TPWD 1955 F-4-R-2 #164: Inventory of species present in Possum Kingdom Lake, Palo Pinto County, Texas

--- Page 1 --- on STATE Texas PROJECT NO. F-4R-2 Job B-4 PERIOD June 1, 1954-October FILE 31, 1955 SEGMENT COMPLETION REPORT by Leonard D. Lamb Project Leader TITLE Inventory of species present in Possum Kingdom Lake, Palo Pinto County, Texas. OBJECTIVES To determine the species present and their relative abundance as well as to determine the ecological factors influencing their distribution. HISTORY AND DESCRIPTION Possum Kingdom Reservoir is a multipurpose reservoir providing water for hydroelectric, irrigation, and municipal uses. It is owned and operated by the Brazos ‘iver Conservation and Reclamation District and was completed in 1941. This lake is subject to heavy fluctuations in water level because of the variations in demand by power and irrigation needs. This is a clear water lake that impounds 19,991 surface acres at spillway level and has a 310 mile shoreline. The lake is a long narrow body of water that winds among the foothill type mountains that comprise the terrain of these portions of Palo Pinto, Stephens, Young, and Jack Counties. The major portion of the lake is in Palo Pinto County but when full extends into the other counties named. The shoreline is irregular and consists of gently sloping valleys and high limestone bluffs. The original vegetation was not removed because of early rains that filled the basin in six days soon after completion of dam. This vegetation has been augmented by the saltcedar, and willows that have encroached upon the marginal area that remained exposed during the long period of low water that preceded the refilling in 1953. The aquatic vegetation present is not a problem except during periods of low water when much of the better fishing areas are choked with Najas guadalupensis to the extent that a motor boat is unable to penetrate the large fields of this plant. This condition exists in areas where the water depth is less than six feet. In water areas where the depth is above six feet the fishing was generally good above these weed beds which provided both feeding and resting cover for the fish present. FINDINGS Table 1 presents the checklist of species taken in both seine and net collec- ions. This total of 33 species includes 10 species not present in the checklist for the previous segment and fails to include two species taken in the 1953-54 segment. The Rio Grande tetra and the Striped mullet were introduced as bait minnows and have not --- Page 2 --- Ce become established as yet. The species that are new to this checklist are; Shortnose gar, Texas grey redhorse, Sharpnose shiner, Southern sand shiner, Blackspot shiner, Yellow bullhead, Blackstripe topminnow, Kentucky spotted bass, Western spotted sunfish, and Black crappie. Eleven seine and 120 net collections were made. Table 2 shows the results of the eleven seine collections at eight seining stations. The seining station number 2 was abandoned when high water made collections here impossible. A total of 19 species and 1,142 specimens were taken. The most numerous species in the seine collections was Bluegill sunfish followed by Largemouth bass and Plains red shiner. The comparison of the catch of game and rough species is given in Table 3. All ecatfishes are included in the game fishes since they are so regarded in this vicinity and are much sought after by the local fisherman. The predominance of rough fish in the catch is quite marked since of the 1,464 specimens taken 71.17% were rough fish and 79.39% of the 1,518.52 pounds were of these less desirable species. In Table 4 the results of the netting of Possum Kingdom are given in terms of the success by months in number and pounds of fish taken per 100 feet of net set. The 120 nets set totaled 12,675 feet and took 1,466 fish weighing 1,520.05 pounds. The average number of nets set per month was 7.06 and they took a total per month of 86.23 fish weighing 89.41 pounds for an average catch per 100 feet of net of 12.22 fish weighing 12.65 pouncs. The length, weight and coefficient of condition date presented by Table 5, was based on the standard length in millimeters and weight in grams for all specimens taken in net collections. The monthly variations in the distribution of species in the net catches on Possum Kingdom by both number and weight are shown in Tables 6,7,8, and 9. The gizzard shad provided the largest number of specimens making up 52.6% of the total number of fish caught. Bluegill sunfish were the most numerous game fish making up 10.18% of the total number. Gizzard shad also make up the greatest weight and percentage of total. They weighed a total of 468.91 pounds for 30.91% of the total catch. Smallmouth buffalo weighed 315.14 pounds and were 20.77% of the total weight. Channel catfish and Large- mouth bass weighed 109.05 and 103.45 pounds respectively and make up 7.19% and 6.82% of the total weight. Table 10 shows the number of each species caught per month in each 100 foot gill net set overnight in Possum Kingdom Lake. Gizzard shad dominated the catch each month and averaged 6.18 for the entire period. Bleugills and Largemouth bass were the predominant game species with 1.34 and .88 average per 100 feet of net set for the entire period. The results of the examination of stomachs of fish taken in gill nets are presented by Table 11. The examination of 206 stomachs that contained food showed 70 to contain fish or fish remains. The sunfish and frequently catfish had been feeding on algae, usually Najas. This may have been accidental in some cases but the majority contained an amount sufficient to indicate deliberate intent. The one fish containing fish eggs was a small bluegill. The stocking of Possum Kingdom Lake prior to 1945 is not known since several --- Page 3 --- 36 fish hatcheries, both State and Federal, stocked this Lake at irregular intervals. - The stocking since 1944 is known since the entire stocking has been done by the Pos- sum Kingdom State Fish Hatchery. Table 12 contains the numbers of each species seked into this lake each of the years 1945 through 1955. The Largemouth Bass have been most heavily stocked as almost 97% of the total stocking was made up of this species. DISCUSSION AND CONCLUSIONS The seine samples indicate that the hatch of largemouth bass was rather adequate since they were present in comparatively large numbers at almost every seining station. The production of forage species appears to be adequate to support the game fish population and the physical condition of the game fish taken indicate this to be the case. The predominance of rough species in the net catches from Possum Kingdom is to be expected since the lake is fourteen years old and the usual history of re- servoirs is that the first few years provides the best game fish production. The trend is toward rough species as the lake ages. Possum Kingdom has resisted the af- fects of age with some success. This is probably due to the extreme fluctuation of the water level which provides many acres of newly inundated vegetation. This has the effect of renewing portions of the lake periodically and provides stimulus for game fish production. Despite the contract netting program that has been in operation on this lake for several years the relative abundance of rough species is quite pronounced. The success of gill netting in terms of number and pounds of fish caught per month per i00 feet of net set varies with the season and weather conditions (Table 4). The high average number per net corresponds rather closely with the shad - tch, while the increase and decrease in weight appear to correspond to the appearance the buffalo in the catch. (Table 10). The validity of annulus formation in this area has been found to be open to question and for this reason the taking of scale sam ples was discontinued. The length, weight and coefficient of condition data has been continued and the physical condition appears to be satisfactory in all species examined. There was little evie dence of parasitism or disease. The infrequent occurrence of an apparently cancerous condition in gizzard shad constitued the observations on disease and parasitism. The distribution of species in the net catch shows the gizzard shad to be the most abundant species in both number and weight since 52.6% of the total number and 30.91% of the total weight were shad. The percentage of the weight provided by each species was more evenly divided than was that of the numbers, since the relative sizes of the species tended to compensate for the superiority in numbers provided by the shad Buffalo and gar provided 20.77% and 15.15% of the total weights, although they were only 6.08% and 3.55% of the total number respectively. (tables 6,7,8, and 9). The tendency of fish to regurgitate food when captured in a net together with the rapid rate of digestion at high temperatures prevents the collection of much of the data that might be present at the time of capture. There were only 206 fish that contained food which was recognizable. This constitutes 14% of the net catch. The buffalo, carp, carpsuckers, suckers, and shad that contained food did not contain any recognizable item. The food mass resembled a greenish muck. Algae occurred in the stomachs of 95 fish. There is little doubt that a number of these fish took the algae ’ the process of feeding on organisms found amongthe vegetation, but catfish and sun~ sh had taken Najas in sufficient quantity to indicate a deliberate feeding on this material. The importance of fish in the diet of species taken is indicated by the fact that 70 fish or about 34% of the total containing food had been feeding on fish. The --- Page 4 --- h, one stomach that contained fish eggs was that of a bluegill sunfish which may have taken the eggs accidentally. RECOMMENDATIONS 1. It is recommended that the apparent overabundance of rough species be given careful study to determine means of controlling these species. 2. It is further recommended that the operations of the contract netters be studied in order that more effective use may be made of this method of control of undesirable species. 3. Experimental work on nets, traps etc. is suggested in an effort to make the rough fish removal as efficient as possible. 4, Continuation of the present inventory work is advised in order that data may be obtained that will aid in evaluating the work done with regard to the effect it has on the game fish harvest. SUMMARY 1. Possum Kingdom is a clear water lake built in 1941 by the Brazos River Conservation and Reclamation District and located on the Brazos River near Graford. It is a multipurpose reservoir built for hydroelectric, irrigation and municipal uses. 2. This lake covers 19,991 surface acres at spillway level and is situated in Palo Pinto, Stephens, Young, and Jack Counties. The lake is long and winding having a 310 mile shoreline. 3. The original vegetation was not removed from the lake basin before flooding and has been augmented by saltcedar and willows that grew up on the margins during the recent drouth and is now inundated. . 4, Najas guadalupensis chokes the shallow areas during periods of low water but does not appear to offer any problem when a normal lake level is reached. >. A total of 33 species was taken in seine and net samples during the 1954-55 segment. Ten species were added to the checklist from the 1953-54 segment and two were not found that were present in the previous checklist. These were Rio Grande tetra and striped mullet. These species were introduced as bait minnows but did not become established. 6. Rough species make up 71.17% of the total number in the net catch and 79 39% of the total pounds. Gizzard shad made up the greatest number and weight of all the species taken. This species composed 52.6% of the totalnumber and 30.91% of the total weight. 7. The most popular food among the 206 fish, whose stomachs contained food, was algae, generally Najas, since 95 or 46% had been feeding on this substance. The next food in relation to the preference shown was fish as 70 or 34% of the fish con=- taining food had consumed fish. Fish eggs were found in only one specimen, a bluegill. 8. Hatchery stocking of this lake prior to 1944 is not known since both State and Federal Hatcheries participated. Since 1944, 97% of the 15,555,652 fish stocked in Possum Kingdom Lake were Largemouth Bass. --- Page 5 --- - Pable 1. Checklist of Fishes from Possum Kingdom Lake, June 1, 1954-October 31, 1955. Renner nnn nna o 8 © ° BR HOW OND FWD» 12. PPP WI UW e¢ fo & 16. ae co 19. 20. 21. 22, 23. oh 25. 26 27. 28 29. 30. 31. 32. 336 ° ° ° SCIENTIFIC NAME Lepisosteus platostomus Lepisosteus productus Lepisosteus osseus Dorosoma cepedianum Ictiobus bubalus Carpiodes carpio Moxostoma congestum Cyprinus carpio Notropis oxyrhynchus Notropis fumeus Notropid venustus Notropis lutrensis Notropis deliciosus Notropis atrocaudalis Pimephales vigilax Ictalurus punctatus Ameiurus natalis Pilodictus olivaris Fundulus olivaceus Gambusia affinis Morone chrysops Micropterus punctulatus Micropterus salmoides Chaenobryttus coronarius Lepomis cyanellus Lepomis punctatus Lepomis microlophus Lepomis macrochirus Lepomis auritus Pomoxis annularis Pomoxis nigromaculatus Percina caprodes Aplodinotus grunniens COMMON NAME shortnose gar spotted gar longnose gar gizzard shad smallmouth buffalo river carpsucker Texas gray redhorse European carp sharpnose shiner Southern ribbon shiner blacktail shiner Plains red shiner Southern sand shiner blackspot shiner parrot minnow channel catfish yellow bullhead flathead catfish blackspot topminnow mosquitofish white bass spotted bass largemouth black bass warmouth green sunfish Western spotted sunfish redear sunfish bluegill sunfish yellowbelly sunfish white crappie black crappie Southwestern logperch freshwater drum --- Page 6 --- Table 2. Species of Fishes Collected by Seining, from Possum Kingdom, by Number of each Species taken each Seining Station, June 1, 1954-October 31, 1955. FISH SPECIES 1 3 4 5 6 8 9 Total Dorosoma cepedianum 8 2 1 1 12 Ictiobus bubalus 1 1 Cyprinus carpio I. 1 Notropis oxyrhynchus 1 2 3 Notropis fumeus 15 10 25 Notropis venustus 1 1 53 55 Notropis lutrensis 87 5 13 52 157 Notropis deliciosus 7 5 12 Notropis atrocaudalis 12 51 63 Pimephales vigilax 3 22 2 10 37 Fundulus olivaceus 1 1 1 3 | Gambusia affinis 27 9 3 2 hy | Micropterus salmoides 28 72 6 21 62 2h 213 Lepomis punctatus 17 1 11 7 36 | Lepomis Cyanellus 2 2 _ Lepomis microlophus 14 5 26 25 70 Lepomis macrochirus 82 4 5 51 93 2 ho 280 Lepomis auritus 8 13 7 34 20 47 129 Percina caprodes 2 2 Totals 167 129 131 140 366 69 140 1,142 --- Page 7 --- Table 3. A comparison of Game and Rough Species caught in Gill Nets from Possum Kingdom Lake, Texas, June 1, 1954-October 31, 1955. Total No. Specimens Caught L467 Total Wt. Specimens Caught (lbs.) 1518.52 Average Wt. Per Specimen (lbs) 1.04 Total Weight of Rough Fish (lbs.) 1205.54 Total Weight of Game Fish (lbs.) 312.98 Total No. of Rough Fish 1043 Total No. of Game Fish 422 Average Wt. Per Rough Fish (lbs.) 1.06 Average Wt. Per Game Fish (lbs.) 74 Percent Rough Fish ( by weight) 79.39% Percent Game Fish ( by weight) 20.61% Percent Rough Fish (by number) 71.17% Percent Game Fish (by number) 28.83% * All Catfish included in Game Fishes --- Page 8 --- Table 4. Suecess of Gill Netting at Possum Kingdom Lake in Terms of Number and Pounds of Fish Caught, June 1, 1954-October 31, 1955. Avg. No. Avg. No. Avg. No. Avg. No. No. of No. Ft. No. Fish No. Lbs. Fish Fish Fish per Lbs Fish Lbs. Fish Month ' Net Sets Net Sets Caught Caught per net 100' Net per net per 100! June 5 600 73 78.28 1h 12.0 15.66 13.05 July 8 925 78 113.80 9.7 8.6 14.23 12.30 August 6 600 173. 65.30 12.2 12.2 10.88 10.88 September 8 850 63 38.23 7.9 Tou 4.78 4.50 October 8 900 54 46.91 6.7 6.0 5.86 5.21 November - 575 17 32.5 3.4 3.0 6.47 5.63 December 6 725 56 71.15 9.3 ToT 11,86 9.81 January 3 300 33 6390 11.0 11.0 21.30 21.30 February 11 1125 87 83.19 7.9 7.8 7.56 7.39 March 10 1125 240 156.38 24.0 21.3 15.64 13.90 April 8 875 66 90.96 8.3 7.5 11.37 10.40 May 8 900 150 216.59 18.8 16.7 27.07 2h..07 June 6 625 62 53.60 10.3 9.9 8.94 8.58 July 8 850 4S 72.40 5.5 5.4 9.05 8.52 August 8 700 48 37.40 6.0 6.9 4.67 5.34 September 8 700 251 240.40 31.4 35.8 30.05 34. 34 October 4 300 70 59.20 I7s5 23.3 14.81 19.75 Totals 120 12,675 1,466 1,520 05 204.3 201.6 220.20 214.97 Monthly Av. 7-06 745.58 86.23 89.41 12.01 11.86 12.95 12.65 --- Page 9 --- Table 5. Length, Weight, and Coefficient of Condition of Fish Collected by Gill Nets from Possum Kingdom Lake- June 1, 1954--October 31, 1955 Std. (gm) Species Total No. Length Range Length Av.Weight Range Weight Av. K Range K Average » productus 9 4.09 780 530 417 2495 976 2536-.70 66 L. osseus 52 230 81140 786 496 5783 2059 D. cepedianum 195 115 LO 222 25 510 237 2823.0 2.2 I. bubalus 96 162 WhO 348 152 2835 =1503 2,284.10 3.6 carpio 80 240 377 293 255 12h7 72k 1,05=3.,80 2.9 Cy. carpio 23 225 450 316 359 =. 2013 882 2.0-2.97 2.6 punctatus 56 198 550 352 123 2863 913 1.35=2.50 2.1 P. olivaris 1 410 410 410 1021 1021 1021 1.48-1.48 1.48 M. chrysops 31 147 300 266 80 680 488 1.85-2.89 2.6 M. punctulatus 1 300 300 300 680 680 680 249-2.49 2.49 M. salmoides 715 167 4-70 280 102 2920 627 1.8-3.,40 2.9 L. microlophus 165 90 150 133 2h 193 98 2,88-5.20 4.2 L. macrochirus 16 110 170 148 45S 175 112 2,88-5.20 3.4 C. coronarius 2 161 170 166 Lh5 170 158 2, 4h-2.98 ae7l L. auritus 14 120 150 138 8h. 145 111 2.78-4..85 4.2 P. annularis 42 125 260 187 59 458 185 2,154.9 2.8 P. nigromaculatus 3 127 230 173 54. 379 189 2.66-3.20 3.6 A. grunniens 17 145 2h0 196 68 318 170 2.03-2.35 2.2 --- Page 10 --- Table 6. Species Distribution in Net Catch by Number in Possum Kingdom Lake-June 1, 1954-October 31, 1955. Month June July Aug Sept Oct Nov Dec Jan Feb Mar Apr May June July Aug Sept Oct Total L. platostomus 1 iL L. productus Ty 2 1 1 8 L. osseus 5 2 2 3 4 6 4 a5 1 \ 56 D. cepedianum 27 43 4Q 19 Th ne) 33 17 73 #4170 42 6h 3h 8 19 #79 43-770 I bubalus 5 9 2 2 3 149 1 1 4 5 2 8 2 20 3 90 C carpio 1 3 2 6 ll 3 8 3 4 Z 2h 7 79 Cy. carpio 3 3 1 2 1 1 5 1 1 4 4 26 I. punctatus 10 4 5 3 1 3 6 2 6 3 a 3 4 1 53 A. natalis 1 1 P. olivaris 1 1 M. chrysops 2 2 1 1 3 1 3 2 12 #1 T 2 37 M. punctulatus 1 1 M. salmoides 5 2 6 9 2 2 4 4 5 5 1 1 2 8 43 y 103 C. coronarius 1 1 1. 3 L. microlophus 2 2 1 1 1 3 1 5 16 L. macrochirus 11 9 4 8 1 30 «3 20 9 17 3 31 3 1h49 L. auritus 2 7 5 14 P. annularis 2 6 2 7 1 1 1 2 2 12 2 38 P. nigromaculatus 1 i 1 3 A. grunniens 1 UG 17 M. congestum 1 dL. Total 73 78 73 ©8663 54 17 «#56 33 06«687)— ah «66S 150 62 4S 49-251 =670~—Ss1 467 --- Page 11 --- Table 7. Species Distribution in Net Catch by Percentage of Number in Possum Kingdom Lake-June 1, 1954-October 31, 1955. i Month June % L. platostomus L._ productus L. osseus 6.94 D. cepedianum 37.50 I bubalus 555 C. carpio 1.39 Cy. carpio 17 I. punctatus 13.89 A. natalis P. olivaris M. chrysops 2.78 M. Punctulatus M. salmoides 6.94 C. coronarius L. microlophus 2.78 L. macrochirus 15.28 L. auritus P. annularis 2.78 P. nigromaculatus A. unniens 100.00 July August I, v 2.56 2.77 55.13 67.11 11.54 2a77 5.13 6.80 2.56 1.40 2.56 8.20 11.54 541 2.17 7.69 2.77 1.29 100.00 100.00 September October November % 30.00 3.20 4 80 4.80 1.60 14,28 1.60 3.20 12.70 11.11 11.11 1.60 100.00 December January February % % % % % 5.56 23.53 75.92 59.94 58.90 48,58 79.34 5.56 25.00 25.72 1.09 17.56 3.60 11.95 1.80 5.71 1.09 1.85 5-30 5.56 5.88 3.70 3.60 11.42 435 1.85 1.09 1.09 1.80 8.57 100.00 100.00 100.00 100.00 100.00 | | --- Page 12 --- Table 7 (Continued) a March % L platostomus L. productus L. osseus . cepedianum I. bubalus » carpio e congestum Cy. carpio I. punctatus A. natalis » Olivaris . chrysops M. punctulatus 243 M. salmoides 2.13 » coronarius L. microlophus 243 L. macrochirus 12.76 L. auritus P, annularis 43 P. nigromaculatus 43 A. grunniens 100.00 April May ig 100.00 100.00 % 100.00 September i 2.79 17.13 40 1.99 12.55 4.78 6.37 100.00 LOO .00 October Total b 100.00 100.00 --- Page 13 --- Table 8. Species Distribution in Net Catch b Weight in Possum Kingdon, June I, 1954.-October 31, Month Wt. Lb. Species L. platostomus L. productus L. osseus ~D. cepedianum I. bubalus C. carpio M. congestum Cy. carpio I punctatus A. natalis P. olivaris M. chrysops M. punctulatus M. salmoides C. coronarius L. microlophus L. macrochirus L s « auritus « annularis A. unniens Total June July August Wt. Wt. Wt. 22.36 8.19 14,2h 12.57 61.25 22.79 8.70 30.53 7.68 1.25 456 15.11 7.04 11.93 1.32 2.10 ot3 6.85 1.45 6.10 e710 2.65 1.41 -76 1.38 1.87 263 83 78.28 113.84 64.88 September Wt. 018 7-12 +37 1.70. 1.56 3.06 12 38.23 October Wt. 10.63 16.00 TS 1.75 3.34 Te3l 013 46.91 November Wt. 23.50 2.12 5.62 Le12 32.36 December Wt. 11.80 49.00 1.91 4.06 2.02 2.07 029 71.15 January Wt ° 14,12 38.25 3.4 707 1.02 63.90 1933: February Wt. j 53239 4 Qh « 15.56 1.56 1c») 0.11 0.08 83.19 --- Page 14 --- Table 9. Species Distribution in Net Catch By Percentage of Weight in Possum Kingdom Lake-June 1, 1954-October 31, 1955. Month June July August September October November December January February | Percentage t i ts ‘ t t tb tb t | Species L. platostomus ioe productus L. osseus 28.57 7-10 21.80 22.66 72.62 D. cepedianum 16.06 53.81 34.90 22,22 34.11 6.55 16.58 22.10 64.18 I. bubalus 11.11 26.81 11.79 13.01 16.52 68.87 59.86 5.94 | C. carpio 1.60 17-37 2.68 18.70 M. congestum Cy. carpio 5.83 12.01 5.71 5.38 1.88 I. punctatus 19.30 6.30 18.26 15.60 3.73 2.84 P. olivaris M. chrysops 1.69 1.84 1.15 13 7.12 3.46 M. punctulatus M. salmoides 8.75 1.27 9.34 19.00 15.58 2.91 11.06 9 07 C. coronarius 226 L. microlophus .89 258 0.13 L. macrochirus 3.38 1.23 1.16 5.00 -28 0.10 L. auritus 4.10 P. annularis 1.76 1.64 -96 8.00 41 1.60 P. nigromaculatus 1.06 - 10 A. grunniens 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 --- Page 15 --- Table 9 (continued) a nn Month March April May June July August September October Total Percentage % % % % oi % % % % Species L. platostomus 1.61 223 L._productus Pct 1.18 5.14 29h L. osseus 13.31 17-46 43.46 15.95 4.97 15.15 D. cepedianum 59.11 37.79 18.76 38.57 11.39 29.41 16.89 30.83 30.91 I. bubalus 244 13.13 8.05 8.16 68.22 28.86 14.23 20.77 C. carpio yyy 3.85 5.34 8.50 29.09 18.62 18.39 ToTL M. congestum “5 ae “é a on Cy. carpio 454 5. 11.87 2. 22 220 I. punctatus 4.83 5.77 7-10 16.55 8.71 8.18 540 9.88 7.19 A. natalis P. olivaris 6.01 215 M. chrysops 1.68 2.40 6.90 1.75 . 57 4.05 2,20 M. punctulatus 296 210 M. salmoides 2.64 UE.57 oT 1.97 1.98 4.51 12.51 8.60 6.82 C. coronarius o1l3 205 | L. microlophus 216 229 270 234 » Ch 229 L. macrochirus 4.72 48 2.02 4.30 7.33 6,84 3.16 296 24h | L. auritus 2.19 220 Total 100.00 100.00 99.99 100.00 100.00 100.00 LOO. 00 99.99 100.00 --- Page 16 --- Table 10. Number of Each Species Caught Per Month Per 100 Feet of Gill Net (set overnight) in Possum Kingdom Lake, June 1, 1954-October 31, 1955. “ee No. 100' Nets ss G 9-25 6 8.50 ee ae © Se X-> eS MX Species June July August September October November December January February L. platostomus TI. productus Tv osseus 8 a) 3 3 of D. cepedianum 45 4.6 8,2 ee 4.6 1.6 i) 5.7 6.5 Tc bubalus «7 1.0 °3 of 3 1.9 3.0 ol C. carpio 22 05 33 1.0 MM. congestum Cy. carpio 25 A) ol oT ol T. punctatus Le? ott 28 23 ok ol AY natalis Po Olivaris WM. chrysops ot 8 2 23 22 MM. punctulatus 03 | M. salmoides 8 22 1.0 1.0 22 1.3 a4 | :; CC) coronarius a. \ | LD. microlophus wy 12 | | Do macrochirus 1.7 1.0 oT 9 ol ol | T. auritus o3 28 Py annularis oy .6 3 8 ol 7 | P. nigromaculatus ol. 22 °3 { A. grunniens Total --- Page 17 --- Table 10. (continued) No. 100' Nets 11.25 8.75 9 6.25 8.50 el Gs ee Species — Marech April May dune July August September October Av. for Period L. platostomus ok OL L. productus ott 28 ol 3 009 L. ossius a5 3 2.8 22 a oft], D. cepedianum 13 4.8 Tal 54 1.9 2.7 11.3 The 3 6.18 I. bubalus od °5 26 03 2.4 03 2.9 86 C, carpio a) 23 re) 5 25 1.0 3.4 2.3 .68 M. congestum Cy. carpio a 26 o2 ol 06 1.3 228 I. punctatus 5 22 7 5 5 ot 6 mi oth A. natalis P. olivaris ol eOL M._chrysops 23 2 1.3 22 1.0 oT 229 M. punctulatus wel M. salmoides a wl wl. «2 af lel ere 1.3 288 C, coronarius aad. eOL L._ microlophus ol °3 22 22 3 ols L. macrochirus 2.7 23 2.2 1.4 2.3 4 hou 1.0 1.34 L. auritus Ms) oll P. annularis al 22 43 23 1.7 oT 236 P. nigromaculatus el O04 A. grunniens sl 2.3 oly Total 20.9 TS 16.7 Tel 10.2 6.5 35.8 22.2 12.26 --- Page 18 --- Table ll. Frequency of Occurrence and Number of Food Organisms from Stomachs of Fish taken in Gill Nets, from Possum Kingdom Lake, Texas, June 1, 1954-October 31, 1955. _-«s Frequency of Total nc. | Food Items Occurrence Identified | Algae 95 : Cotton Seed Cake 1 L ! Odonate Larvae (Dragonfly) 2 2 | Orthoptera (Grasshoppers) 15 18 Coleoptera (Beetles) 18 25 Hymenoptera (Wasps and Ants) 3 51 Crayfish 2 2 Gizzard Shad (D. cepedianum) 1 1 Spottail Shiner (N. venustus ). 2 2 Channel Catfish (I. punctatus) 8 11 | White Crappie (P. annularis) 2 2 : Logperch (Percina Caprodes) 1 5 | unidentifiable Fish Remains 54 54 Unidentifiable Fish Eggs Total 206 | * Insects identified to Order, higher forms to Species. ' | a . poe es --- Page 19 --- Table 12, 19h5 1946 1947 1948 1949 1950 1951 1952 1953 1954 Eo 15,079,002 Stocking of Fish in Possum Kingdom Lake, Texas, Since 2,190,000 1,934,000 3,665,000 2,023,000 200 , 000 2,200,000 205,950 235,497 970,555 754,000 701,000 White Crappie 35,000 Black Crappie SPECTES PLANTED Channel Cat 51,500 7,000 38,150 40,000 136,650 Warmouth 10,000 10,000 265 , O00 30,000 295 , 000 Sunfish Total 2,190,000 1,934,000 4,026,500 2,030,000 200,000 2,200,000 274,000 235,497 9795555 754,000 741,000 15,555,652 --- Page 20 --- FISH LIST Date Name of Water TTT TTT TTT TTT TTT TTT aT TTT ATT TTT AT TTTTTTT TTT ATT TT MTT EE