5,7

KIRKLAND, E.R.

59

FRITZ, L.M.

32

KITNER, K.R.

11

GABRENYA, Jr., W.K.

55

KLOTZ, S.

47

' GALLAHER, R.N.

2, 3, 4, 5, 7

KOOPMAN, B.

17

1 GARDNER, C.S.

1

KOVACH, C.W.

31

1 GENNARO, R.

47

KRANC, S.C.

35

! GILBERT, P.W.

28

KRUEGER, B.A.

25

P GOLDSBY, T.

18

KUB, M.L.

32

i GONZALEZ, N.C.

3

LAHANAS, P.N.

27

1 GOP ALAN, R.

34

LASHLEY, T.H.

5

GORE, P.

32

LAWRENCE, J.M.

29,

31

GORZELANY, J.F.

28

LAWRENCE, P.

58,

60

1 GRAGG, B.

53

LAYNE, J.

26

1 GRANT, M.W.

48

LE GRAND, F.

7

GRAY, S.

40

LIM, D.

19

'GREEN, A.E.S.

56

LIN, J.T.

48

1 GUENTHER, D.D.

26

LINSLEY, J.

36

iGUILDAY, T.J.

43

LINTON, C.M.

32

i GUNS ALUS, B.E.

38

LIPOFSKY, B.J.

34

GUSEMAN, J.L.

50

LIVINGSTON, R.J.

24

HALL, D.W.

5

LLEWELLYN, R.A.

48

HALL, G.B.

22,23

LOFTUS, W.F.

15

HALVORSEN, M.A.

16

LOPES DA SILVA, P.

34

HANLON, E.A.

1

LOUMAKIS, D.

33

HARDMAN, K.R.

19

LOWE, E.F.

22,

23

HAYES, M.P.

27

LOWRIE, R.W.

4 3

HEIDELBAUGH, W.S.

19

LUER, C.A.

28

IHELLYAR, L.M.

32

MARTIN, B.B.

37

{HENDRICKSON, J.

22

MARTIN, D.P.

36,

37,39

'HENDRY, B.A.

10

MASON, Jr., W.T.

16

HENRY, M.S.

IHERNANDEZ, P.

37

32

MASSON, M.A.
MATA~TOLEDO, R.A.

9

33

iHIEBSCH, C.K.

6

MATHEWSON, R.D.

52

IHIEBSCH, O.E.

6

MAZDIJI, C.N.

17

HIMES, R.

58,60

MCCLAIN, M.E.

13

Florida Scientist
AUTHOR INDEX, continued

author

page

MCCLINTOCK, J.B.

29,31

MCGAREY, D.

19

MCKINNEY, S.

18

MCLAUGHLIN, R.E,

17

MEIER, H.

16

MILLER, H.A.

31

MILES, C.J.

40

MITCHELL, G.

48

MITCHEM, J.M.

9

MONTAGUE, C.L.

29

MONTAGUE, J.

24

MONTGOMERY, J.L.

48

MORENO, J.E.

7

MORRIS, J.G.

51

MORRISON, D.E.

22

MORTON, T.C.

32

MUELLER, P.A.

45

MUSSER, K.D.

59

MYTINGER-TYSON, L.

52

NACIONALES, M.A.

22

NARASIMHAN, T.N.

44

NEIDIG, C.L.

19

NEIL, J.S.

39

NELSON, W.G.

13

NORLUND, C.M.

17

NZEZA, K.

2

O'BRYAN, K.A.

3

O' CARROLL, T.

44

O' FERRELL, D.

36

OPPENBORN, J.B.

18

ORTIZ, R.A.

4

OUSTA, M.

32

OVERMAN, D.L.

2

PAYNE, C.

9

PATTERSON, J.D.

47

PATTON, G.W.

28

PERRY, B.S.

57

PFAHLER, P.L.

6

PHILLIPS, A.M.

48

PIERCE, R.H.

19,37

POLLEY, J.P.

58

POMEROY, R.P.

10

PRECHT, W.F.

13

PREECE, B.

58,59,60

PRICE, W.W.

16,25

PRINE, G.M.

1,6,7

PURCIFULL, D.E.

8

QUESENBERRY, K.H.

8

RADTKE, R.

27

RAICH, M.

55

RAY, G.L.

24

RAYMOND, M.A.V.

26

REICH, A.R.

44

REITH, P.E.

7

REYNOLDS, J.E.

26

RHODES, H.L.

42

RICH, J.R.

5,7

RITTER, G.J.

38

ROBERTSON, D.J.

15

ROMEO, J.T,

32

ROMIE, K.F.

21

62-

Volume

author

page

ROTHSTEIN, B.

51

RUDDELL, J.M.

42

SAVERCOOL, D.M.

13

SAGUES, A. A.

35

SCHLUETER, R.A.

16

SCHRADER, D.

53

SEACAT, L.

58

SEEBA, S.J,

48

SEQUEIRA, W.

46

SHEARER, R.L.

55

SHIEH, C-S.

12

SILVERBERG, D.J.

51

SIMON, A.

25

SIMON, A.

25

SINGLEY, J.E.

43

SMITH, M.A.

48

SMITH, S.

26

SMITH, W.L.

16

SNELL, T.W.

22

SNYDER, S.W.

46

SPRINKEL, J.M.

19

SQUIRES, A.P.

29,30,44

STEFANAKOS, E.

35

STOECKEL, R.W.

55

STOWERS, Jr., D.M.

12

SWEENEY, M.

47

TABB, N.D.

12

TEMSAMANI, N.

33

TE STRAKE, D.

19

THOMPSON, P.J.

54

THOMS, R.L.

24

TOMASKO, D.A.

14

TRANTHAM, W.

53

TRUSCOTT, M.

56

TURNER, R.L.

17,23,24

UPCHURCH, S.B.

39,41

UYANIK, M.

7

VAIL, B.

58,60

VANDERVEGT, F.P.

32

VARGAS, E.R.

48

VARGO, G.A.

12

VASSIL, D.

24

VIRNSTEIN, R.W.

13

VOLLWEILER, R.

11

WASSMER, D.A.

26

WEINBERG, M.

44

WHARTON, B.R.

30

WHITE, A.Q.

25

WHITE, C.E.

5

WHITE, R.

47

WHITMORE, T.J.

21

WILCOX, J.R.

26

WILHELM, R.

26

WITZ, B.W.

31

WOFFORD, D.S.

8

WOODARD, K.R.

6

YAO, M.

48

ZAM, S.G.

18

ZAYED, A.

35

ZHAO, G.S.

8

ZUNIGA, A. A.

52

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The University Of Tampa Campus Map

3 9088 01912 3470

LOCAL AREA MAP

For campus map, see inside cover.