_. DEPARTMENT OF COMMERCE rege eee _ BUREAU OF FISHERIES |) HUGH M, SMITH, Commissioner | ae _ FRESH WATER TURTLES: A SOURCE OF Pl By H. WALTON CLARK ; ae hiss " Scientific Assistant ; an ‘ & Beet Tyee GF Hi { ie AND ey sea Tas sf: - JOHN B. SOUTHALL 4 TE >) Shell Expert, U.S. Fisheries Biological Station, F airport, Iowa ny _ APPENDIX VII TO THE REPORT OF THE U. S. COMMISSIONER 8 OF FISHERIES FOR 1919 uM ae ie ae Pee veer Bureau of Fisheries Document No. 889 a - "PRICE, 10 CENTS “Sola aly by the Ss yrs of Documents, Government Printing Office Washinton, D.C, i ee Ba WASHINGTON | £0 \ GOVERNMENT PRINTING OFFICE — | en ages 1920 - | : J; Wonograph 4 s . dé DEPARTMENT OF COMMERCE BUREAU OF FISHERIES HUGH M. SMITH, Commissioner FRESH-WATER TURTLES: A SOURCE OF MEAT SUPPLY By H. WALTON CLARK Scientific Assistant AND JOHN B. SOUTHALL Shell Expert, U. S. Fisheries Biological Station, Fairport, Iowa APPENDIX VII TO THE REPORT OF THE U. S. COMMISSIONER OF FISHERIES FOR 1919 Bureau of Fisheries Document No. 889 PRICE, 10 CENTS Sold only by the Superintendent of Documents, Government Printing Office Washington, D.C. WASHINGTON GOVERNMENT PRINTING OFFICE 1920 CONTENTS. Introduction. ==2-=-=+ GRU ef init SELMA SOUR Ete eGR Ee PS EIN LNs Uy 2) 2 ie MHEXSH APPIN SUT Pees we a ee ull ee i le ee DistribuGion andi abuses Rae eee See eee ge ep SYERIS(OLASY rave lanvsielavovolsy (ue CeBy OUR Le a Shipment andifstoragess 0 sere Ne aes eee ee SOUnCES HOES Wp yee eee ee Market conditions and prices ________ Bia ee eh ee BrODOLEIOMNAO LOWES TCS srs tee oe oa es 2 ee eee Qualhiivsotenlesin 2 ee ee ee Pieters pean ear NO = Rhe Palio atOr SMe Wei es Nee eS ae OR ee eee Whe rEreshawa leriterraplas as 2. Sees Th se iy eS eee Commercials significance: tie. aes he ee ee ee MethodsSvomsea pire ssl ae Mere: Miele bei eed eS el ShiMmmMeningstora ses and Marke tinge Sse ee eee MHexsont-shelimcunilese see he Te ia Se ee Commerxncialssicninican ce, =2- ees ae ee eee aViethodsyotcantures 280 = eed: Mite) Dae St Pe ee SIA TIA See Le NE ee le eee EATIETINLES ROM NGUIEULES ees en SN re ees ee Se D. of b. AUG ;.2 a1920 > re es « « FRESH-WATER TURTLES: A SOURCE OF MEAT SUPPLY. By H. Watton Crark, Scientific Assistant, and JoHN B. SouTHa.y, Shell He«pert, Fisheries Biological Station, Fairport, [owa. INTRODUCTION. Among the aquatic food resources of the United States to which but little attention has as yet been given are the several species of edible turtles and terrapins of the rivers and lakes. One species of turtle, the famous and much-sought-after diamond-back terra- pin, has indeed long been utilized to the fullest extent consistent with the preservation of the species; and in recent years its propaga- tion on privately controlled farms has been inaugurated. The green turtle of the sea has also for a long time been so generally esteemed and extensively fished as to have been brought into actual danger of extinction. It is worthy of note that, while these two species have been regarded as delicacies of a high order, their relatives of the interior waters have been comparatively little utilized, at least under their proper names. It seems quite probable, however, that certain species of fresh-water terrapin have been rather widely used as an illegitimate substitute for the diamond-back terrapin. Within the last year or two a more general interest in the subject of the use of fresh-water turtles as food appears to have developed, and the Bureau has received many inquiries for information in regard to methods of capture of turtles and the preparation of their meat for the table. It is the aim of the present paper to supply answers to these inquiries, so far as the information is at present available. The data herein presented have been secured by the authors through correspondence with dealers in turtles and by personal visits to many markets in the larger and smaller cities of the Middle West and to various points of commercial fishery, principally on the Mississippi and Illinois Rivers. THE SNAPPING TURTLE. DISTRIBUTION AND HABITS. Commercially speaking, by far the most important species of the Mississippi Basin is the snapping turtle, Chelydra serpentina (Linn- wus) (Pls. I and IJ), known also in different localities and under different conditions as the snapper, mud turtle, and mossback. Its position in the market and in the consciousness of the people, the methods of its capture, and the like, are so closely bound up with its natural history that, in order to properly estimate its economic status, it is necessary to give in some detail the main facts regarding its habitat and habits. 3 4 FRESH-WATER TURTLES. In the first place, it has a broad geographic distribution, its range extending from Nova Scotia to the Equator and westward to the Rocky Mountains. It is, therefore, one of the most widely known of turtles; and the New Englander who has migrated to the banks of the Wabash, the Ohio, or the Mississippi, or to the prairies of Hlinois, recognizes it at once as an old acquaintance. This wideness of dis- tribution indicates a hardiness and an ability to live under greatly varying conditions. Not less important than its wide geographic distribution is its varied habitat. It is found in a great many different situations— in lakes, ponds, rivers, creeks, marshes, and bogs, and often travels overland a considerable distance from water. Only those familiar with the faunas of woodland ponds know the pretty, speckled tor- toise; only the travelers along shaded creeks know Blanding’s turtle; and to those who dwell afar from the larger lakes and rivers the soft-shell is known, if at all, only through the medium of books or museums. There are few, however, to whom the snapping turtle is a complete stranger. In addition to its great variety of habitat, the leisurely habits of the snapper make it familiar. When approached it does not beat a hasty retreat, as do most other animals, but holds its ground against all comers. Many who are fairly familiar with the pond turtles and terrapin know them principally as a sudden splash from a log, and many who visit the sand bars where the soft-shells love to bask know them principally as a streak over the sand, as a splash at the water surface, and as a wake like that made by a big fish. The snap- per, however, is the living embodiment of the status quo. He is will- ing to wait for the closest and most scrutinizing inspection; and, closely gazed upon, his appearance may have much to do with his being used as an article of food. One could not exactly call him handsome; a better statement would be that he looks good enough to eat. His corpulent, bulging body, projecting in rolls from his inade- quate shell gives above all else the impression of meatiness. The rough skin, not greatly unlike that of a freshly plucked chicken, and the narrow cartilaginous bridge and small plastron all suggest easy preparation, much edible material, and little waste. All the other details about this species—manner of capture, the peculiarities of the market, and, finally, the methods of cooking— are, aS will be observed, closely connected with its life history and habits. SEASONS AND METHODS OF CAPTURE. During the summer the snappers are rather unsocial. They are solitary in habits, the individuals being widely scattered, so that it is difficult to take an accurate census of them. Because of these solitary summer habits, there is, generally speaking, very little fishing for this species in that season. There may, of course, be local exceptions ; thus it was reported that throughout at least part of the summer of 1913, along the Grand River, Mich., there was an active turtle fishery, both snappers and soft-shells being caught in seines and shipped to the large near-by cities, such as Detroit and Chicago. In general, how- ever, the summer is a dull season for turtles. One market man re- marked that “the turtle is like the oyster, only in season when the FRESH-WATER TURTLES. 5 name of the months contains an ‘r.’” Nearly all the other market men explained the situation by saying that “practically all the turtles are used for soups, and few people eat soups during hot weather.” The situation is perhaps a little more complicated; it may have to do also with capture and storage. In summer occasional snappers are picked up while on their migrating trips; a few are now and then caught on set lines; and fishermen sometimes catch them in their seines or in baited hoop nets set for fish. It is doubtful whether any of these occasional summer-caught snappers get into the general market. The greater number are released, and a few are locally consumed. During the autumn and early winter the snappers collect in con- siderable numbers and hibernate in suitable locations. In the vi- cinity of Muscatine, Iowa, it was stated that a favorite place for turtles to hibernate is in muskrat holes. According to report, as much as 5 tons of turtles have been taken from the various muskrat holes in one season. Our informant also stated that as many as 26 individuals have been found in one muskrat burrow, while at another time 1,420 pounds were obtained in one run. From 500 to 1,000 pounds of turtle were estimated as a recent catch for one day. Along the sloughs of the Mississippi they congregate about and _under old logs. A specific instance was cited of a fisherman who obtained 20 snappers, weighing from 10 to 20 pounds each, under a log in one of the sloughs of the Mississippi River. Along the Illinois River, the Cedar River of Iowa, and, indeed, wherever there are springy places near large bodies of water, the snappers “mud up” for the winter. Jt is from their hibernating places that the greater number of snappers found on the market are taken, and the captors are usually fishermen or trappers. The methods of capture employed for the various forms of winter quarters—whether muskrat holes, old logs, or springy places—are all, so far as could be learned, very much the same. The implement used is a stout hook, made by bending an iron rod at one end, sharpening the short or hook end, and leaving the other as it is or driving it into a wooden handle to make it better to manipulate during very cold weather. If there is much ice, it is cut and the hook probed or prodded about until a turtle, which feels much like a chunk of wood, is encountered. It is then pulled out by the hook. It issomewhat difficult to land large turtles, although they are benumbed and offer little resistance. The turtle catchers rely upon their hunting instinct to discover the turtles, and when a good place is found many can be taken from it, as indicated in the account given above. Activity in snapper catching may be stimulated or depressed by widely different circumstances. .The general wage scale probably has little infiuence, since fishermen and trappers are as much at- tracted by the fascination of their calling as by its emoluments and are not likely to desert their profession for a better-paying job. A high price for pelts and furs may divert greater attention to trap- ping. One fisherman said that the existence of saloons greatly helped the turtle market, as they dealt extensively in turtle soup. Under favorable conditions the turtle catcher can make very fair wages and still sell the meat at a reasonable price. During the winter of 1918-19 a market man reported: “Turtle meat is the cheapest meat I can buy.” 6 FRESH-WATER TURTLES. SHIPMENT AND STORAGE, Generally speaking, the men who catch the turtles make no attempt to hold or store them but ship them to market as soon as they can collect a sufficient quantity. The turtles are usually shipped in barrels with holes bored through the bottom and through the sides for ventilation and with burlap nailed over the top. In this condition, of course, the contents are not open for observation, and a thriving turtle fishery may be in active operation in a particular region unknown to the general public. Since barrels have become expensive, the catches are some- times shipped in crates similar to those used for chickens. Upon arrival at the larger markets the containers may simply be stored in a cool place, where the turtles will remain in hibernation, ready for disposal by wholesale or retail as the market demands. It is with the return of warm weather that the storage question be- comes important. A good many dealers do not attempt to hold turtles at all but pass them to the consumer as rapidly as possible. In the basement of a large wholesale market at Chicago, a cool moist situation, there is a large turtle pen, or, rather, a series of pens, which will hold about 24 tons of the living animals. They do very well here until summer arives, when the loss is considerable. Here the snappers are washed off occasionally, but the problem of feeding them has not been satisfactorily solved. It might do much toward stabilizing the market if the intermedi- ate buyers along the rivers, in order to be ready for early fall deliv- ery, would establish large pounds to retain the spring catch, as well as the occasional turtles taken during the summer. It was stated that there was formerly a storage pen at Clear Lake, Dl, where 25,000 or 30,000 turtles could be satisfactorily kept; but that in recent years, owing to changed stream conditions, together with the consequent diminution in abundance of the animals, the pen has been abandoned. At Grafton, Ill., a pound was observed which has been in existence about four years and which was originally designed to retain carp, as well as turtles and terrapin. It is located near the river and comprises a pond supplied by seepage from the river and by rainfall. The size of the pond varies, therefore, accord- ing to weather and stream conditions, but at the time observed -its dimensions were about 207 by 135 feet. This pond, having banks of considerable steepness, occupies nearly the entire area of the pen. The walls are riprapped with stone and surmounted by a wire fence of 1-inch-square mesh. The pound was said to contain 4,000 or 5,000 terrapin and 2 tons of snappers. It was observed at Grafton, as elsewhere, that quantities of terrapin are always estimated by number, and snappers by weight. Two kinds of terrapin were dis- tinguished; the river terrapin described as “rough,” which proved upon examination to be Graptemys lesueurii, and the “pond ter- rapin,” described as “striped,” which proved to be Pseudemys elegans. The former was regarded as much superior to the latter. During the summer, according to information furnished the authors, the turtles had been fed on fishery waste and on hog lights, of which they appeared to be very fond. They were being shipped to the markets of Boston and Philadelphia. Sy FRESH-WATER TURTLES. a SOURCES OF SUPPLY. Dealers at Chicago mentioned their source of supply as the Central States—Wisconsin, Minnesota, Iowa, Indiana, South Dakota, and Michigan—although they also received snappers and terrapin from Kentucky. Specific localities mentioned were Winona, Minn., and Guttenburg and Muscatine, Iowa. At*one time the Llinois River was an important source of supply during the winter, and parts of it, especially toward the mouth, continue to be so. Kofoid states :¢ “The Illinois River and its backwaters, under present conditions, contribute annually * * * 15,000 dozen turtles” (probably in- cluding both snappers and terrapin). During the progress of the investigation of the Upper Illinois in June, 1918, there was no fishing at all on account of the closed season on fishes and, naturally, no cap- ture of turtles. MARKET CONDITIONS AND PRICES. The amount of turtles handled by the markets of the large cities does not, of course, indicate the quantity which is consumed locally. As stated above, the winter is by far the most active market season. However, along the rivers the turtles are eaten the year around, whenever they can be obtained, fried soft-shells being especially con- sumed during the summer. The wholesale’market in Chicago pre- viously referred to handles about 10,000 snappers a year, valued at $5,000. Its buyer thinks he could handle a ton a week. Another market handled 1 to 14 tons a month. The snappers on the Chicago market range in weight from 5 to 25 pounds each. At Peoria they were said to reach a weight of 30 pounds, the average being 7 or 8 pounds. According to the census of 1908, the Mississippi River Basin produced 713,000 pounds of turtles and terrapin, with a value to the fishermen of $25,000. In these days of uniform prices for standard commodities ,a strik- ing feature of the turtle market is the variety of prices. A turtle catcher at Muscatine, Iowa, stated that he could get 5 cents a pound live weight or 10 cents a pound dressed at Davenport. He said there was more money selling them alive, as they dressed off more than half, and also the trouble of dressing them had to be considered. One dealer in Chicago sold in wholesale lots at 8 cents a pound and retailed at 10 cents. A buyer quoted them at 6 to 7 cents a pound live weight. At St. Louis it was said that “turtle meat is selling higher than ever before, it being now (June, 1918) about 18 cents; whereas it used to be from 12 to 15 cents a pound.” A published commercial price list (Chicago, 1918) quoted live snapping turtles, usually 10 cents per pound, falling to 9 cents for the week of June 8, to 14, and rising to 11 ¢ents July 20 to 26, 1918, and turtle meat, strictly fresh, 16 to 17 cents, rising during the progress of the summer. In the early part of the season frozen turtle meat was listed at 15 cents. Many of the points covered above regarding source of supply, prices, and amount handled can best be illustrated by quoting from « Kofoid, C. A.: Plankton studies. IV. The plankton of the Illinois River, 1894-1899, p. 562. Bulletin, Illinois State Laboratory of Natural History, Vol. VI, 1901-1903, Art. II. Champaign. 8 FRESH-WATER TURTLES. a letter received June 4, 1918, from a fish company in La Crosse, Wis., which goes into the subject with unusual fullness of detail: We receive turtles from all of the commercial fishermen of the Mississippi, no one in particular fishing for them especially, as usually they are caught in such small lots that the average fisherman does not make much of an effort to gather them up. Usually the price this last year has been from 3 to 4 cents, and, getting them in such small quantities, the fishermen figured not money enough in them to bother with them. We also get quite a few from the Indians who are moving about up and down the river. The general selling price has been (Philadelphia) from 7 to 12 cents, the high price being in the extreme cold weather, and usually the wholesale price runs from 43 cents f. 0. b. shipping stations, and the average quotation from the wholesale houses in Chicago and other places is from 7 to 9 cents. The following is the amount that we have handled since November, 1917, and conditions were such that we have had to carry quite a lot of this stock on hand, as we were unable to sell it at all times or very readily: Pounds. INOVember 22228 2s seo ee ee ee aS 13, 166 SCOT Cr aa oe ALE ES Se ee ee a 2. bd! Jannaty 2 ee ee eo eee ee ee ee 1, 689 INEDEUALY pe Se ee ee ee een eee ae 90 Misr Gisele io eee Dt Set Ee ee be et ee 1, 496 PAP So ae ee Be ee a ee is ee 5, 206 UY See is eee rs ek ee ee eS 5, 411 Totaleot =e See ee ee eee 29, 609 The demand has been diminishing from year to year. Ten years ago we used to handle them by the carloads and could always find a ready market in New York, whereas at present there is very little demand in New York; in fact, practically none. The kind of turtle we are handling is what is known locally as the mud or snapping turtle. There is some demand for the-soft-shell turtles, but not enough to warrant our handling them. At Grafton, Ill., it was stated that Boston afforded the best market for terrapin and Philadelphia for snappers. PROPORTION OF WASTE. In the consideration of any article to be used for food the item of waste is an important feature, since this must be accounted for somewhere between the producer, or im this case the captor, and the consumer. The opinion of dealers differed somewhat as to the amount of waste in the snapping turtle. It varies considerably ac- cording to the manner of cleaning. One dealer thought the turtles would dress off more than half, large ones dressing off less than small ones. Another thought a 12-pound turtle would dress off to 6 pounds, and a 5-pound one to 3 pounds. A dealer at Fort Madison, Iowa, said that by discarding the shell they would dress off two- thirds, but that the shell could be used in making soup, serving as a soup bone. One dealer added that “ in making | soup the liver and eggs are used, so there is not so much waste.” In the Washington market some snappers were seen dressed for sale. The epidermis hav- ing been scalded off, and the scutes or epidermal plates of the shell removed, the remaining portion presented a very attractive appear- ance. Along the backbone of the turtle is a considerable mass of flesh known as “tenderloin,” which in rapid or “shop” cleaning is discarded with the shell, but in careful cleaning is saved, thus re- ducing the waste. At Pekin, Il., where turtles were cleaned rapidly, discarding tenderloin, liver, and eggs, as well as shell, a 14-pound FRESH-WATER TURTLES. 9 snapper furnished 6 pounds of meat. At Fairport, Iowa, one which weighed 11 pounds produced 54 pounds of meat when carefully dressed, with tenderloin saved, but shell, liver, etc., discarded. The relatively small difference in market prices between live turtles and turtle meat among practiced dressers and dealers (10 cents alive, 17 cents dressed) does not account for so much waste. since one must also consider the labor of dressing the meat. In considering the subject of waste it may be of interest to com- pare turtles with other familiar objects, such as fish and poultry, which may be bought either whole or dressed to suit the wishes of the buyer. The proprietors of some of the fish markets on the Mississippi (Muscatine, Iowa, and New Boston Ill.) and on the Illinois (Peoria), who have much experience weighing fish, since they buy them living from the fishermen and sell most of them dressed, were consulted in this regard, and their reports agreed very closely. Carp were reported to dress off about 30 per cent, or from 30 to 40 or 45 per cent, the higher percentages applying to the females full of roe, which is usually discarded. Buffalofish were re- ported to dress off somewhat less than carp. Catfish differ greatly, according to kind and condition, but dress off on the average 60 pounds to the 100. At the Fairport biological station two ripe male carp weighting 5 pounds 8 ounces were dressed. The head, scales, and entrails weighed 1 pound 3 ounces and the milt 8 ounces, leav- ing the weight of the dressed fish 3 pounds 12 ounces, a waste of 31.8 per cent. In looking through publications at hand devoted to poultry, under the subject of waste, cocks were reported to dress off 23.4 per cent, cockerels 26 per cent, hens 24.2 per cent, and pullets 25.8 per cent of the live weight. These wastes, of course, leave bones out of consideration. For fuller estimates and comparisons of the absolute amount of wastes of various fishes the reader is referred to a publication by Dr. W. O. Atwater, published as an appendix to the report of the United States Commissioner of Fisheries for 1880.2 Unfortunately our data on the flesh of turtles are not in such a condi- tion that they can be compared with the fish discussed in that article. To one who has not watched the process it might appear that turtles would be difficult to dress. There is not nearly the labor involved in cleaning a snapper, however, that there is in plucking and dressing a chicken, and a novice would acquire the knack even more quickly with the reptile than with the fowl. The bones and joints are not so thoroughly ossified in the turtle and offer less resistance to the carver. Along with economical considerations it may be mentioned that one dealer remarked that “8 pounds of turtle will make soup for 50 people.” Another phase of the subject which has to do with economy, but which is more closely related to the subject of cooking, will be discussed in that connection. QUALITY OF FLESH. The value of turtle flesh as a food and the extent to which it can be used as a substitute for other meats is a question to be solved a Atwater, W. O.: Report of progress of an investigation of the chemical composition and economic values of the fish and invertebrates used for food. Appendix D, Report of the Commissioner, U. 8. Commission of Fish and Fisheries, for 1880, pp. 231-286. Washington. : 10 FRESH-WATER TURTLES. by nutrition experts, by chemists who can compute its value in terms of calories, carbohydrates, proteins, digestibility, etc., and by experiments with “ diet squads.” This is fundamentally the most important question. Certain it is that the white and the deep-red, dressed meat as displayed in the fish markets is very attractive in appearance. Scarcely less important, however, is the question of its gustatory qualities; for whatever gives zest to our necessary foods is by no means to be despised. References in literature to the relative merits of different species of turtle are rather few. Nash® says of the common soft-shelled turtle (Amyda spinifera) : “ The flesh of this turtle is considered a delicacy; ” and of the snappers: “ Their flesh is considered good and in some localities they are much sought after for making into soup.” The fiavor of the snapper, like that of other sorts of game or meat, varies somewhat according to the habits of the individual animal and according to the method of preparation. Perhaps the best method of approach to this phase of the subject is a consideration of the habits of the turtle. The snapper is very voracious, feeding on frogs, fishes, crayfish, young water birds, etc. It has been accused of catching and eating young ducks. Those examined at Lake Maxinkuckee, Ind., had been eating snails (Vivipara contectoides), and seven individuals exam- ined at the Pekin (Ill.) market, caught at Fort Madison, Iowa, in June, 1918, contained solid masses of mud. Two had fragments of crayfish in the mud, one a piece of wood, and another the bones of a frog.