NOAA Technical Report NMFS SSRF-710 Midwater Invertebrates from the Southeastern Chukchi Sea: Species and Abundance in Catches Incidental to Midwater Trawling Survey of Fishes, September-October 1970 Bruce L. Wing and Nancy Barr April 1977 U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administretion National Marine Fisheries Service NOAA TECHNICAL REPORTS National Marine Fisheries Service, Special Scientific Report — Fisheries The major responsibilities of the National Marine Fisheries Service (NMFS) are to monitor and assess the abundance and geographic distribution of fisherv- resources, to understand and predict fluctuations in thequantity and distribution of these resources, and to establish levels for optimum use of the resources. 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For sale by the Superintendent of Documents, U.S. Government Printing Office, Washington, D.C. 20402. 650. Effects of some antioxidants and EDTA on the development of ran- cidity in Spanish mackerel (Scomberomorus maculatus) during frozen storage. By Robert N. Farragut. February 1972, iv + 12 p., 6 figs., 12 tables. For sale by the Superintendent of Documents, U.S. Government Printing Office, Washington, D.C. 20402. 6.51. The effect of premortem stress, holding temperatures, and freezing on the biochemistry and quality of skipjack tuna. By Ladell Crawford. April 1972, iii + 23 p., 3 figs., 4 tables. For sale by the .Superintendent of Documents, U.S. Government Printing Office, Washington. D.C. 20402. 653. The use of electricity in conjunction with a 12.5-meler (Headrope) Gulf-of-Mexico shrimp trawl in Lake Michigan. By James E. Ellis. March 1972. iv + 10 p.. 11 figs.. 4 tables. For sale by the Superintendent of Documents. U.S. Government Printing Office. Washington, DC. 20402. 654. An electric detector system for recovering internally tagged menhaden, genus Brevoortia. By R. 0. Parker. Jr. February 1972. iii + 7 p.. 3 figs.. 1 app. table. For sale by the Superintendent of Documents, U.S. Government Printing Office, Washington, DC. 20402. 6.55. Immobilization of fingerling salmon and trout by decompression. By Doyle F. Sutherland. March 1972. iii -t- 7 p.. 3 figs.. 2 tables. For sale by the Superintendent of Documents. U.S. Government Printing Office. Washington, D.C. 20402. 656. The calico scallop, Argopecten gibbus. By Donald .M. Allen and T. J. Costello. May 1972. iii + 19 p.. 9 figs.. 1 table. For sale by the Superintendent of Documents. U.S. Government Printing Office. Washington. D.C. 20402. 662. Seasonal distribution of tunas and billfishes in the Atlantic. By John P. Wise and Charles W. Davis. January 1973. iv + 24 p.. 13 figs.. 4 tables. For sale by the Superintendent of Documents, U.S. Government Printing Office, Washington. DC. 20402. 663. Fish larvae collected from the northeastern Pacific Ocean and Puget Sound during April and May 1967. By Kenneth D. Waldron. December 1972, iii ■(- 16 p., 2 figs., 1 table. 4 app. tables. For sale by the Superintendent of Documents. U.S. Government Printing Oflice, Washington. D.C. 20402. 664. Tagging and tag-recovery experiments with Atlantic menhaden, Hrei'oortia tyrannus. By Richard L. Kroger and Robert L. Dryfoos. December 1972, iv + 1 1 p., 4 figs.. 12 tables. For sale by the Superinten- dent of Documents, U.S. Government Printing Office. Washington. D.C. 20402. 665. Lar\'al fish survey of Humbolt Bay, California. By Maxwell B. Eldrige and Charles F. Bryan. December 1972. iii -I- 8 p.. 8 figs.. I table. For sale by the Superintendent of Documents, U.S. Government Printing Office. Washington. DC. 20402. 666. Distribution and relative abundance of fishes in Newport River, North Carolina. By William R. Turner and George N. Johnson. September 1973. iv + 23 p.. 1 fig.. 13 tables. For sale by the Superinten- dent of Documents, U.S. Government Printing Office. Washington. DC. 20402. 667. An analysis of the commercial lobster {Homarus amencanusi fishery along the coast of Maine. August 1966 through December 1970. By James C. Thomas. June 1973. v + 57 p., 18 figs., 11 tables. For sale by the Superintendent of Documents, U.S. Government Printing Office, Washington. D.C. 20402. 657. Making fish protein concentrates by enzymatic hydrolysis. A status report on research and some processes and products studied by NMFS By Malcolm B. Hale. November 1972. v + 32 p., 15 figs.. 17 tables. 1 app. table. For sale by the Superintendent of Documents. U.S. Government Printing Office. Washington. D.C. 20402. 658. List of fishes of Alaska and adjacent waters with a guide to some of their literature. By Jay C. Qua.st and Elizabeth L. Hall. July 1972. iv + 47 p. For sale by the Superintendent of Documents. U.S. Government Printing Office. Washington. DC. '20402. 659. The Southeast Fisheries Center bionumeric code. Part I: Fishes. By Harvey R. Bullis. Jr.. Richard B. Roe. and Judith C. Gatlin. July 1972, xl + 95 p.. 2 figs. For sale by the Superintendent of Documents. U.S. Government Printing Office. Washington. D.C. 20402. 660. A freshwater fish electro-motivator (FFEM)-its characteristics and operation. By James E. Ellis and Charles C. Hoopes. November 1972. iii + 11 p.. 2 figs. 668. An annotated bibliography of the cunner. Tautogolabrus adspersux ( Wilbaum). By Fredric M. Serchuk and David W. Frame. May 1973. ii + 43 p. For sale by the Superintendent of Documents. U.S. Government Printing Office. Washington. D.C. 20402. 669. Subpoint prediction for direct readout meterological satellites. By L. E. Eber. August 1973. iii -I- 7 p., 2 figs., 1 table. For sale by the Superintendent of Documents, U.S. Government Printing Office, Washington, D.C. 20402. 670. Unharvested fishes in the U.S. commercial fishen.' of western Lake Erie in 1969. By Harr,' D. Van Meter. July 1973. iii -I- 11 p.. 6 figs., 6 tables. For sale by the Superintendent of Documents, U.S. Government Printing Office, Washington, D.C. 20402. 671. Coastal upwelling indices, west coast of North America, 1946-71. By Andrew Bakun. June 1973, iv + 103 p.. 6 figs., 3 tables, 45 app. figs. For sale bv the Superintendent of Documents, U.S. Government Printing Office, Washington. DC. 20402. flint inued on inside back I'over NOAA Technical Report NMFS SSRF- 710 MMOSP^, '■'Went of Midwater Invertebrates from the Southeastern Chukchi Sea: Species and Abundance in Catches Incidental to Midwater Trawling Survey of Fishes, September-October 1970 Bruce L. Wing and Nancy Barr April 1977 I ^/l Marine Biological Laboratory LIBRARY OCT 14 1992 Woods Hole, Mass. U.S. DEPARTMENT OF COMMERCE Juanita M^ Kreps, Secretary National Oceanic and Atmospheric Administration Robert M. White, Administrator National Marine Fisheries Service Robert W. Sctioning, Director For Sale by the Superintendent of Documents. U.S. Government Printing Office Washington, D.C. 20402 Stock No. 003-020-00130-1 The National Marine Fisheries Service (NMFS) does not approve, rec- ommend or endorse any proprietary product or proprietary material mentioned in this publication. No reference shall be made to NMFS, or to this publication furnished by NMFS, in any advertising or sales pro- motion which would indicate or imply that NMFS approves, recommends or endorses any proprietary product or proprietary material mentioned herein, or which has as its purpose an intent to cause directly or indirectly the advertised product to be used or purchased because of this NMFS publication. CONTENTS Introduction 1 Methods 1 Results 2 Discussion 2 Summary 6 Acknowledgments 6 Literature cited 6 Catch data 8 Figures 1. Positions and sequence of trawling stations during WEBSEC-70. Circles indicate stations where Isaacs-Kidd midwater trawl was used; squares indicate otter trawl was used. (From Quast 1972.) 2 Tables 1. List of invertebrates collected with 1.8-m Isaacs-Kidd midwater trawl in the southeastern Chukchi Sea during WEBSEC-70, 25 September- 17 October 1970 3 2. Partial listing of invertebrates from otter trawl samples off Point Lay, Alaska 5 Appendix Tables 1. Station data for WEBSEC-70 fish trawl stations (Quast 1972) 7 2. Catches of invertebrates by 1.8-m Isaacs-Kidd midwater trawl in the southeastern Chukchi Sea 7 111 Midwater Invertebrates from the Southeastern Chukchi Sea: Species and Abundance in Catches Incidental to Midwater Trawling Survey of Fishes, September-October 1970 BRUCE L. WING and NANCY BARR' ABSTRACT Midwater invertebrates were collected in the southeastern Chukchi Sea. A 1.8-m Isaacs-Kidd midwater trawl was used at 20 stations to collect 81 semiquantitative samples; a :!-m otter trawl was used at one station to collect two qualitative samples. Data tables list the species collected and their numbers, size range, and displacement volumes for the midwater trawl stations and a species list only for the otter trawl station. One hundred three species of invertebrates were identified from the mid- water trawl samples, and ,33 species were identified from the otter trawl samples. Amphipods were the most diverse group (40 species) and decapod shrimps the next most diverse (14 species). Numbers of species in a sample varied from 4 to 40 (mean 17). After removal of jellyfishes, the most important con- tributors in numbers and volume to the catches were euphausiids and mysids. INTRODUCTION The Western Beaufort Sea Ecological Cruises (WEB- SEC) were a sequence of oceanographic cruises spon- sored by the U.S. Coast Guard to assess the Alaskan arc- tic marine environment and biota before major indus- trial development. The Coast Guard enlisted the efforts of federal, state and university research groups for the program, and the National Marine Fisheries Service con- tributed to the first three cruises with studies of zooplankton, midwater invertebrates, and fishes. The intent of the first cruise, WEBSEC-70, which took place during September and October 1970, was to ex- amine the arctic coast from Barrow eastward to Barter Island. Extremely heavy ice conditions in mid-Septem- ber 1970 prevented the Icebreaker Glacier from working in the Beaufort Sea; therefore, an alternative area, the southeastern Chukchi Sea between Point Lay and Cape Lisburne (Fig. 1) was surveyed between 25 September and 17 October. Preliminary results of physical, chemical, geological, and biological investigations for WEBSEC-70 were reported by Ingham et al. (1972); and reports were later published by Quast (1974) and Wing (1974). This report presents data on the invertebrates taken in midwater trawls made to collect fishes from 25 Septem- ber to 17 October 1970. The data are presented in tabular form and are not interpreted, although some apparent sampling anomalies are discussed. The tables provide a list of species found, numbers of individuals taken, and linear size range and displacement volume of the 'Northwest and Alaska Fisheries Center .Auke Bay Laboratory, National Marine Fisheries Service, NOAA. P.O. Box 155, Auke Bay, AK 99821. specimens of each species. These data are the first attempts to quantitatively assess macroplanktonic and niicronektonic invertebrates in the southeastern Chuk- chi Sea. METHODS A 1.8-m Isaacs-Kidd midwater trawl was used to sample at 20 stations for a total of 81 tows (Fig. 1, Ap- pendix Table 1). The trawl had a forward section of 38- mm bar mesh, a rear section of 6-mm bar mesh, and a cod end of 3-mm bar mesh. Cross-sectional areas were calculated to be 2.87 m' at the mouth, 1.55 m' at the beginning of the 6-mm mesh, and 0.13 m- at the begin- ning of the 3-mm mesh. The depth of tow was recorded by a bathykymograph attached to the bottom of the depressor. Tows were standardized for a length of 3.7 km at an estimated vessel speed of 4 knots. At least four tows were made at each of the 20 stations, two on one bearing and two on the reciprocal bearing. Trawling was general- ly done at night in areas relatively free of ice. The choice of sampling depths was dependent on water depths and on whether or not the samples were intended to be replicates or were to examine depth distributions (Quast 1974). At one station (No. 8— Fig. 1) two trawls were made with a 3-m, 38-mm mesh otter trawl (shrimp try net) to collect bottom fishes and invertebrates. Large scyphomedusans and most hydromedusans taken in the trawls were discarded in the field after the sizes and numbers of each species of scyphomedusan and the volumes of hydromedusans had been recorded. The other invertebrates were preserved in 5'"c Formalin. In preparation for examining the invertebrates in the laboratory, formalin was washed from the samples and 168° 161° 162° START ,,1 IV' •0-V-^- ■tPli- /? '.o\ © " ' fjO SEPT V^y ^ /-■ X 0. > 3 .a S ttj ^ tB - 'H ^ o ca ^ ^^z s CM CO s t-' 3 o' iC ■^' CO c~ CM CM r- to" en eg' iC ic' ci CM CO Oi - _^- ^ CM ^ CO . O iC o' 04 o 00 CO C^) ^ CM o" CO 00 00 - 05 cm' CO 00 . lO CD CO o o O eg OO' "J 'I- 00 CM CO OO CO -I- —' CM Ol CO 00 o O) t- CD CM CM o o lO to CD 2 s CO CO Jo S O ss CM ■^ CO 0-1 UO CO o s •I- eg t- CO CO S! 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CLASS Subclass (It'nus species CLASS Subclass (reniis species GASTROPODA Biiccintim sclarifnrme Mtiller Mnrgarilnpsis prihiloffensis (Dall) Dendrunotiis dalli Bergh BIVALVIA Miisculus discnrs (Linnaeus) Yoldia scissiifata Dall Serripcs f^roenlandicus (Bru^gen) Mya truncata Linnaeus MALACOSTRACA Mysidacea \fysis oculata and/or M. litoralis Neomysis rayii (Murdock) Isopoda Tecticeps alaskensis Richardson Synidotea hicuspida (Owen) Amphipoda Anonyx nugax (Phipps) Tryphosa sp. Acanthostepheia behringiensis (Lockington) Paroediceros lynceus (M. Sars) I'rotomcdia fiisctntn Kriiiyer Ischynn-crus latipes Krsiyer /. mvfialaps Sars Kriclhonius difformis M. Kdwarris E. tolli Bruggen I'leustt's pnntipta (Krv^yer) Rhocotrnpis actiU'ata (LepechinI DiiHchia spinnssisma Krrfyer Decapoda Pandcitus utmiurus Stimpson Eualus fahricii (Kr»(yer) E. naimardii (M. Edwards) l.ehheus gnienlandicus (.). C. Fahricius) Spinontncaris phippsii (Krtlyer) Arnis lar (Owen) Sclerocran^on horeas (P)iippsl llyos coarctcUus Leach Pniiurus tri^imnvheirus (Stimpson) ASCIDIACEA BoUenia ovifera (Linnaeus) though the resulting catches should be considered only as semiquantitative, they do provide indicators of the kinds and general quantities of midwater invertebrates present in the southeastern Chukchi Sea. The terms mesoplankton, macroplankton, micronek- ton, and benthos may be applied to various grouping of invertebrates collected with the Isaacs-Kidd midwater trawl in the Chukchi Sea during WEBSEC-70. None of the terms are precisely defined, but they provide criteria for evaluation of catches by those who may wish to com- pare the species and quantities reported in Appendix Table 2 with other sets of data. Mesoplankters are zooplankters quantitatively retain- ed by a 0.2-mm mesh net and having a total body length less than 10 mm. Large mesoplankters are those with a body length greater than 1 mm. The midwater trawl used during WEBSEC-70 did not quantitatively retain large mesoplankters, as evidenced by the low frequency and small numbers of copepods Calanus finmarchicus s.l. and Eucalanus bungii and the chaetognath Sagitta elegans in the catches. These mesoplankters were widely distributed and abundant in plankton samples taken with a 0.57-mm mesh plankton net during the same cruise (Wing 1974). Animals of the macroplankton and micronekton are large enough to be identified with the naked eye. There is no upper size limit and the lower size limit (5-10 mm long) is dependent on the taxa involved and the knowl- edge of the researcher. Animals of the micronekton are 10-100 mm long and can swim well enough to avoid stan- dard 1-m plankton nets. Because the swimming ability of crustaceans, cephalopods, and fishes increases with size, macroplankton and micronekton are not precisely defin- ed or clearly separable categories. Within the size range of macroplankton and micronekton, the midwater trawl used during WEBSEC-70 would collect quantitatively only the large scyphomedusans and the hydromedtisan Cuspidella mertensii. Although herding occurs, much of the macroplankton and micronekton passes through the 6- and .38-mm meshes at the front of the net. Many of the hydromedusan Aglantha digitale, the euphausiids, and the mysids undoubtedly passed through the net, al- though these were the most abundant organisms in the catches (Appendix Table 2). The retention of macroplankton- and micronekton-sized medusans, amphipods, mysids, euphausiids, and shrimps by the midwater trawl used during WEBSEC-70 indicates that they were quite abundant and important in the trophic structure of the area but does not measure their abun- dance. Many of the species collected by the midwater trawl in the Chukchi Sea are considered to be benthic animals, i.e., they live on (epibenthos), in (endobenthos), or just off (hyperbenthos) the bottom. Many of the benthic animals, especially polychaetes, mysids, cumaceans, gammarid amphipods, and shrimps, may leave the bot- tom at night and become part of the macroplankton and micronekton. Except for stations 8 and 14 (Table 1), all sampling was at night: consequently some benthic animals were well represented in the collection. The shallowness of the area (22-54 m) sampled by WEBSEC-70 contributed to the occurrence of benthic animals in the midwater trawl catches. Benthic animals, which rise off bottom at night, are likely to contribute more to the macroplankton and micronekton in shallow waters than in deeper waters. Additionally, wave-in- duced turbulence and ice rafting may have placed in sus- pension some endobenthos (i.e., benthic snails, sipun- culids, and echiuroids), which would not normally be off bottom. The net struck bottom only on station 88. Samples from that station contained two species of snails (Margarites sp. and Natica clausa), a clam {Nucuia tenuis), adult hermit crabs {Pagurus sp.), and brittle stars (Ophiuroidae) in addition to more usual plank- tonic species (Table 1, Appendix Table 2). SUMMARY One hundred three species of invertebrates were taken in Isaacs-Kidd midwater trawl samples from the southeastern Chukchi Sea during WEBSEC-70. Thirty- three species were taken by otter trawl. Numbers of in- vertebrate species in a midwater trawl sample varied from 4 to 40 (mean, 17). Amphipods were the most varied group (40 species) and shrimps the next most varied group ( 14 species). After removal of hydroid and scyphozoan jellyfishes, euphausiids and mysids contributed the most to the biomass and numbers of the midwater invertebrates retained by the midwater trawl. ACKNOWLEDGMENTS We thank Alexander Hoke for the design and execution of the computer program for Appendix Table 2. We thank the U.S. Coast Guard Oceanographic Unit and the Marine Sciences section of the Icebreaker Glacier for assistance in collection of samples from the Chukchi Sea at a time of the year not previously sam- pled. LITERATURE CITED BANNER, A. H. 1948a. A taxonomic study of the Mysidacea and Euphausiacea (Crustaceal of the northeastern Pacific. Part I. Mysidacea from family Lophogaslridae through tribe Erthropini. Trans. R. Can. Inst. 26:345-399. 1948b. A taxonomic study of the Mysidacea and Euphausiacea (Crustacea) of the northeastern Pacific. Part 11. Mysidacea, from tribe M.vsini through Mysidellinae. Trans. R. Can. Inst. 27:65- 125. 1950. A taxonomic study of the Mysidacea and Euphausiacea (Crustacea) of the northeastern Pacific. Part III. Euphausiacea. Trans. R. Can. Inst. 28:1-63. 1954. New records of Mysidacea and Euphausiacea from the north- eastern Pacific and adjacent areas. Pac. Sci. 8:125-139. BARNARD, .J. L. 19.58. Index to the families, genera, and species of the gammaridean Amphipoda (Crustacea). Allan Hancock Found. Publ.. Occas. Pap. 19. 145 p. 1962a. Benthic marine Amphipoda of southern California: Fami- lies Aoridae, Photidae, Ischyroceridae, Corophiidae, Podoceridae. Pac. Nat. 3:3-72. 1962b. Benthic marine Amphipoda of southern California: Fami- lies Tironidae to (lammaridae. Pac. Nat. 3:73-115. 1962c. Benthic marine Amphipoda of southern California: Family Oedicerotidae. Pac. Nat. 3:351-371. 1964. Revision of some families, genera, and species of gammari- dean Amphipoda. ("rustaceana 7:49-74. 1973. Revision of Corophiidae and related families (Amphipoda). Smithson. Contrib. Zool. 151, 27 p. BOBEN. B. P.. M. W. .lOHNSON, and E. BRINTON. 1955. The Euphausiacea (Crustacea) of the North Pacific. Bull. Scripps Inst. Oceanogr. 6:287-400. BOWMAN. T. E. 1973. Pelagic amphipods of the genus Hyperia and closely related genera (Hyperiidea: Hyperiidae). Smithson. Contrib. Zool. 136, 76 p. 1960. The pelagic amphipods of the genus Parathemisto (Hyperii- dea: Hyperiidae) in the North Pacific and adjacent Arctic Ocean. Proc. U.S. Natl. Mus. 112:343-392. BRODSKII. K. A. 1950. Calanoida of the far eastern seas and polar basin of the USSR Keys to the fauna of the USSR, No. 35. Zool. Inst. .Acad. Sci. USSR, 440 p. (Translated by Israel Program for Scientific Transl., 1967.) COE, W. R. 1904. The nemerteans of the expedition. In Harriman Alaska Expedition Vol. 11, Part 1, p. 1-110. Smithson. Inst., Wash., D.C. 1905. The nemerteans of the west and northwest coasts of North America. Bull. Mus. Comp. Zool. Vol. 47. 319 p. DAW.SON, J. K. 1971. Species of Arctic Ocean chaetognaths. In H. E. Kobayashi (editor), Taxonomic guides to arctic zooplankton (III). Univ. South. Calif. Dep. Biol. Sci. Tech. Rep. 4:1-21. DUNBAR, M. J. 1954. The amphipod Crustacea of Ungava Bay, Canadian eastern Arctic. J. Fish. Res. Board Can. 11:709-798. GUR.JANOVA, E. F. 1951. Amphipoda-Gammeridea of the seas of the USSR and ad- joining waters (In Russ.). Opred. Faune SSSR, Inst. Aka. Nauk 41, 1029 p. HOLMQUIST, C. 1959. Problems on marine-glacial relicts — on account of investiga- tions on the genus Mysis. Berlingska Boktrycheriet, Lund, 270 p. 1965. The amphipod genus Pseudalibrotus. Zeit. Zool. Syst. Evolforschung. 3:19-46. INGHAM, M. C, B. A. RUTLAND, P. W. BARNES, G. E. WATSON, G. J. DIVOKY, A. S. NAIDU, G. D. SHARMA, B. L. WING, and J. C. QUAST. 1972. WEBSEC-70, an ecological survey in the eastern Chukchi Sea, September-October 1970. U.S. Coast Guard Oceanogr. Rep. 50 (CG373-50), 206 p. LEUNG, Y-M. 1971. Pteropodsof the central Arctic, /n H. A. Kobayashi (editor), Taxonomic guides to Arctic zooplankton (III). Univ. South. Calif. Dep. Biol. Sci. Tech. Rep. 4:22-28. MacGINITIE. G. E. 1955. Distribution and ecology of the marine invertebrates of Point Barrow. Alaska. Smithson. Misc. Collect. 128:1-201. MacGINITIE, N. 19.59. Marine Mollusca of Point Barrow. Ala-ska. Proc. U.S. Natl. Mus. 109:59-208. McCAULEY, J. E. 1964. A preliminary report of the benthic animals collected on the USCG Northwind cruise during 1962. In Oceanographic Cruise USCGC Northwind. Bering and Chukchi Seas, July-Sept. 1962, p. 17-22. U.S. Coast Guard Oceanogr. Rep. 1. (CG 373-1). McEWEN, G. F., M. W. .JOHNSON, and T. R. FOLSOM. 19,54. A statistical analysis of the performance of the Folsom plank- ton sample splitter, based upon test observations. Arch. Meteorol., Geophys. Bioklimatol., Ser. A. Meterol. Geophysik 7:502-527. NAIDU, A. S., and G. D. SHARMA. 1972. Geological, biological, and chemical oceanography of the eastern central Chukchi Sea. In Ingham et al. (editors). WEB- SEC-70, an ecological survey of the eastern Chukchi Sea, Septem- ber-October 1970, p. 173-195. U.S. Coast Guard Oceanogr. Rep. .50 (CG 373-50). NAUMOV, D. V. 1960. Hydroids and Hydromedusae of the USSR. Keys to the fauna of the USSR. Zool. Inst. Acad. Sci. USSR. 70. (Translated by Israel Program for Sci. Trans., 1969.) QUAST. J. C. 1972. Preliminary report on the fishes collected on WEBSEC-70. In Ingham et al. (editors), WEBSEC-70, an ecological survey in the eastern Chukchi Sea, September-October 1970, p. 203-206. U.S. Coast Guard Oceanogr. Rep. 50 (CG 373-50). 1974. Density distribution of juvenile Arctic cod, Boreogadus saida, in the eastern Chiikihi Sea in the fall of 1970. Kish. Hull., U.S. 72:1094-110.^. RATHBIIN. M. J. 1904. Decapod crustaceans of the northwest coast of North Amer- ica, /n Harriman Alaska Rxpedition 10:1-210. Smithson. Inst., Wash., D.C. SARS. G. 0. 1895. An account of the Crustacea of Norway. Vol. 1, Arnphipoda. Chri.stiana and Copenhagen, 711 p. 1900. Cru.stacea. In Fridtjof Nansen (editor). The Norwegian north polar expedition 1893-1896, 1 (Part 5):1-141. Longmans, Green, and Co.. Lond. SHOEMAKER, C. R. 19.5.5. Arnphipoda collected at the Arctic laboratory. Office of Naval Research, Point Barrow, .Maska, by G. E. MacGinitie. Smithson. Misc. Collect. 128:1-78. SI'AHKS, A. K., and W. T. PKREYRA. Hlfifi. lienthic invertebrates of the southeastern Chukchi Sea. In N. •). Wilimovsky and .1. N. Wolfe (editors). Environment of the Cape Thompson region, Ala.ska, p. 817-8.38, USAEC, Wash., D.C. vanhOfff;n, e. 190fi. Acraspedae Gegenbauer 1856. Nordischcs Plankton, Zoolo- gi.scher Teil, 5, XI:40-64. [Vol. 6, 19.33.] WING. B. L. 1974. Kinds and abundance of zooplankton collected by the USCG icebreaker (lluciir in the eastern Chukchi Sea, September-Octo- ber 1970. U.S. Dep. Commer., NOAA Tech. Rep. NMFS SSFR- 679. 18 p. ZIMMER, C. 1926. Northern and Arctic invertebrates in the collection of the Swedish State Museum (Riksmuseum). X. Cumaceen. K. Sven- ska. Vetenskapsakad. Handl. Ser. 3, 3(2):l-88. Appendix Table 1.— Station data for WEBSEC-70 fish trawl stations (Quast 1972). Dataai id inclusive Approximate position Depth of water Ha luls Sta- tion time (Bering Standard) Lat.N Long. W (m) No. Type' and depths (m)' 8 Sept. 25 (1115-1253) 69° 45' 163°34' 26 2 B 26.26 10 Sept. 27 (1917-2207) 70°04' 165°57' 44 R 11 14 Sept. 29 (0518-0817) 70n7' 165°02' 51 R 11 16 Sept. 29 (1721-2002) 70° 16' 163°58' 53 R 11 20 Sept. 30 (1740-2025) 70°20' 163°24' 42 R 12 22 Oct. 1 (1734-2103) 70°20' 163°25' 35 R 12 25 Oct. 2 (1731-2036) 70°07' 163° 14' 33 R 12 30 Oct. 4 (1756-2137) 69° 58' 164°07' 31 M 2,5,10, 13, 19 32 Oct. 5 (1831-2104) 69°48' 163°49' 26 R 12 37 Oct. 6 (1727-1956) 70°07' 167°36' 49 R 12 41 Oct. 7 (1752-2014) 69°57' 167°3r 44 M 10, 10, 12, -22 45 Oct. 8 ( 1816-2058) 69°57' 168°38' 44 M 2. 9, 13, 20 51 Oct. 9 (1744-2024) 69°36' 167°36' 48 M 2, 7, 14, 20 56 Oct. 10 (1940-2229) 69°14' 166°53' 44 M 2, 9, 18, '23 61 Oct. 11 ( 1755-2015) 69°05' 166°13' 29 M 8. 13, 16, 23 65 Oct. 12 (1755-2016) 69°21' 166°45' 36 M 8, 13. 16, 22 70 Oct. 13 (1735-1958) 69°12' 167°38' 39 M 8,13,18,22 74 Oct. 14 (1723-1946) 69°35' 164°29' 22 M 2, 8, 13, 18 80 Oct. 15 (1814-2055) 69°27' 164°43' 30 M 2, 8, 13. 22 88 Oct. 16 ( 1917-2205) 68°55' 166°47' 45 M 2,11,24,40-45 92 Oct. 17 (1733-2014) 68°.36' 167°41' 54 M 2,13,17,-33 'Hauls approximately 30 min at depth; all hauls except those at station 8 were made with a 6-foot diameter Isaacs-Kidd trawl with 76-mm (stretched measurement) webbing and 13-mm liner. Hauls at station 8 were made on bottom with a shrimp try net, with 10-foot opening and 38-mm webbing. M = multidepth hauls with 6-foot Isaacs-Kidd trawl, B = shrimp try net on bottom, and R = replicated hauls at single depth with 6-foot Isaacs-Kidd trawl. Depth of footrope or depressor. Appendix Table 2.— Catches of invertebrates by I.S-m Isaacs-Kidd midwater trawl in the southeastern Chukchi Sea. NOTES: Mysis Utoratis and Mysis oculata both occur in the samples but were not tallied separately and therefore are listed as Mysis oculatallitoralis. Size ranges are total body length exclusive of antennae, rostra, and tentacles for most animals except: carapace length of decapod shrimp and bell diameter of medusans. CATCHtb OF INVEHTEBRATES BY 1.8 METtH ISAACS-KIOn MID WATEt^ TkAoL IN THE 50UTMEASTEHN CmurCHI SEA NUMbENt SIZE-HANGE. AND DISPLACEMENT VOLUME FOR FACM HALF-HOUH TOw station: iO DATE: SEP 27 1970 LATITUDEl 70 4 0 NOPTH LONGITUDE: 165 57 0 KEST haul: 1 depth: 11 METEPS TIME: 19:50 SPECIES IDENTIFICATION AOLANTHA DIGITALS CUSPIDELLA MEPTENSII CVANEA CAPILLATA ECHlUHUb ECHIUPUS ALASKANUS CLIONE LIMACINA SAGITTA ELEGANS CALANUS FINMARCHICUb S.L. NtOMYSIS KAYII PAHATHEMISTO LIBELLULA PSEUOALlBHOTUS GLACIALIS PSEUOALIBHOTUS NANSENI THYSANOESSA INEKMIS ThYSANOESSA RASCHII PANDALUS GONIURUS PANDALUS SP. HIPPOLYTIUAE bP. BHACHYURA - ME6AL0PA PAGURIDEA ZOEA PAGURIDEA GLAUCOTHOE NBR. INDIVIDUALS PER SAMPLE 0 2 2 1 1* 3 5 1 2 2 8 94 490 147 6 2 748 127 5 SIZE RANGE VOLUME (MM) (CO .. . 20.0 .- - -- --. — . — 10.0 20,00- 24.00 .- 29.00 -- 14.00- 21.00 -- 12.00- 14.00 -- 8.00- 17.00 -- 8.00- 20.00 4.0 7.00- 24.00 12.0 2.00- 15.00 21.0 .. 3.00 -- .- 3.00 -- 10.0 CATCHES OF INVEKTtHKATES BY 1.8 METER ISAACS-KIOn MID WATER THAwL IN THE SOUTHEASTERN CHUKCHI SEA NUMBEHt SIZE-RANGE. AND DISPLACEMENT VOLUME FOR EACH HALF-HOUK TOW station: 10 DATE: SEP 27 1970 LATITUDE: 70 4 0 NORTH LONGITUDE: Ibb 57 0 WEST haul: 2 depth: U meters time: 20:38 SPECIES IDENTIFICATION CUSPIUELLA MEHTENSII CHRYSAORA MELANASTER CYANEA CAPILLATA ECHIURUb ECHIURUS ALASKANUS CLIONE LIMACINA CALANUS FINMAWCHICUS S.L. NEOMYSIS RAYII MYPERIA MEOUSARUM GAMMARUS wILKITZKII MAERA SP (7 OANAE) PSEUDALIBROTUS GLACIALIS PSEUDALIBHOTUS NANSENI THYSANOESSA INERMIS THYSANOESSA RASCHII PANDALUS GONIURUS EUALUb GAIMAHDII riKACHYURA - MEGALUPA PAGURIDEA ZOEA NBR. INDIVIDUALS PER SAMPLE 6 8 16 4 6 1 4 2 1 1 1 1 2260 870 138 2 370 120 SIZE RANGE VOLUME (MM) (CO • - • _• • _ 150.00-: 300.00 — 40.00-i JOO.OO ^_ v_ — 4.00 -- 29.00- 35.00 -- 11.00- 18.00 — -- 14.00 -- .- 15.00 — -_ 12.00 -- -- 17.00 -- 10.00- 25.00 141.1 8.00- 25.00 35.3 3.00- 14.50 42.5 6.50- 7.00 0.5 CATCHtS OF INVE.HTEBRATES BY 1.8 METtK ISAACS-KIDO MID WATEH TKAWL IN THE SOUTHEASTEHN CHUKCHI SEA NUMbEHt SIZE-HANGE. AND DISPLACEMENT VOLUME FOR EACH HALf-HOUM TO* station: iO DATEl SEP 27 1970 LATITUDEl 70 4 0 NOHTH LONSITUOE: 165 57 0 WEST HAULI 3 DEPTHI 11 METERS TIME: ?1I25 SPECIES IDENTIFICATION AOLANTHA UI6ITALE CUSPIDELLA MEHTENSII AUHELIA AUHITa CYANEA CAPILLATA ECHIUHUS ECHIURUS ALASKANUS CLIONE LIMACINA NEOMYSIS WAYIl APHERUSA GLACIALIS GAMMAHUb KILKIT^KII PSEUDALIBHOTUS NANSENI THYSANOESSA INEHMIS THYSANOESSA RASCHII PANDALUS liONIURUS EUALUS GAIMAROII EUALUS STONEYI HIPPOLYTIOAE SP. BRACHYURA - MEGALOPA PAGURIDEA ZOEA NBR. INDIVIDUALS PER SAMPLE 0 4 1 e 3 4 1 1 3 3 1531 747 152 1 1 1 137 100 SIZE RANGE (MM) VOLUME (CO 14.1 -_ 60.00 -- 60.00-220.00 -- -_ -- -- -_ -. -. — 30.00 — — 12.00 — 20.00- 23.00 -- 11.00- 20. (JO -- 10.00- 22.00 -- 10.00- 20. UO 96.8 3.00- 13.00 22.0 .- 6.00 -- .. 8.00 0.4 -. 2.50 — CATCHES OF INVERTEBRATES BY 1.8 METER ISAACS-KIOD MID WATER TRAWL IN THE SOUTHEASTERN CHUKCHI SEA NUMBER. SIZE-HANGEi AND DISPLACEMENT VOLUME FOR EACH HALF"-HOUR TO* station: 10 date: SEP 27 1970 LATITUDE: 70 4 0 NORTH LONGITUDE: 165 57 0 WEST haul: 4 DEPTH! 11 METERS TIME: 22107 SPECIES IDENTIFICATION NBR. INDIVIDUALS PER SAMPLE SIZE RANGE (MM) VOLUME (CO AGLANTHA DIGITALS CUSPIDELLA MERTENSH AURELIA AURITa CHRYSAORA mELANASTER CYANEA CAPILLATA ECHIURUS ECHIURUS ALASKANUS CLIONE LIMACINA SAGITTA ELEGANS CALANUS CRISTATUS MYSIS POLARIS NEOMYSIS RAYII APHERUSA GLACIALIS PSEUOALIBROTUS GLACIALIS PSEUDALIHROTUS NANSENI TMYSANOESSA INERMIS THYSANUESSA RASCHII PANDALUS GONIURUS BRACHYURA - ZOEA BRACHYURA - MEGALOPA PAGURIDEA ZOEA PAGURIOEA GLAUCUTHOE 0 1 1 1 9 17 5 2 1 1 2 1 0 3 287 213 207 1 130 70 3 18.0 — - 60.00 — - 90.00 40.00-180.00 — - 9.00 31.00- 37.00 ~ - 12. UO 10.00- 19.00 12.00- 26.00 9.00- 22. UO 3.00- 14.00 CaTChtS OF INVEHTEBHATES BY 1.8 METER ISAACS-KIDO MID HATEH THAdL IN THE SOUTHEASTERN CHUKCHI SEA NUMbEKf SIZE-HANGE» AND DISPLACEMENT VOLUME FOR FACH MaLF-hOUR TOW STATION! U DATEl SEP 29 1970 LATITUDE: 70 17 0 NORTH LONGITUDE: 165 2 0 WEST haul: 1 depth: 11 METERS TIME: 05:48 SPECIES IDENTIFICATION NBR. INDIVIDUALS SIZE RANGE PER SAMPLE (MM) VOLUME (CO AGLANTHA DIGITALE CUSPIDELLA MEHTtNSII AURELIA AURITa CYANEA CAPILLATA ECHIURUS tCHluRUS ALASKANUS CLIONE LIMACINA SPIRATELLA HELICINA HYPERIA MEDUSARUM APHERUSA GLACIALIS GAMMARUS KlILKITZKII GAMMARUS ZADDACHI PbEUDALIBROTUS GLACIALIS ThYSANOESSA RASCHII PANDALUS GONlURUS BHACHYURA - ZOEA BRACHYURA - MEGALOPA PAGURIDEA ZOEA PAGURIDEA GLAUCOTHOE 0 6 1 3 1 1 1 1 6 7 1 I 1 1 9 120 45 2 350.0 -- -120.00 — - 60.00 30.00-220.00 .- 11.00 9.00- 10.00 17.00- 36.0 0 .- 6.00 _. 15.00 .. 8.00 -- 11.00 1.5 0.8 CATCHES OF INVERTEBRATES BY 1.8 METER ISAACS-MDD MID WATER TRA»L IN THE SOUTHEASTERN CHUKCHI SEA NUMBER. SIZE-RANGE. AND DISPLACEMENT VOLUME FOR FACH HALF-HOUR TOW STATION! U DATE: SEP 29 1970 LATITUDE! 70 17 0 NORTH LONGITUDE! 165 2 0 WEST HAUL! 2 DEPTH! 11 METERS TIME! 06!30 SPECIES IDENTIFICATION AGLANTHA DIGITALE CUSPIDELLA MERTENbll CYANEA CAPILLATA CLIONE LIMACINA HYPERIA MEDUSARUM PbEUDALIBROTUS NANSENI BRACHYURA - ZOEA BHACHYURA - MEGALOPA PAGURIDEA ZOEA PAGURIDEA GLAUCOTHOE NBR. INDIVIDUALS SIZE RANGE VOLUME PER SAMPLE (MM) (CO 0 337.0 1 — - 60.00 — 2 80.00-120.00 -- 1 • • « .. >* 1 — - 19.00 -- 3 16.00- 17.00 — a • • . -- • * 39 — - — -~ 54 -_ -- 3 -- -- CATCHES OF INVERTEBRATES BY 1.8 METER ISAACS-KIOD MID WATER TRAWL IN THE SOUTHEASTERN CHUKCHI SEA NUMBER. SIZE-RANGE. AND DISPLACEMENT VOLUME FOR FACH HALF-HOUR TOW STATION! U DATE! SEP 29 1970 LATITUDE: 70 17 0 NORTH LONGITUDE! 165 2 0 WEST HAUL! 3 DEPTH! 11 METERS TIME! 07!35 SPECIES IDENTIFICATION AGLANTHA DIGITALE AURELIA AURITa CLIONE LIMACINA APHERUSA GLACIALIS GAMMARUS ZADDACHI PSEUOALIBROTUb GLAClALIb PbEUDALIBROTUS NANSENI BRACHYURA - ZOEA BRACHYURA - MEGALOPA PAGURIDEA ZOEA PAGURIDEA GLAUCOTHOE NBR. INDIVIDUALS SIZE RANGE VOLUME PER SAMPLE (MM) (CO 0 _• . .. 35.0 2 50. ( DO- 80.00 — 5 -- - -- -- 1 — - 10.00 .- 1 -. - 27.00 • - 1 -_ - 13.00 -- 1 -- - 19.00 -- 22 -- - -- -- 275 -- - — 3.6 118 -- - -- 1.8 18 -- - -- -- 10 CATCHtS OF INVfcHTEBHATES BY 1.8 MtTER ISAACS-KIDn MID WATEH THAWL IN THE SOUTHtASTEHN CHUKCHI SEA NUMBEWt SIZt-HANGE. AND D I St^L ACEMENT VOLUME FOR EACH HALF-HOUH TOW station: U UATE: SEP 29 1970 latitude: 70 17 0 NOHTH LONGITUDE: 16S 2 0 WEST haul: 1 .. 12.00 -- 2 17.00- 23.00 -- 7 8.00- 20.00 — 12 3.00- 15.00 14.0 4 6.00- 7.00 1.4 3 3.00- 18.00 7.0 243 -. -- " 102 .- .- .- 63 .- -- — CATCHES OF INVERTEBRATES BY 1.8 METER ISAACS-KIDD MID WATER TRAWL IN THE SOUTHEASTERN CHUKCHI SEA NUMBEKt SIZE-RANGE. AND DISPLACEMENT VOLUME FOR EACH HALF-HOUR TOW STATIONI 37 DATEl OCT 6 1970 LATITUDEl 70 7 0 NORTH LONGITUDEI 167 36 0 WEST HAULI 1 DEPTHI 12 METERS TIMEI 17157 SPECIES IDENTIFICATION AGLANTHA DIGITALS CUSPIDELLA MERTENSII AURELIA AURITA CHRYSAORA MELANASTER CYANEA CAPILLATA CLIONE LIMACINA DIASTYLIS GLABRA RHACHOTROPSIS ACULEATA GAMMARUS WILKITZKII ACANTHOSTEPHIA BEHR INGIENS I S THYSANOESSA INERMIS THYSANOESSA RASCHII ARGIS LAR BRACHYURA - MEGALOPA PAGURIDEA ZOEA PAGURIDEA GLAUCOTHOE NBR. INDIVIDUALS PER SAMPLE 8 9 1 135 4 9 SIZE RANGE VOLUME (MM) (CO • • • -• 50.0 — -120. UO -- -- - 60.00 -- — -300.00 -- 50.00-170.00 -- -« • -• -- — - 7.00 — " - 25.00 — " - 15.00 -- -• « •- • - 15.00- 19.00 — 8.00- 20.00 -- " - 3.00 -- 21 CATCHES OF INVERTEBRATES BY 1.8 METER ISAACS-KIDn MIO WATER THAWU IN THE SOUTHEASTERN CHUKCHI SEA NUMBERi SIZE-RANGE. AND DISPLACEMENT VOLUME FOR EACH HalF-hOUR TOW STATIONI J7 DATEl OCT 6 1970 LATITUDEl 70 7 0 NORTH LONOITUDEl 167 36 0 WEST MAULI 2 DERTHI 12 METERS TIMEI 18135 SPECIES IDENTIFICATION AGLANTHA OIGITALE CUSPIUELLA MERTENSII AURELIA AUHITA CTANEA CAPILLATA STOMPHIA bP. EUSYLLIS (7) SP. GLYCINDE SP. MYSIS OCULATA/LITORALIS HYPERIA GALBA RHACMOTROPSIS ACULEATA THYSANOESSA INERMIS THYSANOESSA RASCHII BRACHYURA - MEGALOPA NBR. INDIVIDUALS PER SAMPLE SIZE RANGE (MM) VOLUME (CO 0 3 1 15 2 ~ - 60.00 60.00-270.00 50.0 1 .. -- 1 1 1 1 1 3 4 — - 30.00 — - 10.00 " - 20.00 — - 19.00 6.00- 20.00 — CATCHES OF INVERTEBRATES BY 1.8 METER ISAACS-KIDn MID WATER TRAWL IN THE SOUTHEASTERN CHUKCHI SEA NUMBERt SIZE-RANGEt AND DISPLACEMENT VOLUME FOR EACH HALF-HOUR TOW STATIONI 37 DATEl OCT 6 1970 LATITUDEl 70 7 0 NORTH LONGITUOEI 167 36 0 WEST HAULI 3 depth: 12 METERS TIMEI 19115 SPECIES IDENTIFICATION AGLANTHA OIGITALE CHRYSAORA MELANASTER CYANEA CAPILLATA AXIOTHELLA (7) CLIONE LIMACINA PSEUDALIBROTUS NANSENI THYSANOESSA INERMIS THYSANOtSSA RASCHII BRACHYURA - ZOEA BRACHYURA - MEGALOPA PAGURIDEA ZOEA PAGURIDtA GLAUCOTHOE NBR. INDIVIDUALS SIZE RANGE VOLUME PER SAMPLE (MM) (CO 0 .. 30.0 1 " -300.00 — T 50.00-100. 00 -- 1 .. -- 1 .. .- 2 12.00- 18.00 0.3 2 18.00- 21.00 -• 10 16.00- 22.00 — 1 • * > — * • • 29 — - — -- 6 -- -- 1 -. -- CATCHES OF INVERTEBRATES BY 1.8 METER ISAACS-KIDO MID WATER TRAWL IN THE SOUTHEASTERN CHUKCHI SEA NUMBER. SIZE-RANGE. AND DISPLACEMENT VOLUME FOR FACH HALF-HOUR TOW STATIONI 37 DATEl OCT 6 1970 LATITUDEl 70 7 0 NORTH LONGITUDEl 167 36 0 WEST HAULI * DEPTHI 12 METERS TIME: 19156 SPECIES IDENTIFICATION AGLANTHA OIGITALE CUSPIOELLA MERTENSII CYANEA CAPILLATA CLIONE LIMACINA SAGITTA ELE6ANS MYSIS OCULATA/LITORALIS RHACHOTROPSIS ACULEATA 6AMMARUS WILKITZKII PSEUDALIBROTUS NANSENI THYSANOESSA INERMIS THYSANOESSA RASCHII PANDALUS GONIURUS BRACHYURA - ZOEA BRACHYURA - MEGALOPA PAGURIDEA ZOEA PAGURIDEA GLAUCOTHOE NBR. INDIVIDUALS SIZE RANGE VOLUME PER SAMPLE (MM) (CO 0 .- .. 11.0 1 • 120.00 -- 6 30.00- 150.00 -- 12 -. .- .- 2 17.00- 19.00 -- 1 _. 27.00 — 1 .. • • « • * I -. 37.00 .- 1 -. 17.00 .- 12 10.00- 2*. 00 1.5 47 12.00- 20.00 0.5 6 2.50- 11.00 1.* 2 • - • • -- 129 — - — — 24 .. -- • - 2 .. -- -- 22 CATCHES OF INVEHTEBHATES BY 1.8 METER ISAACS-KIDD MID WATER THAWL IN THE SOUTHEASTERN CHUKCHI SEA NUMBER. SIZE-RANGE. AND DISPLACEMENT VOLUME FOR EACH HALF-HOUR TOW STATIONI 41 DATE: OCT 7 1970 LATITUOEl 69 57 0 NORTH LONGITUOEl 167 31 0 WEST HAUL! 1 OEPTHI 19 METERS TIMEl 18122 SPECIES IDENTIFICATION NBR. INDIVIDUALS PER SAMPLE SIZE RANGE (MM) VOLUME (CO AGLANTHA DIGITALS CUSPIDELLA MERTENSII CYANEA CAPILLATA THYSANOESSA INERMIS THYSANOESSA RaSCHII HRACHYURA - ME6AL0PA PAGURIDEA ZOEA PAGURIOEA 6LAUCOTH0E 0 1 12 12 28 19 14 5 40.00-160.00 13.00- 22.00 7.00- 25.00 30.0 0.9 1.2 CATCHES OF INVERTEBRATES BY 1.8 METER ISAACS-KIDO MID WATER TRAWL IN THE SOUTHEASTERN CHUKCHI SEA NUMBER. SIZE-RANGE. AND DISPLACEMENT VOLUME FOR EACH HALF-HOUR TOW STATIONI 41 DATEl OCT 7 1970 LATITUDEl 69 57 0 NORTH LONGITUDE! 167 31 0 WEST HAUL! 2 DEPTHI 12 METERS TIMEl 18159 SPECIES IDENTIFICATION AGLANTHA DIGITALS CUSPIDELLA MERTENSII CHRYSAORA MELANASTER CYANEA CAPILLATA CLIONE LIMACINA MYSIS POLARIS NEOMYSIS RAYIl THYSANOESSA INERMIS THYSANOESSA RASCHII PANOALUS GONIURUS EUALUS MACILENTA BHACHYURA - ME6AL0PA PAGURIDEA ZOEA PAGURIOEA GLAUCOTHOE NBR. INDIVIDUALS PER SAMPLE SIZE RANGE (MM) VOLUME (CO 0 . -. 30.0 1 • • • «* • • 1 10 — -250.00 40.00-120.00 -- 2 • « - •« -* 1 1 18 31 3 1 — - 19.00 — - 33.00 13.00- 24.00 15.00- 23.00 — - 3.00 — - 7.00 -- 13 .. -- 1* .. -- 4 - — 23 CATCHES OF INVEHTEBHATES BY 1.8 METER ISAACS-KIOD MID KATEH TkAWL IN THE SOUTMEASTEHN CHUKCMI SEA NUMBEH. SIZE-HANGEi AND DISPLACEMENT VOLUME FOR EACH HALF-HOUH TOW STATION! 41 DATEl OCT 7 1970 LATITODEl 69 57 0 NORTH LONGITUDEl 167 31 0 WEST HAULI 3 DEPTHI 20 METERS TIMEl 19135 SPECIES IDENTIFICATION AIjLANTHA OIGITALE CUSPIDELLA MERTENSII AURELIA AURITa CHRYSAORA MELANASTER CYANEA CAPILLATA NEOMYSIS RAYII HYPERIA MEOUSARUM THYSANOESbA INERMIS THYSANOESSA RASCHII PANUALUS BOREALIS PANOALUS 60NIURUS BHACHYURA - MEGALOPA PAGURIDEA ZOEA PAGURIDEA GLAUCOTHOE NBR. INDIVIDUALS SIZE RANGE VOLUME PER SAMPLE (MM) (CO 0 . .. 20.0 5 .. -- 1 .. -- 2 220.00-220.00 .. 13 30.00-160.00 «- 3 26.00- 34.00 .- 3 9.00- 11.00 -- 2 — - 20.00 .- 9 17,00- 23.00 -- 1 — - 11.00 1.1 10 4.00- 11.50 2.8 5 -_ -- 4 .. -- 3 .- -- CATCHES OF INVERTEBRATES BY 1.8 METER ISAACS-KIDO MID WATER TRAWL IN THE SOUTHEASTERN CHUKCHI SEA NUMBER. SIZE-RANGE. AND DISPLACEMENT VOLUME FOR EACH HALF-HOUR TOW STaTIONI 41 DATEl OCT 7 1970 LATITUDE) 69 57 0 NORTH LONGITUDEl 167 31 0 WEST MAULI 4 DEPTH! 10 METERS TIMEI 20114 SPECIES IDENTIFICATION CUSPIDELLA MERTENSII CHRYSAORA MELANASTER CYANEA CAPILLATA STOMPHIA SP. CLIONE LIMACINA NEOMYSIS RAYII PARATHEMISTO LIBELLULA THYSANOESSA INERMIS THYSANOESSA RASCHU PAGURIDEA ZOEa PAGURIDEA GLAUCOTHOE NBR. INDIVIDUALS SIZE RANGE VOLUME PER SAMPLE (MM) (CO 1 .. «. 6 230.00-300.00 .. 13 40.00-320.00 -- 1 -- -- 1 -- .- 1 .- .. 1 — - 18.00 -. 2 15.00- 20.00 .. 2 — - 24.00 — 2 -- -- 2 -- -- CATCHES OF INVERTEBRATES BY 1.8 METER ISAACS-KIOD MID WATER TRAWL IN THE SOUTHEASTERN CHUKCHI SEA NUMBER. SIZE-RANGE. AND DISPLACEMENT VOLUME FOR EACH HALF-HOUR TOw STATIONI 45 DATEl OCT 8 1970 LATITUDE! 69 57 0 NORTH LONGITUDEl 168 38 0 WEST HAULI 1 DEPTHI 13 METERS TIMEl 18!46 SPECIES IDENTIFICATION AGLANTHA DIGITALS CUSPIDELLA MERTENSII AURELIA AURITa CHRYSAORA MELANASTER CYANEA CAPILLATA NBR. INDIVIDUALS PER SAMPLE 0 4 1 3 20 SIZE RANGE (MM) VOLUME (CO 100.00-200.00 — - 60.00 150.00-200.00 70.00-160.00 220.0 24 CATCHES OF INVERTEBRATES BY 1.8 METER ISAACS-KIDD MID WATER TKAWL IN THE SOUTHEASTERN CHUKCHI SEA NUMBER* SIZE-MANGE. AND DISPLACEMENT VOLUME FOR EACH HALF-HOUR TOW STATIONI *5 OATEl OCT 8 1970 LATITUDEl 69 57 0 NORTH LONGITUOEl 168 38 0 WEST HAULI 2 DEPTHl 0 METERS TIMEI 19121 SPECIES IDENTIFICATION NBH. INDIVIDUALS PER SAMPLE SIZE RANGE (MM) VOLUME (CO AGLANTHA OIGITALE CTANEA CaPILLATA CLIONE LIMACINA NEOMYSIS RAYII HYPERIA GALBA GAMMARACANTHUS LORICATUS PSEUDALIBHOTUS GLACIALIS THYSANOESSA INERMIS ThYSANOESSA LONGIPES THYSANOESSA RASCHII EUALUS GAIMAROII BHACHYUHA - MEGALOPA PAGURIDEA ZOEA PAGURIDEA 6LAUC0TH0E 0 3 8 1 1 1 1 152 1 143 1 368 14 1 30.0 90.00-170.00 33.00 12.00 13.00 11.00 23.00 15.00 21.00 9.00 9,00" e.oo- 8.2 3.4 CATCHES OF INVERTEBRATES BY 1.8 METER ISAACS-KIOD MID WATER TRAWL IN THE SOUTHEASTERN CHUKCHI SEA NUMBER. SIZE-RANGE. AND DISPLACEMENT VOLUME FOR EACH HALF-HOUR TOW STATIONI 45 DATEl OCT 8 1970 LATITUDE! 69 57 0 NORTH LONGITUDE! 168 38 0 WEST HAUL! 3 DEPTH! 9 METERS TIMEI 20123 SPECIES IDENTIFICATION NBR. INDIVIDUALS PER SAMPLE SIZE RANGE (MM) VOLUME (CO AGLANTHA OIGITALE CUSPIDELLA MERTENSII AURELIA AURITA CHRYSAORA MELANASTER 0 1 2 12 " -140.00 260.00-300.00 50.00-250.00 100.0 CATCHES OF INVERTEBRATES BY 1.8 METER ISAACS-KIOD MID WATER TRAWL IN THE SOUTHEASTERN CHUKCHI SEA NUMBER. SIZE-RANGE. AND DISPLACEMENT VOLUME FOR FACH HALF-HOUR TOW STATION! 45 DATE! OCT 8 1970 LATITUDE! 69 57 0 NORTH LONGITUDE! 168 38 0 WEST HAULI 4 DEPTHl 18 METERS TIME! 20158 SPECIES IDENTIFICATION AGLANTHA OIGITALE CUSPIDELLA MERTENSII CYANEA CAPILLATA 6LYCINDE SP. CHONE CINCTA (7) CLIONE LIMACINA MYSIS OCULATA/LITORALIS ACANTHOMYSIS SP. NEOMYSIS RAYII DAJUS MYSIOIS HYPERIA GALBA MONOCULOIDES BOREALIS THYSANOESSA INERMIS THYSANOESSA RASCHII PANUALUS GONIURUS EUALUS GAIMARDII EUALUS STONEYI BHACHYURA - MEGALOPA PAGURIDEA ZOEA PAGURIDEA GLAUCOTHOE NBR. INDIVIDUALS SIZE RANGE VOLUME PER SAMPLE (MM) (CO 0 .- .• 150.0 8 100.00- 150.00 -- 6 100.00-; 220.00 -- 1 -_ -- -- 1 .. -- -. 5 .. .- -- 8 20.00- 31.00 1.2 1 -_ 25.0 0 — 14 18.00- 39.00 2.6 2 .. -- — 1 -. 6.00 — 1 — 10.00 — 55 12.00- 25.00 4.0 428 8.00- 22.00 20.0 39 2.00- 15.00 8.1 3 5.00- 6.00 0.8 9 5.00- 6.00 -- 271 .. -- -- 69 .. -- -- 174 -. . — — 25 CATCHES OF INVEKTEBKATES BY 1.8 METER ISAACS-KIOD MID WATEW THAKL IN THE SOUTHEASTtHN CHUKCHI SEA NUMBEMi SIZE-RANGEt AND DISPLACEMENT VOLUME FOH EACH HALE-HOUH TOW STAriONI 51 DATEl OCT 9 1970 LATITUDE! 69 36 0 NOWTH LONGITUOEl 167 36 0 WEST HAUL! 1 DEPTH! 13 METERS TIME! 18!U SPECIES IDENTIFICATION AOLANTHA OIGITALE CUSPIUELLA MERTENSII AURELlA AUHITA CHRYSAOKA MtLANASTER CYANEA CAPILLATA MYSIS OCULATA/LITORALIS ACANTHOMYbIS PSEUDOMACHOPSIS NEOMYSIS HAYII THYSANOtSbA INERMIS THYSANOESSA RASCHU PANDALUS 60NIURUS EUALUS OAIMARDII BHACHYUNA - MEGALOPA PAGURIOEA ZOEA PAGUHIOEA 6LAUC0TH0E NBR. INDIVIDUALS SIZE RANGE VOLUME PER SAMPLE (MM) (CO 0 *• • •« 150.0 5 — -180.00 -- 1 — - 50.00 -- 6 230.00-260.00 -- 12 60,00-1*0.00 -- 9 27.00- 32.00 1.0 Z 16.00- 17.00 -- 5 25.00- 37.00 -- 15 12.00- 20.00 0.8 73 7.00- 20.00 3.0 13 3.00- 10.00 1.2 1 — - 9.50 0.4 1 -- -- 7 .- -. 20 — . — — CATCHES OF INVERTEBRATES BY 1.6 METER ISAACS-KIDD MID WATER TRAWL IN THE SOUTHEASTERN CHUKCHI SEA NUMbERi SIZE-RANGE. AND DISPLACEMENT VOLUME FOH EACH HALF-HOUR TOW STATIONI 51 DATEl OCT 9 1970 LATITUDE! 69 36 0 NORTH LONGITUDE! 167 36 0 WEST HAUL! 2 DEPTH! 2 METERS TIME! 181*8 SPECIES IDENTIFICATION AGLANTHA OIGITALE CUSPIOELLA MERTENSII AURELIA AURITA CYANEA CAPILLATA CLIONE LIMACINA SAGITTA ELEGANS MYSIS OCULATA/LITORALIS HYPERIA GALBA PARATHEMISTO LIBELLULA THYSANOESSA INERMIS THYSANOESSA RASCHU BRACHYURA - MEGALOPA PAGURIOEA ZOEA PAGURIOEA GLAUCOTHOE NBR. INDIVIDUALS PER SAMPLE 0 2 1 5 1 1 19 1 1 32 2* 850 5 21 SIZE RANGE VOLUME (MM) (CO -. 10.0 180.00-180.00 -- — -100. UO -- 40.00-220.00 -- • • • •• • • — - 20.00 -- 20.00- 30.00 2.0 — - 10.00 -- ~ - 15.00 — 20.00- 23.00 3.2 9.00- 25.00 O.B CATCHES OF INVERTEBRATES BY 1.8 METER ISAACS-KIDO MID WATER TRAWL IN THE SOUTHEASTERN CHUKCHI SEA NUMBER. SIZE-RANGE. AND DISPLACEMENT VOLUME FOR EACH HALF-HOUR TOW STATION! 51 DATEl OCT 9 1970 LATITUDE! 69 36 0 NORTH LONGITUDE! 167 36 0 WEST HAUL! 3 DEPTH! 7 METERS TIME! 19148 SPECIES IDENTIFICATION AGLANTHA OIGITALE CUSPIOELLA MERTENSII CHHYSAORA MELANASTER CALANUS FINMARCHICUS S.L. MYSIS OCULATA/LITORALIS ACANTHOMYSIS PSEUDOMACROPSIS NEOMYSIS RAYII THYSANOESSA INERMIS THYSANOESSA RASCHU PANDALUS GONIURUS BRACHYURA - MEGALOPA PAGUHIOEA ZOEA PAGURIOEA GLAUCOTHOE NBR. INDIVIDUALS SIZE RANGE VOLUME PER SAMPLE (MM) (CO 0 .- .. 12.0 2 «• • • • -- 1 — -: 340.00 — 4 •- • • - • - 15 25.00- 28.00 2.1 1 .. 19.00 -- 8 32.00- 39.00 2.0 10* 9.00- 29.00 45.0 662 9.00- 24.00 11.0 5 .- 3.00 -- 312 -. — -- 46 — -- -- 37 -_ - — -- 26 CATCHES OF INVEHTEBHATES BY 1.8 METER ISAACS-KIDn MIO WATER THAKL IN THE SOUTMEASTEHN CHUKCHI SEA NUMBE«f SIZE-RANGEt AND DISPLACEMENT VOLUME FOH EACH HALF-HOUH TOW STATION! 51 OATEI OCT 9 1970 LATITUDEl 69 36 0 NOHTH LONGITUOEl 167 36 0 WEST HAULI * DEPTHI 20 METERS TIMEI 20124 SPECIES IDENTIFICATION CUSPIDELLA MEHTENSII AUHELIA AURITA CHRYSAOKA MELANASTER CYANEA CAPILLATA NBR. INDIVIDUALS SIZE RANGE VOLUME PER SAMPLE (MM) (CO 4 120,00-180.00 .. X — -100.00 -- 5 200.00-320.00 -- 32 30.00-lHO.OO — CATCHES OF INVERTEBRATES BY 1.8 METER ISAACS-KIOD MID WATER TRAWL IN THE SOUTHEASTERN CHUKCHI SEA NUMBEHt SIZE-RANGE. AND DISPLACEMENT VOLUME FOR FACH HALF-HOUR TOW STATION! b6 DATE! OCT 10 1970 LATITUDE! 69 1« 0 NORTH LONGITUDE! 166 53 0 WEST HAULI 1 DEPTH! 2 METERS TIME! 20110 SPECIES IDENTIFICATION AGLANTHA DIGITALE CUSPIDELLA MERTENSII AURELIA AURITA CYANEA CAPILLATA CLIONE LIMACINA CALANUS FINMARCHICUS S.L. MYSIS OCULATA/LITORALIS NEOMYSIS RAYII HYPERIA MEOUSARUM HYPEROCHE MEDUSARUM THYSANOESSA INERMIS THYSANOESSA RASCHII BRACHYURA - MEGALOPA PAGURIDEA GLAUCUTHOE NBR. INDIVIDUALS PER SAMPLE SO 1 16 1 194 19 2 1 5 59 9 21 SIZE RANGE VOLUME (MM) (CO .- ». — -200.00 — 70.00-130.00 -- 50.00-160.00 -- .. • •« -- — - 2.U0 -- 19.00- 29.00 15.5 33.00- *5.00 5.1 1.00- 8.00 -- — - 7,00 -- 18.00- 23.00 -- 9.00- 27.00 2.6 CATCHES OF INVERTEBRATES BY 1.8 METER ISAACS-KIDO MID WATER TRAWL IN THE SOUTHEASTERN CHUKCHI SEA NUMBER. SIZE-RANGE. AND DISPLACEMENT VOLUME FOR EACH HALF-HOUR TOW STATION! 56 DATE! OCT 10 1970 LATITUDE! 69 1* 0 NORTH LONGITUDE! 166 53 0 WEST HAUL! 2 DEPTH! 9 METERS TIME! 20!*4 SPECIES IDENTIFICATION AGLANTHA DIGITALE CUSPIDELLA MERTENSII AURELIA AURITA CHRYSAORA MELANASTER CLIONE LIMACINA SAGITTA ELE6ANS CALANUS CRISTaTUS MYSIS OCULATA/LITORALIS ACANTHOMYSIS PSEUOOMACROPSI S NEOMYSIS RAYII DAJUS MYSIDIS HYPERIA GALBA PARATHEMISTO LIBELLULA THYSANOESSA INERMIS THYSANOESSA RaSCHII PANOALUS goniurus BRACHYURA - MEGALOPA PAGURIDEA 20EA PAGURIDEA GLAUCOThOE NBR. INDIVIDUALS SIZE RANGE VOLUME PER SAMPLE (MM) (CO 0 .. .- 1.0 1 .. -- -- I .. 120.00 .- 2 200.00- 1*50.00 — 1 • • « • * *• 41 17.00- 28.00 .. 1 -. 11.00 • - 63 20.00- 30.00 6.5 1 .. 19.00 -- 14 29.00- 33.00 2.9 1 .. -. .. 2 -- 3.00 -. 3 14.00- 17.00 -- 1 -. 20.00 .- 21 12,00- 30,00 1.4 23 3,50- 4,50 1.0 2 «• . -• »- 19 — - -- .- 8 — -. .- 27 CATCHES OF INVEHTEBRATES BY 1.8 METER ISAACS-KIOn MID WATER THA»L IN THE SOUTHEASTERN CHUKCHI SEA NUMBEHt SIZE-RANGE. AND DISPLACEMENT VOLUME FOR FACH HALF-HOUR TOW STATION! b6 DATEI OCT 10 1970 LATITUOEl 69 I* 0 NORTH LONGITUDEl 166 63 0 WEST HAULI 3 DEPTH! 18 METERS TIME: ?llft2 SPECIES IDENTIFICATION AGLANTHA UIGITALE CUSPIDELLA MERTENSII CMRYSAORA MELANASTER CLIONE LIMACINA SA6ITTA ELE6ANS CALANUS CHISTATUS MYSIS OCULATA/LITORALIS NEOMYSIS RAYII HYPERIA MEOUSARUM HYPEROCHE MEOUSARUM ACANTHONOTOZOMA SERRATUM MAERA LOVENl MELITA SP (7 DESOICMADA) THYSANOESSA RASCHII PANOALUS GONIURUS EUALUS GAIMARDII EUALUS STONEYI AHGIS LAR CHANGON DALLI bHACHYURA - MEGALOPA PAGURIDEA ZOEA PAGURIDEA GLAUCOTHOE NBR. INDIVIDUALS SIZE RANGE VOLUME PER SAMPLE (MM) (CO 6 • « • _. .. 1 -- -: 140.00 -. 8 210.00-: 320.00 -- 6 10.00- 13.00 -. 18 14.00- 38.00 -- 1 .. 9.00 -- 16 19.00- 30.00 -- 5 31.00- 39.00 -- 1 .. 12.00 -- 1 .- 8.00 -- 1 -_ 8.00 -- 1 -_ 22.00 -- 1 -_ 13.00 -- 3 10.00- 23.00 -- 21 3.00- 4.00 -- 1 .. 5.00 -- 1 -. 4.00 -- 29 3.00- 8.00 .- 1 -- 3.00 .- 2 .. 6.00 .- 8 7.00- 9.00 -- 11 7.00- 8.00 — CATCHES OF INVERTEBRATES BY 1.8 METER ISAACS-KIDn MID WATER TRAWL IN THE SOUTHEASTERN CHUKCHI SEA NUMBEHt SIZE-RANGE. AND DISPLACEMENT VOLUME FOR EACH HALF-HOUR TOW STATION! 56 DATEI OCT 10 1970 LATITUDE! 69 14 0 NORTH LONGITUDE! 166 53 0 WEST MAUL! 4 DEPTH! 23 METERS TIME! 22!29 SPECIES IDENTIFICATION AGLANTHA DIGITALE AURELIA AURITa CHHYSAORA MELANASTER LUMriRINEREIS FRAGILlS CLIONE LIMACINA SAGITTA ELEGANS EUCALANUS BUNGII MYSIS OCULATA/LITORALIS ACANTHOMYSIS SP. NEOMYSIS RAYII MELITA SP (7 DESOICMADA) THYSANOESSA INERMIS THYSANOESSA RASCHII PANDALUS GONIURUS EUALUS STONEYI AR6IS LAR BRACHYURA - MEGALOPA PAGURIDEA ZOEA PAGURIDEA GLAUCOTHOE NBR. INDIVIDUALS SIZE RANGE VOLUME PER SAMPLE (MM) (CO 0 .. • • 7.0 1 .. 100.00 -- 1 -: 300.00 -- 1 -. -- -- 5 -. -- — 7 16.00- 28.00 — 1 .. 6.00 -- 1* 17.00- 32.00 -- 2 12.00- 13.00 -- 3 12.00- 38.00 -- 2 10.00- 11.00 -- 3 20.00- 22.00 -- 6 12.00- 20.00 .- 27 3.00- 4.00 .- 4 4.00- 5.00 .- 59 3.00- 14.00 -- 6 .- -- — 12 .. — -- 16 .- - " -- 28 CATCHES OF INVEHTEBRATES BY 1.8 METER ISAACS-KIDO MID WATER TRAWL IN THE SOUTHEASTERN CHUKCHI SEA NUMBERi SIZE-RANGE. AND DISPLACEMENT VOLUME FOR FACH HALF-HOUR TOW STATIONI 61 DATEl OCT U 1970 LATITUDEl 69 5 0 NORTH LONGITUDE! 166 13 0 WEST HAUL! 1 DEPTH! 13 METERS TIME! 18IZ5 SPECIES IDENTIFICATION AGLANTHA OIGITALE CHRrSAORA MELANASTER CLIONE LIMACINA MYSIS OCULATA/LITORALIS ACANTHOMYSIS PSEUDOMACROPS 1 S NEOMYSIS HAYII OIASTYLIS SP (7 LEPECHINI) PARATHEMISTO LIBELLULA ACANTHONOTOZOMA SERRATUM ATYLUS BRU6GENI RHACHOTROPSIS ACULEATA MELITA FORMOSA ANONYX LILLJEBORGI THYSANOESSA RASCHII PANOALUS GONIURUS eUALUS FABRICII EUALUS GAIMARDII EUALUS MACILENTA LEB8EUS GROENLANOICUS AR6IS LAR CRANGON DALLI CRANGUN SP. (7 INTERMEDIA) BRACHYURA - MEGALOPA PAGURIOEA ZOEA PAGURIDEA GLAUCOTHOE NBR. INDIVIDUALS SIZE RANGE VOLUME PER SAMPLE (MM) (CO 4 .- « «_ __ 3 250.00-300.00 — 2 -• • • * • * 250 17.00- 33.00 — 5 12.00- 18.00 -- 33 10.00- 37.00 -- 2 11.00- 14.00 -- 1 .. 16.00 — 1 .. 12.00 -- 2 19. oo- 20.00 -- 2 ze. 00- Z9.00 — 1 .. 16.00 -- 1 .. 12.00 -- 2 17.00- 20.00 -- 364 3.00- 15.00 — 1 -. 7.00 -- 57 5.00- 9.00 -- 1 .. 7.00 -- 4 11.00- 12.00 -- 201 3.00- 17.00 -- 2 9.00- 12.00 -- 1 -- - 4.00 -- 5 *• -- -- 30 — - — — 16 .. — -- CATCHES OF INVERTEBRATES BY 1.8 METER ISAACS-KIOD MID WATFR TRAWL IN THE SOUTHEASTERN CHUKCHI SEA NUMBER. SIZE-RANGE. AND DISPLACEMENT VOLUME FOR EACH HoLF-HOUR TOW STATION! 61 DATE! OCT 11 1970 LATITUDE! 69 5 0 NORTH LONGITUDE! 166 13 0 WEST HAUL! 2 DEPTH! 8 METERS TIME! 19100 SPECIES IDENTIFICATION CHRYSAORA MELANASTER CYANEA CAPILLATA MYSIS OCULATA/LITORALIS ACANTHOMYSIS PSEUDQMACHOPSIS NEOMYSIS RAYII OIASTYLIS SP (7 LEPECHINI) PARATHEMISTO LIBELLULA ATYLUS BRUGGENI MAERA LOVENI THYSANOESSA RASCHII PANOALUS GONIURUS EUALUS GAIMARDII LEBBEUS GROENLANOICUS ARGIS LAR ARGIS CRASSA BRACHYURA - MEGALOPA PAGURIDEA ZOEA PAGURIOEA GLAUCOTHOE NBR. INDIVIDUALS SIZE RANGE VOLUME PER SAMPLE (MM) (CO 3 150.00-; 310.00 -. 1 -i ?80.00 -- no 17.00- 27.00 -- 5 16.00- 18.00 -- 217 10.00- 35.00 — 1 .. 8.00 -- 1 .- 15.00 -- 1 .. 12.00 -- 1 .- 23.00 -- 1 -. 22.00 — 953 3.00- 14.00 -- 1 .. 7.00 -- 4 10.00- 12.00 -- 2 8.00- 10.00 -- 1 .. 3.50 -- 1 • • - *- • ** 56 .. . .- .- 30 -_ -- -- 29 CATCHES OF INVEKTEBRATES BY 1.8 METER ISAACS-KIOn MID WATER THAKL IN THE SOUTHEASTERN CHUKCHI SEA NUMBER? SIZE-RANGEt AND DISPLACEMENT VOLUME FOR EACH HALF-HOUR TOW STATIONI 61 OATEl OCT 11 1970 LATITUDEl 69 5 0 NORTH LONblTUDEl 166 13 0 WEST HAULI 3 DERTHI 16 METERS TIMEI 19136 SPECIES IDENTIFICATION CHRYSAORA MYSIS OCU ACANTMOMY ACANTMOMY NEOMYSIS ACANTHONO RHACHOTRO ANONYX NU HIPPOMEUO MONOCULOI PLUESTES PANOALUS EUALUS FA EUALUS GA EUALUS MA LEBBEUS G AHGIS LAR CRANGON D PAGUHIOEA PAGURIDEA MELANASTER LATA/LITORALIS SIS PSEUOOMACROPSIS SIS SP. RAYII T020MA SERRATUM PSIS ACULEATA GAX N PROPINQUUS OES BOREALIS PANOPLA GONIURUS BRICII IMAROII CILENTA ROENLANDICUS ALLI ZUEA GLAUCOTHOE . INDIVIDUALS SIZE RANGE VOLUME PER SAMPLE (MM) (CO 6 230.00-; J90.00 _» 65 16.00- 20.00 -- 1 -- 16.00 -- I -. 16.00 -- as 27.00- 40.00 -- 1 .. 14.00 -- 1 .. 25.00 — 1 — 22.00 -. 1 .- 15.00 -- 1 -■ 9.00 -- 1 -- 20.00 -- 1104 3.00- 15.00 — 4 5.00- 13.00 -- 65 ».00- 10.00 -- 1 -. 5.00 — 11 9.00- 16.00 — 91 4.00- 15.00 -- 2 9.00- 10.00 -- a — — -- 4 _. — -- CATCHES OF INVERTEBRATES BY 1.8 METER ISAACS-KIDD MID WATER TRAwL IN THE SOUTHEASTERN CHUKCHI SEA NUMBER. SIZE-RANGE» AND DISPLACEMENT VOLUME FOR EACH HALF-HOUR TOW STATIONI 61 OATEt OCT 11 1970 LATITUDEl 69 5 0 NORTH LONGITUDEl 166 13 0 WEST HAULI 4 depth; 23 METERS TIMEI 20115 SPECIES IDENTIFICATION CHRYSAORA MELANASTER CLIONE LIMACINA MYSIS OCULATA/LITORALIS PSEUOOMMA TRUNCATUM MELITA SP (7 DESOICHAOA) TMYSANOESSA RASCHII PANDALUS GONIURUS EUALUS FaBRICII EUALUS GAIMARDII LEBBEUS GROENLANDICUS ARGIS LAR PAGURIDEA ZOEA PAGURIDEA GLAUCOTHOE NBR. INDIVIDUALS SIZE RANGE VOLUME PER SAMPLE (MM) (CO 4 170.00-: 3b0.00 .. 2 -• - -- -- 14 19.00- 37.00 -- 10 31.00- 38.00 -- 7 9.00- 12.00 -- 1 — 15.00 — iia 3.00- 15.00 " 3 5.00- 8.00 — 44 4.00- 10.00 -- 1 .. 7.00 " 56 4.00- 16.00 — 6 — — -- 3 -- -- -- 30 CATCHES OF INVEHTEBHATES BY 1.8 METER ISAACS-KIDD MID WATER THAWL IN THE SOUTHEASTERN CHUKCHI SEA NUMBEHt SIZE-HANGE. AND DISPLACEMENT VOLUME FOR EACH HALF-HOUR TOW STATIONI 65 DATE: OCT 12 1970 LATITUDEl b9 21 0 NORTH LONGITUDE! 166 45 0 WEST HAULl 1 DEPTH! 22 METERS TIME! 18!25 SPECIES IDENTIFICATION AGLANTHA UIGITALE CUSPIOELLA MEHTENSII AORELIA AORITA CHRYSAORA MELANASTER CYANEA CAPILLATA ANTINOE BADIA CLIONE LIMACINA SAGITTA ELEGANS CALANUS FINMARCHICUS S.L. MYSIS OCULATA/LITORALIS NEOMYSIS RAYII HYPERIA MEOUSARUM AMPELISCA MACROCEPHALA BLYBIS GAIMARDII RHACHOTROPSIS ACULEATA MELITA FORMOSA MELITA SP (? UESDICHAOA) MUNOCULOIDES BOREALIS THYSANOESSA INERMIS TmYSANOESSA RASCHII PANOALUS GONIURUS EUALUS FABRICII EUALUS GAIMARDII AR6IS LAR BRACHYURA - MEGALOPA PAGURIDEA ZOEA PAQURiDEA GUAUCUTHOE NBR. INDIVIDUALS SIZE RANGE VOLUME PER SAMPLE - 97 11.00- 32.0 0 -- 1 -. 12.00 -- 1 _. 5.00 -- # 10.00- 20.00 O.B 42 28.00- 32.00 14.0 1 .- 22.00 -- 1 ._ 14.00 .- 9 7.00- 12.00 .- 2 20.00- 25.00 1.0 1 __ 15.00 -- 1 -. 15.00 -- 2 10.00- 12.00 -- 1 .. 12.00 — 66 8. co- 35.00 50.0 2 ll. 00- 12.00 -• I -. 15.00 -- 15 15.00- 40.00 10.0 5 10.00- 11.00 -- 10 18.00- 24.00 0.5 5 15.00- 17.00 -- 44 7.00- 16.50 27.0 1 .- 9.00 1.0 139 4.50- 10.50 57.0 138 3.00- 20.00 126.0 1 .. 25.00 — 2 - — — 3 m- — — CATCHES OF INVERTEBRATES BY 1.8 METER ISAACS-KIDD MID WATER TRAWL IN THE SOUTHEASTERN CHUKCHI SEA NUMBER. SIZE-RANGE. AND DISPLACEMENT VOLUME FOR FACM HALF-HOUR TOW STATIONI 88 DATEl OCT 16 1970 LATITUDEl 68 55 0 NORTH LONGITUDEI 166 47 0 WEST HAULI 1 DEPTHI 11 METERS TIMEI 19147 SPECIES IDENTIFICATION AURELIA AURITA CYANEA CAPILLATA STOMPHIA SP. MYSIS OCULATA/LITORALIS ACANTHOMYSIS PSEUDOMACROPSIS NEOMYSIS RAYII DIASTYLIS GLABRA DAJUS MYSIOIS HYPERIA MEDUSARUM AMPELISCA MACROCEPHALA ANONYX NUGAX PSEUDALIBROTUS NANSENI THYSANOESbA INERMIS THYSANOESSA RASCHII PANDALUS GONIURUS EUALUS GAIMARDII ARGIS LAR BRACHYURA - MEGALOPA PAGURIOtA ZOEA PAGURIDtA GLAUCOTHOE NBR. INDIVIDUALS SIZE RANGE VOLUME PER SAMPLE (MM) (CO 1 .- 100.00 .. 1 — - 150,00 -- 1 » • — — *w 1870 20.00- 40.00 -- 35 7,00- 18,00 0,7 122 10.00- 37,00 17,0 27 10.00- 30,00 3,6 12 -- .- — 1 .. 15,00 0,2 1 .. 26,00 -- 8 15.00- 35,00 6,0 1 — 17,00 -- 301 16.00- 26,00 28,0 210 9.00- 28.00 9,0 IB 2.50- 9,00 1,8 4 5.00- 8,00 1,0 3 4.00- 9,00 1,1 5 .. -- -- 14 .- -. 79 -. - .- 1.8 39 CATCHES OF INVERTEBRATES BY 1.8 METER ISAACS-KIDn MlO MATER TRAWL IN THE SOUTHEASTERN CHUKCHI SEA NUMBERt SIZE-RANGEt AND DISPLACEMENT VOLUME FOR EACH HALF-HOUR TOW STATIONI aa OATEI OCT 16 1970 LATITUOtI 68 5b 0 NORTH LONGITUDEl 166 *7 0 WEST HAULI 2 DEPTHI 2 METERS TIMEI 20122 SPECIES IDENTIFICATION AbLANTHA OIGITALE AUREHA AURITa CYANEA CAPILLATA CLIONE LIMACINA MYSIS OCULATA/LITORALIS ACANTHOMYSIS PSEUDOMACROPSIS NEOMYSIS RAYII DIASTYLIS GLABRA DAJUS MYSIOIS ANONYX NUGAX TMYSANOESbA INERMIS TMYSANOESSA RASCMII PANDALUS GONIURUS EUALUS SP. BRACHYUHA - MEGALOPA PAGURIDEA ZOEA PAGURIDEA GLAUCOTHOE NBR. INDIVIDUALS SIZE RANGE VOLUME PER SAMPLE (MM) (CO 20 .. _. .. 1 .. 60.00 -- 1 " -1 100.00 — 1 • . - -- -- 1533 17.00- 30.00 100.0 12 9.00- 17.00 — 30 11.00- 32.00 -- 1 -- 25.00 -- 1 • • - -- -- 2 -- - 35.00 1.8 19 16.00- 20.00 0.8 30 8.00- 18.00 1.9 I -- - 9.00 -- 1 .. -- -- 3 -. -- -- 1 _. -- — 12 -- -- -- CATCHES OF INVERTEBRATES BY 1.8 METER ISAACS-KIDO MID WATER TRAWL IN THE SOUTHEASTERN CHUKCHI SEA NUMBERt SIZE-RANGE. AND DISPLACEMENT VOLUME FOR EACH HALF-HOUR TOW STATIONI 88 UATEI OCT 16 1970 LAHTUDEl 68 5b 0 NORTH LONGITUDE! 166 47 0 WEST HAULI 3 DEPTHI 24 METERS TIMEI 21125 SPECIES IDENTIFICATION AGLANTHA DIGITALS CUSPIDELLA MERTENSII AURELIA AURITA CYANEA CAPILLATA CLIONE LIMACINA MYSIS OCULATA/LITORALIS ACANTHOMYSIS PSEUDOMACROPSIS ACANTHOMYSIS SP. NEOMYSIS RAYII PSEUDOMMA TRUNCATUM DAJUS MYSIDIS PARATHEMISTO LIBELLULA RHACMOTROPSIS ACULEATA MELITA SP (? DESDICHAOA) TMYSANOESbA INERMIS THYSANOESSA LONGIPES THYSANOESSA RASCHII PANDALUS GONIURUS EUALUS GAIMARDII EUALUS STONEYI EUALUS SP. AHGIS LAR BRACHYURA - MEGALOPA PAGURIDEA ZOEA PAGURIDEA GLAUCOTHOE NBR. INDIVIDUALS SIZE RANGE VOLUME PER SAMPLE (MM) (CO 0 • - - _• 14.0 1 " -] 140.00 -- 2 50.00-1 140.00 -- 3 30.00-1 170.00 -- 3 • - - -« -- 242 17.00- 33.00 20.0 11 17.00- 19.00 0.2 2 10.00- 14.00 -- 238 9.00- 40.00 58.0 1 .. 9.00 -- 20 .. -- -- 1 .. 15.00 -- 2 15.00- 24.00 0.4 7 13.00- 15.00 -- 24 19.00- 21.00 2.3 1 -. 16.00 -- 30 9.00- 20.00 1.2 16 3.00- 11.50 4.8 58 6.00- 9.00 14.0 2 -. 5.00 -- 2 .- 2.00 -- 3 4.00- 4.50 -- 9 .. .- -- IbO — - — — 113 -- - -- -- 40 CATCHES OF 1 NVEHTE.BRATES BY 1.8 METEK ISAACS-KIDO MID WATER THAWL IN THE SOUTHEASTERN CHUKCHI SEA NUMBER* SIZE-RANGE. AND DISPLACEMENT VOLUME FOR FACH HALF-HOUR TOW STATIONI 88 OATEl OCT 16 1970 LATITUOEl 68 56 0 NORTH LONGITUDEl 166 47 0 WEST HAULI * DEPTHI 40 METERS TIMEl 22105 SPECIES IDENTIFICATION AGLANTHA DIGITALE CUSPIOELLA MERTENSII AURELIA AURITA CTANEA CAPILLATA NEPTHYS PARADOXA (7) PHASCOLOSOMA LUMBRINEREIS SIMILABRIS AXIOTMELLA (7) MARGARITES SP . NATICA CLAUSA NUCULA TENUIS OPHIUROIOEA SAGITTA ELEGANS MYSIS OCULATA/LITORALIS ACANTHOMYSIS PSEUDOMACROPSl S ACANTHOMYSIS SP. NtOMYSIS RAYII PSEUDOMMA TRUNCATUM EUOORELLA EMARGINATA OAJUS MYSIDIS HYPERIA GALBA HYPERIA MEOUSaRUM ACANTHONOTOZOMA SERRATUM PROTOMEDIA STEPMENSENI RMACHOTROPSIS ACULEATA MELITA FORMOSA MELITA SP (? DESDICHADA) ANONYX NUGAX MONOCULOIOES BOREALIS THYSANOESSA INERMIS THYSAN0ES5A RASCMII PANDALUS GONIURUS EUALUS FABRICII EUALUS GAIMARDII EUALUS STONEYI ARGIS LAR CRANGON OALLI PAGURUS TRIGONOCHEIRUS PAGURIDEA ZOEA PA6URI0EA GLAUCOTHOE NBR. INDIVIDUALS SIZE RANGE VOLUME PER SAMPLE (MM) (CO 0 .. .. 336.0 1 -1 140.00 -- 1 — 80.00 — 23 60.00-230.00 — 2 .. -- -- I -_ -- -- 1 — - -- -- 1 -. -- -- 1 .- -- — I -- -- — I -- — -- 1 — -- -- 1 .. — -- 442 12.00- 37.00 50.0 4 .. m -- «- 5 9.00- 15.00 -- 91 8.00- 38.00 20.0 1 .- 9.00 -- 1 .. - 10.50 -- 4 .. — -- 1 -. . 14.00 — 2 10.00- 18.00 — 1 .. 7.00 — 2 7.00- 7.00 — 1 .. 15.00 -- 4 12.00- 23.00 -- 7 10.00- 14.00 — 2 14,00- 26.00 -- 2 8.00- 9.00 -- 5 22.00- 23.00 -- 11 8.50- 22.00 -- 8 8.00- 14.00 9.0 9 3.00- 7.00 0.6 20 5.00- 9.00 7.0 1 .. 5.00 — 70 3.00- 17.00 23.0 1 — - 6.50 0.2 2 • . - *• • - 70 .- - — . 1.9 104 .. . — 3.0 CATCHES OF INVERTEBRATES BY 1.8 METER ISAACS-KIDn MID WATER TRAWL IN THE SOUTHEASTERN CHUKCHI SEA NUMBER. SIZE-RANGE, AND DISPLACEMENT VOLUME FOR EACH HALF-HOUR TOW STATIONI 92 OATEl OCT 17 1970 LATITUOEl 68 36 0 NORTH LONGITUDEl 167 41 0 WEST HAULI 1 DEPTHI 13 METERS TIMEl 18103 SPECIES IDENTIFICATION AGLANTHA DIGITALE CHRYSAORA MELANASTER CYANEA CAPILLATA STOMPHIA SP. MYSIS OCULATA/LITORALIS NEOMYSIS RAYII DIASTYLIS GLABRA THYSANOESSA RASCHU PANDALUS GONIURUS NBR. INDIVIDUALS SIZE RANGE VOLUME PER SAMPLE (MM) (CO 0 -. 50.0 5 240.00-400.00 -- 1 — -200.00 -- 2 • - « -• -- 2 17.00- 30.00 — 5 33,00- 34.00 -- I — - 16,00 -- 5 10,00- 22.00 -- 2 8.00- 9.00 1.0 41 CATCHES OF INVENTEHRATES BY 1.6 METER ISAACS-KIOO MID WATER THAKL IN THE SOUTHEASTERN CHUKCHI SEA NUMBER. SIZE-RANGE. AND DISPLACEMENT VOLUME FOR EACH HALF-HOUR TOW STATION! 92 DATEl OCT 17 1970 LATITUDEl 68 36 0 NORTH LONGITUDEl 167 41 0 WEST HAULI 2 OERTHI 2 METERS TIMEI 18137 SPECIES IDENTIFICATION AGLANTHA DIGITALE AURELIA AURITa CHRrSAORA MELANASTEH CYANEA CAPILLATA CLIONE LIMAClNA SAGITTA ELE6ANS MYSIS OCULATA/LITORALIS ACANTHOMYSIS PSEUOOMACROPSIS NEOMYSIS RAYII HYPERIA MEDUSARUM MYPEROCHE MEDUSARUM THYSANOESSA INERMIS THYSANOESbA RASCHII ARGIS LAR PAGURIDEA ZOEA PAGURIOEA 6LAUC0TH0E NBR. INDIVIDUALS PER SAMPLE 0 2 2 2 33 SIZE RANGE VOLUME (MM) (CO — 6.0 110.00- — — 170.00-240.00 — 50.00-160.00 — • * • -- • - 12.00- 30.00 .. 17,00- 26.00 -- 10.00- 17.00 -- " - 33.00 -- — - 16.00 -- — - 9.00 -- 10.00- 25.00 -- U.OO- 19.00 -- — - ♦.00 -- CATCHES OF INVERTEBRATES BY 1.8 METER ISAACS-KIDO MID WATER TRAWL IN THE SOUTHEASTERN CHUKCHI SEA NUMBER. SIZt-RANGE. AND DISPLACEMENT VOLUME FOR EACH HALF-HOUR TOW STATION! 92 DATE! OCT 17 1970 LATITUDE! 68 36 0 NORTH LONGITUDE! 167 *1 0 WEST HAUL! 3 DEPTH! 33 METERS TIME! 19135 SPECIES IDENTIFICATION AGLANTHA DIGITALE AURELIA AURITa CHRYSAORA MELANASTER CLIONE LIMAClNA SAGITTA ELEGANS MYSIS OCULATA/LITORALIS NtOMYSIS RAYII HYPERIA 6ALBA RHACHOTROPSIS OCULATA THYSANOESSA RASCHU PANUALUS GONIURUS EUALUS GAIMARDII EUALUS STONEYI ARGIS LAR CRANGON DALLI BRACHYURA - MEQALOPA PAGURIDEA ZOEA PAGURIOEA 6LAUC0TH0E NBR. INDIVIDUALS SIZE RANGE VOLUME PER SAMPLE (MM) (CO .. . -. 102.0 • • - -• • • 160.00-470.00 — *• m -• • • .. . 22.00 — -m 24.00 — 30.00- 36.00 l.« .- - 9.00 — -. 13.00 -- 12.00- 20.00 -- -. 4.00 -- 12 5.00- 10.00 6.0 4.00- 6.00 0.3 1* 4.00- 16.00 6.0 ._ 6.00 " -_ -- — •- • _- -• .. -• — 42 CATCHES OF INVEHTEBKATES BY 1.8 METER ISAACS-KIDO MID WATEH TRAWL IN THE SOUTHEASTERN CHUKCHI SEA NUMBER. SIZE-RANGE. AND DISPLACEMENT VOLUME FOR FACH HALF-HOUR TOW station: 92 DATE! OCT 17 1970 LATITUUtI 68 36 0 NORTH LONGITUDE! 167 41 0 WEST HAULI * DERTHI 17 METERS TIME! 20114 SPECIES IDENTIFICATION AGLANTHA DIGITALE CHRYSAORA MELANASTEH CYANtA CAPILLATA MYSIS OCULATA/LITORALIS NEOMYSIS RAYII THYSANOESSA INERMIS THYSANOESSA RASCHII PANDALUb GONIURUS EUALUS GAIMARDII PAGURIDEA 6LAOC0THOE NBR. INDIVIDUALS PER SAMPLE 3 6 2 1 4 1 4 3 1 1 SIZE RANGE VOLUME (MM) (CO -• - •« .. 260.00-420.00 .. 90.00- 90.00 .. — - 20.00 .- 33.00- 45.00 1.2 — - 20.00 -- 12.00- 18.00 .- 9.00- 11.00 2.6 — - 5.00 -- 43 ft U. S. GOVERNMENT PRINTING OPFlCEr 1977—797-266/16 REGION 10 672. Seasonal occurrence of young Guld menhaden and other flshes in a northwestern Florida estuary. By Marlin E. Tagatz and E. Peter H. Wilkins. August 1973, iii + 14 p.. 1 fig., 4 tables. For sale by the Superintendent of Documents, U.S. Government Printing Office. Washington, D.C. 20402. 673. Abundance and distribution of inshore benthic fauna off southwestern Long Island, N.Y. By Frank W. Steimie, Jr. and Richard B. Stone. December 1973, iii + 50 p., 2 figs., 5 app. tables. 674. Lake Erie bottom trawl explorations, 1962-66. By Edgar W. Bow- man. January 1974, iv + 21 p., 9 figs., 1 table, 7 app. tables. 675. Proceedings of the International Billfish Symposium, Kailua- Kona, Hawaii, 9-12 August 1972. Part 1. Report of the Symposium. March 1975, iii + 33 p.; Part 2. Review and contributed papers. July 1974, iv + 355 p. (38 papers); Part 3. Species synopses. June 1975, iii + 159 p. (8 papers). Richard S. Shomura and Francis Williams (editors). For sale by the Superintendent of Documents, U.S. Government Printing Office, Washington, D.C. 20402. 676. Price spreads and cost analyses for finfish and shellfish - ^ ' different marketing levels. By Erwin S. Penn. March 1974. figs.. 12 tables, 12 app. figs., 14 app. tables. For sale by the .- ,.^ dent of Documents, U.S. Government Printing Office, Washington, D.C. 20402. 677. Abundance of benthic macroinvertebrates in n: estuarine areas. By Gill Gilmore and Lee Trent. April ly. i 11 figs., 3 tables, 2 app. tables. For sale by the Su; of Documents, U.S. Government Printing Office, Washii.f,, ... ,, , 20402. 678. Distribution, abundance, and growth of juvenile sockeye salmon, Oncorhynchus nerka. and associated species in the Naknek River system, 1961-64. By Robert J. Ellis. September 1974, v -I- 53 p., 27 figs., 26 tables. For sale by the Superintendent of Documents, U.S. Government Printing Office, Washington, D.C. 20402. 679. Kinds and abundance of zooplaiik i SCG icebreaker Glacier in the eastern Chukchi Sea, September-October 1970. By Bruce L. Wing. August 1974. iv -H 18 p., 14 figs., 6 tables. For sale by the Superintendent of Documents, U.S. Government Printing Office. Washington, D.C. 20402. 680. Pelagic amphipod crustaceans from the southeastern Bering Sea. •June 1971. By Gerald A. Sanger. July 1974, iii -f 8 p., 3 figs., 3 tables. For sale by the Superintendent of Documents, U.S. Government Printing Of- fice, Washington, D.C. 20402. 681. Physiological response of the cunner, Tau cadmium. October 1974, iv + 33 p., 6 papers, var the Superintendent of Documents, U.S. Gove.r Washington, D.C. 20402. ;;s, to hor sale by ung Office. 682. Heat exchange between ocean and atmosphere in North Pacific for 1961-71. By N. E. Clark, L. Eber, R. M. Laurs, J. A. Renner. and J. F. T. Saur. December 1974, iii -t- 108 p., 2 figs.. 1 table, 5 plates. 683. Bioeconomic relationships for the Maine lobster fishery wuh con- sideration of alternative management schemes. By Robert L. Dow, Frederick W. Bell, and Donald M. Harriman. March 1975, v -f 44 p., 20 figs., 25 tables. For sale by the Superintendent of Documents, U.S. Government Printing Office, Washington, D.C. 20402. 684. Age and size composition of the Atlantic menhaden, Brevoortia tyrannus. purse seine catch, 1963-71, with a brief discussion of the fishery. By William R. Nicholson. June 1975, iv -^ 28 p., 1 fig., 12 tables, 18 app. tables. For sale by the Superintendent of Documents, U.S. Government Printing Office. Washington, D.C. 20402. 685. An annotated list of larval and juvenile fishes captured with sur- face-towed meter net in the South Atlantic Bight during four RV Dolphin cruises between May 1967 and February 1968. By > Fahay. March 1975. iv -f 39 p., 19 figs., 9 tables, 1 app. tat bv the Superintendent of Documents, U.S. Government Printing Office, Washington, D.C. 20402. 686. Pink salmon, Oncorhi uscha, tagging experiments in southeastern Alaska. 1938-42 By Roy E. Nakatani, Gerald J. Paulik, and Richard Van CIcm- .A,|,rii 1975, iv -t- 39 p., 24 figs., 16 tables. For sale by the Superintendent of Documents, U.S. Government Printing Office, Washington, D.C. 20402. 687. Annotated bibliography on the biology of the menhadens, Genus Brevoortia. 1963-1973. By John W. Reintjes and Peggy M. Keney. April 1975, 92 p. For sale by the Superintendent of Documents, U.S. Government Printing Office, Washington, D.C. 20402. (i88. Effect of gas supersaturated Columbia River water on the survival of juvenile chinook and coho salmon. By Theodore H. Blahm, Robert J. McConnell, and George R. Snyder. April 1975, iii -t- 22 p., 8 figs.. 5 tables. 4 app. tables. For sale by the Superintendent of Documents, U.S. Government Printing Office, Washington, D.C. 20402. 689. Ocean distribution ol stocks of Pacific salmon, Oncorhynchtisspp., -teelhead trout, Salmo gairdnerii, as shown by tagging experiments. - of tag recoveries by Canada, Japan, and the United States, 1956- By Robert R. French, Richard G. Bakkala. and Doyle F. Suther- land. June 1975, viii + 89 p., 117 figs., 2 tables. For sale by the Superintendent of Documents, U.S. Government Printing Office, Washington, D.C. 20402. 690. Migratory routes of adult sockeye salmon, Oncorhynchus nerka, in the eastern Bering Sea and Bristol Bay. By Richard R. Straty. April 1975, iv -I- 32 p., 22 figs., 3 tables, 3 app. tables. For sale by the Superintendent of Documents, U.S. Government Printing Office, Washington, D.C. 20402. 691. Seasonal distributions of larval flatfishes (Pleuronectiformes) on the continental shelf between Cape Cod, Massachusetts, and Cape Lookout, North Carolina, 1965-66. By W. G. Smith, J. D. Sibunka, and A. Wells. June 1975. iv -(- 68 p., 72 figs.. 16 tables. 692. Expendable bathythermograph observations from the NMF.S/MARAD Ship of Opportunity Program for 1972. By Steven K. Cook. June 1975, iv -t- 81 p., 81 figs. For sale by the Superintendent of Documents, U.S. Government Printing Office, Washington, D.C. 20402. 693. Daily and weekly upwelling indices, west coast of North America, 1967-73. By Andrew Bakun. August 1975. iii -I- 114 p., 3 figs.. 6 tables. 694. Semiclosed seawater system with automatic salinity, temperature and turbidity control. Bv Sid Korn. September 1975. iii -^ 5 p.. 7 figs., 1 table. 695. Distribution, relati%'e abundance, and movement of skipjack tuna, Katsuiionus petamis, in the Pacific Ocean based on Japanese tuna long- line catches, 1964-67. By Walter M. Mat.sumoto. October 1975, iii 4- 30 p., 15 figs., 4 tables. 696. Large-scale air-si :s at ocean weather station V, 1951- 71. By David M. Husi. erR. Seckel. November 1975. iv -I- 44 p., 11 figs.. 4 tables. For sale by the Superintendent of Documents, U.S. Government Printing Office, Washington, D.C. 20402. 697. !-. drographic collections made by the research vessels Dolph „ luare // during 1968-72 from New York to Florida. By S. J. Wilk and M. J. Silverman. January 1976, iii -t- 159 p., 1 table, 2 app. tables. For sale by the Superintendent of Documents, U.S. Government Printing Office, Washington, D.C. 20402. 698. Summer benthic fish fauna oi k Bay, New Jersey. By Stuart J. Wilk and Myron J. Silver ary i976, iv -t- 16 p., 21 figs.. 1 table, 2 app. tables. Foi >die uy the Superintendent of Documents, U.S. Government Printing Office, Washington, DC. 20402. 699. Seasonal surface currents off Washington as shown by drift bn James Ingraham, Jr. and James R. Hastings, figs., 4 tables. ^ Island and 65. By W. May 1976, iii -I- 9 p., 4 MBL WHOI Library - Serials nil I 5 WHSE 04509 UNITED STATES DEPARTMENT OF COMMERCE NAtlONAl OCEANIC AND AIMOSPMEBIC *PMINISI«AtlON NAIIONAl MADlNf FISMEBIES SE«VICt SCIENTIFIC PUBIICATIONS SIAff ROOM 450 1107 N E A5IM SI SEAIIIE.WA 98105 OFFICIAL BUSINESS