TPWD 1964 F-2-R-11 #927: Fisheries Investigations and Surveys of the Waters of Region II-B: Job No. B-22, Fisheries Reconnaissance

--- Page 1 --- Marion Toole D-J Coordinator JOB COMPLETION REPORT As required by FEDERAL AID IN FISHERIES RESTORATION ACT TEXAS ~~ Federal Aid Project No. F-2-R-11 Fisheries Investigations and Surveys of the Waters of Region II-B Job No. B-22: Fisheries Reconnaissance Project Leader: R. L. White J. Weldon Watson Executive Director Texas Parks and Wildlife Department Austin, Texas Eugene A. Walker. FILE Assistant Director of Wildlife «. May 19, 1964 --- Page 2 --- ABSTRACT / Fishcollections were taken from Lakes Austin, Belton, Buchanan, Granite Shoals, Marble Falls, Travis, Town, Brady and the Blanco, Colorado, Frio, Guadalupe, Little, Llano, Medina, Pedernales, San Gabriel and San Marcos Rivers. In addition to the fish collections, gross ecological observations were made on all stream systems and lake basins in an effort to determine changes which could require modifications in present fishing regulations for the areas. No major changes in habits or fish populations were noted during the study and recommendations for fishing regulations, based on these findings remain the same. ry --- Page 3 --- JOB COMPLETION REPORT State of Texas Project No. _F-2-R-11 Names Fisheries Investigations and Surveys of the Waters of Region II-B. Job No. B-22 Title: Fisheries Reconnaissance Period Covered: February 1, 1963 - January 31, 1964 Objectives: _ .. To determine gross changes in fishing conditions and factors influencing fish populations. 1. To determine major changes in the balance between desirable and undesirable fish species and gross changes in abundance and condition of individual fish species. ; 2. To determine when indicated, major changes in ecological conditions includ- ing water quality, turbidity, and fish cover. 3. To determine when indicated, possible sources of pollution. 4. To determine trends in fishing pressure and harvest composition. 5. To insure the adequacy of existing fish harvest regulations. Procedure: Fish populations of selected waters were sampled principally by the use of small mesh experimental” gill mets. These nets consist of five 25-foot sections ranging between one and three inch square mesh. Mesh size increases by one-half inch per section. Random net sets were used in all cases. Seine samples were made with a 26-foot bag seine and a 32-foot straight seine. The lakes to be sampled were chosen by the assistant project leader and the choice was dependant on current weather conditions, request for surveys, and known ‘gross changes in habitat. Net sets were made at stations established in the basic survey of each particular lake: if nets were set at random in the basic survey of the concerned lake, random set& were made. Seine samples were made as time and weather permitted. Water samples were taken and analyzed for Qo, CO,, total hardness, chlorides and pH. Samples, taken from each lake surveyed, were taken from a vertical series, bottom to surface in 10-foot increments. The data collected in the field were checked monthly to determine any major trends in populatior ratio or relative abundance of species as well as general condition. Spot checks of creels and talks with camp operators aided in determin- ing the fishing pressure and angler's success. --- Page 4 --- -2- Table 1 is a checklist of the species mentioned in this report. FINDINGS: The results of the water quality studies are not given in this report because there were no unusual readings detected during the project segment. These studies have been recorded and are on file at project headquarters on the State Fish Hatchery, San Marcos, Texas for future comparison. | ; Menidia beryllina, tidewater silversides minnow, were collected on Lakes Buchanan, Inks, Marble Falls, Granite Shoals, and Belton during the project segment. This species was unrecorded for these Lakes and‘the particular area. It was re- corded in a publication to The Texas Journal of Science. Lake Austin Ten experimental gill nets were set in Lake Austin, Travis County, on January 6-8, 1964. Table 2 contains the results of these netting collections. No unusual population changes or trends were noted in this Limited sampling. Lake Belton . Netting trips were made to Lake Belton, Bell County, on May 21-23, August 26-28, and December 17-19, 1963 where a total of 34 éxperimental gill nets were set. Table 3 contains the results of the netting operations. Table 3a contains the results of seine sampling on Lake Belton. Menidia beryllina, tidewater silversides, were noted for the first time in Lake Belton. The Species seems to be present in large numbers. A very rapid population build-up has been noted in other reservoirs in Central Texas. White bass and channel catfish seem to comprise the majority of the angler's catch on Lake Belton. , Lake Buchanan, A total of 42 experimental gill nets were set in Lake Buchanan, Burnet and Llano Counties on May 16-18, August 13-15, September 11-13, and November 26-28, 1963. Table 4 gives the results of the netting. Seine samples made in conjunction with the netting are given in Table 4a. Menidia beryllina comprised the majority of the seine collections. The results of these netting collections offer no great variation from data collected during the previous segment. Fishing pressure on Lake Buchanan is still below normal, although trotline fishermen continue to harvest a number of catfish. Lake Granite Shoals Trips were made to Lake Granite Shoals, Llano and Burnet Counties on March 18-20, July 15-17, September 18-20, October 28-30, November 11-13, and December 10-11, 1963. A total of 54 experimental gill nets were set, and the results of these netting ; collections are given in Table 5. Results of seining collections made in conjunction with netting operations are given in Table 5a. Tidewater silverside were collected --- Page 5 --- = on Lake Granite Shoals, but not in great numbers. The number of smallmouth buffalo harvested in netting collections has decreased considerably. This reduction could be the effect of the commercial fishermen on the lake; at the same time, the carpsucker population seems to be increasing. A Fishermen reports indicate that there has not been a decrease in angling suc- cess in the past segment. White bass, black bass, and catfish have all been harvested - successfully by fishermen on Lake Granite Shoals. Lake Marble Falls aSne marbie falls Lake Marble Falls, Burnet County was netted on March 11-13, July 15-17, October 22-24, 1963, and January. 27-29, 1964. A total of 41 €xperimental gill nets were set in the lake. The results of these netting collections are given in Table 6. Table 6a contains the results of seine Sampling of the lake. ty About the only fishing success on Lake Matbke Falls is attributed to trotline fishermen. White bass fishing is good Seasonally in the upper portions of the lake. ‘ Lake Travis Netting trips were made to Lake Travis, Burnet and Travis Counties, on August 20-22, 1963, and January 16-18, 1964, where a total of 26 nets were set. Netting results are given in Table 7, and the results of seine samples, done in conjunction with netting, are given in Table 7a. The rough fish population has dropped in both per cent of weight and per cent of number as compared with the previous seg- ment's netting results. Because of the limited sampling, however, no definite con- clusions can be drawn as to the decrease. Fishing pressure on Lake Travis was off considerably, presumably due to the low water level of the lake throughout the project segment. Boat launching sites were difficult to find because of the low water level. The majority of fishing was done from the bank and commercial docks. Limited fishing success was noted on Lake Travis, except for some trotline, and white bass catches, Town Lake Twelve experimental gill nets were set in Town Lake, Travis County, on January 9-11, 1964. Results of this netting are given in Table 8. The Sampling was too limited to draw any definite conclusions. Turbidimeter readings were taken on the lake above and below dredging operations. These readings will be used for compari- son in future work, Brady City Lake The fish population in Brady Creek in the basin of the newly completed Brady Lake was eradicated during the past Segment. Details of the job may be found in Project Report F-14-D-7, Job No. 16a41. The lake was stocked with approximately 77,000 black bass, 3,000 flathead catfish, and 10,000 channel catfish. . --- Page 6 --- -4- Approximately four months after stocking largemouth bass were collected by pro- ject personnel, The bass averaged eight inches in length, with some Specimens ten inches in length. The average weight of the bass collected was about one-half pound, Future reconnaissance work will be carried out on Brady Creek to note the progress of the fish population. RIVERS The rivers which were netted by project personnel are given below. Seining collections were made on most of the rivers, and the data Were recorded. The seining data is on file at the project headquarters on the State Fish Hatchery, San Marcos, Texas. This data will be available for comparison in the future. Blanco River Three experimental gill nets were set in the Blanco River, Blanco County, at the Blanco State Park. Results of the netting are given in Table 9. A die-off of largemouth bass and sunfish, due presumably to a hailstorm, occurred in the park area in the early summer. Black bass from the United States Fish Cul- tural Station in San Marcos, were placed in the river following the die-off. Colorado River Three experimental gill nets were set in the Colorado River, Mills County, on April 23, 1963. Table 10 illustrates the results of these netting operations, The high population of rough fish in the river has rendered the angler's suc- cess negligible. A few catfish are harvested by tratline fishermen, but this method is not overly successful. Frio River Three experimental gill nets were set in the Frio River, Real County, on June 27, 1963. Table 11 shows the results of this netting. Fishing for black bass and sunfish is fair on the river, and fishermen harvest a mumber of catfish both still fishing and trotlining. Smallmouth bass were stocked in the Frio River in 1961, but no survival has been demonstrated. Guadalupe River Ten experimental gill nets were set in the Guadalupe River, Kerr, Kendall, and Comal Counties, during the past segment. Table 12 shows the results of these netting collections, Despite the absence of black bass on the netting table, there is heavy fishing pressure, and a good harvest of this species along the river. Sunfish and catfish are caught by fishermen the year round on the Guadalupe River. --- Page 7 --- Lin Little River Four experimental gill nets were set in the Little River, Milam County on May 23, 1963. The river was on a rise when the nets were set, and only 15 longnose gar and one shertnose gar were collected. Future work on the river is anticipated. Llano River | ee Eleven experimental gill nets were set in the Llano River in Kimble, Mason, and Llano Counties on April 23, April 24, and May 30, 1963, respectively. The results of these netting collections are given in Table 13. The majority of the fish harvested in the river is comprised of catfish and sun- fish,swith some black bass caught in the larger pools. Reconnaissance work will be carried on in the future to note any changes or trends in the fish population of the Llano River. Medina River Twelve experinerital gill nets were set in the Medina River, Bandera County, on June 17-18, and November 19-21, 1963. Table 14 illustrates the results of these net- ting collections. Although there had been some discussion among the citizens of Bandera County to eradicate the present fish poptlation, and restock with desirable fish, no such action has been initiated. Future reconnaissance work on the Medina River will be carried out to determine any changes in the fish population. Pedernales River Six experimental gill nets were set in the Pedernales River, Gillespie and Blanco Counties on April 25-26 and June 6-7, 1963. Table 15 illustrates the results of these netting collections. Angling for catfish and carpsuckers comprises the majority of the fishing pressure on this river. San Gabriel River Eight experimental gill nets were set in the San Gabriel River, Williamson County, on June 27-29, 1963. Table 16 gives the netting results of these netting operations. Most of the fishing pressure in the county centers around. the carpsuckers, but a limited amount of trotlining is also done on the river. San Marcos River Three experimental gill nets were set in the San Marcos River, Hays County, on June 6-7, 1963. Table 17 shows the netting results. Tourists, college students, and local citizens fish the river quite heavily, and a large number of fish are harvested annually. --- Page 8 --- ' Prepared by Richard L. White Project Leader Date: May 19, 1964 . “4, Approved by Ez ‘Coordinator JOHN E. TILTON Regional Supervisor Perec. Look --- Page 9 --- age. / Table 1 >= > Checklist of Fishes _ SCIENTIFIC NAME _ ___ COMMON NAME Lepisosteus oculatus Spotted gar Lepisosteus osseus : Longnose gar Dorosoma cepedianum Gizzard shad Cycleptus elongatus » Blue sucker Ictiobus bubalus Smallmouth buffalo Carpiodes carpio River carpsucker Moxostoma congestum Gray redhorse Cyprinus carpio Carp Notemigonus crysoleucas Golden shiner Notropis venustus Blacktail shiner Notropis lutrensis Red shiner Ictalurus punctatus _ Channel catfish Ictalurus fureatus Blue catfish Ictalurus melas Black bullhead catfish Ictalurus natalis Yellow bullhead catfish Pylodictis olivaris Flathead catfish Fundulus notatus Blackstripe tcpminnow Gambusia affinis Moshuito fish Mugil cephalus Striped mullet . Menidia beryllina Tidewater silverside Roccus chrysops White bass Micropterus treculi Guadalupe bass (Texas Spotted Bass) Micropterus salmoides , Largemouth bass Chaenobryttus gulosus Warmouth Lepomis cyanellus . Green sunfish Lepomis microlophus Redear sunfish Lepomis macrochirus Bluegill Lepomis auritus Redbreast sunfish Lepomis megalotis Longear sunfish Pomoxis annularis White crappie Percina caprodes Logperch Aplodinotus grunniens Freshwater drum Gichlasoma cyanoguttatum Rio Grande perch --- Page 10 --- SPECIES 7 Dorosoma cepedianum Ictiobus bubalus Carpiodes dagpile Ictalurus punctatus Ictalurus fumatus Roccus chrysops Micropterus salmoides Chaenobryttus gulosus Lepomis macrochirus Pomoxis annularis Aplodinotus grunniens Notemigonus crysoleucas TOTALS -8 Table 2 LAKE AUSTIN (Netting data, 1964) NUMBER PER CENT BY NUMBER 77 45.83 3 1.78 . 28 16.67 5 2.98 8 4.76 4 2-38 5 2.98 3 1.78 11 | 6.55 15 8.93 1 0.59 8 4.77 168 100.00 WE IGHT 35.32 17.44 76.85 6.82 19.95 4.25 12.07 0.63 1.14 4.82 1.13 1.76 182.18 PER CENT BY WEIGHT 19.39 9.57 42.18 3.74 10.95 2.33 6.62 0.97 100.00 --- Page 11 --- -9- / Table 3 LAKE BELTON (Netting data, 1963). SPECIES NUMBER PER CENT WEIGHT PER CENT BY NUMBER BY WEIGHT Lepisosteus oculatus “21 Sal? 24.69 4592 Lepisosteus osseus 18 4.43 79.38 15.81 Dorosoma cepedianum 50 12.32 . 27.20 5042 - Ictiobus bubalus 18 4.43 75058 15.05 Carpiodes carpio 20 4.93 37.76 7-52 Moxostoma congestum 1l 2.71 15.43 3.07 Ictalurus punctatus 43 10.59 85.01 16.93 . Cyprinus carpio 5 1.23 16.82 3.35 Pylodictis olivaris 2 0.49 4.94 0.98 Roccus chrysops 71 17.49 99.66 19.84 Micropterus treculi 2 0.49 0.69 0.14 Micropterus salmoides 7 1.72 5-50 1.09 Chaenobryttus gulosus 3 0.74 0.50 0.10 Lepomis cyanellus 7 1.72 1.12 00222 Lepomis microlophus 2 0.50 0.51 0.10 Lepomis macrochirus 76 18.72 9.95 1.98 Lepomis megalotis 16 3.94 :. £eO1, 0.40 Pomoxis annularis 34 8.38 15.46 3.08 TOTALS 406 100.00. 502.21 100.00 : eee oe Table 3a -_ LAKE BELTON SPECIES Dorosoma cepedianum Carpiodes carpio Notemigonus crysoleucas Notropis venustus Notropis lutrensis Menidia beryllina Micropterus treculi Micropterus salmoides Chaenebryttus gulosus Lepomis cyanellus Lepomis macrochirus Lepomis megalotis Percina caprodes TOTALS (Seining collections, 1963). May 21, 1963 HOO 100 1110 FP Oregon 1248 August 28, 1963 11 11 0) 147 0 1202 5 16.. 1 .2 34 30 0 1762 --- Page 12 --- SPECIES Lepisosteus osseus Dorosoma cepedianum Ictiobus bubalus Carpiodes carpio Moxostoma congestum Cyprinus carpio ” Ictalurus punctatus Pylodictis olivaris Roccus chrysops Micropterus treculi Micropterus salmoides Lepomis cyanellus Lepomis microlophus Lepomis macrochirus Lepomis megalotis Pomoxis annularis Aplodinotus grunniens TOTALS SPECIES Dorosoma cepedianum Cyprinus carpio Notropis venustus Notropis lutrensis Menidia beryLllina Micropterus treculi Micropterus salmoides Lepomis cyanellus . Lepomis macrochirus Lepomis megalotis Percina caprodes TOTALS / Table 4 LAKE BUCHANAN (Netting data, 1963) NUMBER PERCENT WEIGHT PER CENT BY NUMBER BY WEIGHT _117 6.21 304.72 13.64 760 40.36 278.28 12.45 23 1.22 | 146.20 6.54 465 24,70 1046.62 46.83 2 210 3.32 «15 69 3.67 115.97 5-19 6 ~32 64.20 2.87 193 10.25 117.76 5.26 27 1.44 20.81 -93 18 295 16.00 «72 2 ell 32 -O1 5 26 . 1.38 -06 23 1.22 3.87 17 27 1.44 2.46 ell 17 -90 8.20 -37 a7 1.44 5.05 -23 1883 100.00 2234.73 ° 100.00 Table 4a. LAKE BUCHANAN (Seining collections, 1963) May 17, 1964 August 14, 1963 September 9,1963 0 1 7 @) 0 1 45 110 146 20 - 0 8 229 412 419 ) 3 4 0 2 8 0 0 Oo 1 2 19 2 53 “15 0 0 2 297 583 | 629 --- Page 13 --- SPECIES Lepisosteus osseus Dorosoma cepedianum Ictiobus Carpiode bubalus s carpio Moxostoma congestum Cyprinus carpio ‘Ictalurus punctatus Pylodictis olivaris Roccus Chrysops Micropte ' Micropte rus treculi rus salmoides Chaenobryttus gulosus. ' Lepomis Lepomis Lepomis Lepomis Lepomis /omoxis cyanellus microlophus macrochirus auritis megalotis annularis Aplodinotus grunniens Notemigonus crysoleucas SPECIES TOTALS Dorosoma cepedianum Notropis Fundulus venustus notatus Gambusia affinis Menidia Micropte Micropte Lepomis Lepomis Lepomis Yercina beryllina rus treculi rus salmoides microlophus macrochirus megalotis caprodes TOTALS September 19, 1963 “ihe Table 5 LAKE GRANITE SHOALS (Netting data, 1963) NUMBER PER CENT+ WEIGHT BY NUMBER 66 4.26 213.65 489 31.54 147.40 218 14.07 998.64 350 22.58 |. 463.02 2 0.13 2,25 15 0.97 64.78 53 3.42 127.80 2 0.13 15.38 91 5.87 102.74 8 0.52 6.61 22 1.42 24.45 9 0.58 2.46 8 0.52 ~ 1.45 13 0.84 1.43 176 11.35 18.60 1 0.06 0.44 7 0.45 0.76 215 0.97 7.79 2 0.13 4.63 3 0.19 0.53 1550 100..00 2204.81 Table 5a LAKE GRANITE SHOALS (Seifing collections; -2b963) 2 0 8 3 0 5 0 1 2 0 1 0 19 1 16 0 8 2 11 1 2 0 69 13 - October 28, 1963 PER CENT BY WEIGHT 9.69 6.68 45.29 21.00 O.11 2.93 5.80 0.70 4.66 0.30 | 1.11 0.11 0.07 0.06 0.84 0,02 0.04 0.35 0.21 0.03 100.00 ~~ November 12, 1963 rt rp rFPRFNrF DON ONWO. wn ww --- Page 14 --- SPECIES | Lepisosteus osseus Dorosoma cepedianum Ictiobus bubalus Carpiodes carpio Ictalurus punctatus -Pylodictis olivaris Roccus chrysops Micropterus treculi~ Micropterus salmoides Chaenobryttus gulosus Lepomis cyanellus Lepomis microlophus Lepomis macrochirus Lepomis megalotis Pomoxis annularis plodinotus grunniens TOTALS SPECIES Dorosoma cepedianum Notropis venustus Notropis lutrensis Gambusia affinis Menidia beryllina Micropterus treculi Micropterus salmoides Lepomis macrochirus Lepomis megalotis Percina caprodes TOTALS -12- Table 6 LAKE MARBLE FALLS (Netting data, 1963) NUMBER PER CENT BY NUMBER 17 2015 369 46.77: 41 5.19 138 17.49 73 9.26 5 0.63 22 2.79 6 0.76 12 1.52 7 0.89 3 0.38 1 0.12 55 6.98 5 0.63 30 3.81 5 0.63 789 100.00 Table 6a LAKE MARBLE FALLS (Seining collections, 1963) October 23, 1963 3 224 42 3 733 7 5 17 44 LL 1089 WEIGHT ‘40.07 212.04 141.65 269.75 57.65 34.82 25.33 4,69 5.32 1.59 0.71 0.13 7.28 0.73 12.89 1.25 815.90 PER CENT BY WEIGHT 4.91 25.99 17.37 33.06 7.07 4.27 3.10 0.57 0.65 0.19 0.09 0.02 0.89 0.09 1.58 0.15 100.00 --- Page 15 --- SPECIES } Lepisosteus osseus Dorosoma cepedianum Ictiobus bubalus Carpiodes carpio Moxostoma congestum Cyprinus carpio Ictalurus punctatus Ictalurus furcatus Pylodictis olivaris Mugil cephalus Roccus chrysops Micropterus treculi Micropterus salmoides Lepomis macrochirus Lepomis megalotis Aplodinotus grunniens ‘iichlasoma cyanoguttatum TOTALS SPECIES Dorosoma cepedianum Notropis venustus Notropis Lutrensis Menidia beryllina Micropterus treculi Micropterus salmoides Lepomis cyanellus Lepomis macrochirus Lepomis megalotis Percina captodes Cichlasoma cyanoguttatum TOTALS a. ' Table 7 LAKE TRAVIS Travis and Burnet Counties (Netting data, 1963) NUMBER PER CENT WEIGHT BY NUMBER 15 4.56 33.53 106 32.22 ; 59.23 25 7.60. ° 91.91 69 20.97 167.13 7 2.13 9.50 2 0.61 7.44 36 10.94 ‘ 17.31 23 6.99 33.06 4 1.23 10.12 1 0.30 6.81 19 5.77 22.48 11 3.34 % 4.75 1 0.30 0.25 2 0.61 0.25 2 0.61 0.37 1 0.30 0.44 5 1.52 0.88 329 100.00 465.46 Table 7a LAKE TRAVIS (Seining collections, 1963) August 19 and 20, 1963 23 285 1 152 FNAOAANNH 486 PER CENT BY WEIGHT 7.20 ~- 12.72 19.75 35.92 2.04 1.60 3.72 7.10 2.17 1.46 4.84 1.02: 0.05 0.05 0.08 0.09 0.19 100.00 --- Page 16 --- SPECIES Lepisosteus oculatus " Lepisosteus osseus Dorosoma cepedianum Cycleptus elongatus Carpiodes carpio Moxostoma congestum Ictalurus punctatus Mugil cephalus Roccus chrysops Micropterus treculi Micropterus salmoides Chaenobryttus gulosus Lepomis microlophus Lepomis macrochirus Lepomis megalotis Pomoxis annularis Cichlasoma cyanoguttatum Notemigonus crysoleucas TOTALS SPECIES Notemigonus crysoleucas Ictaiurus punctatus Ictalurus melas Pylodictis olivaris Lepomis cyanellus Lepomis macrochirus Lepomis megalotis TOTALS -14- Table 8 TOWN LAKE Travis County (Netting data, 1963) “NUMBER PER CENT WEIGHT BY, NUMBER 1 0.47, 1.00 3 1.41 6.26 60 28.17 68.08 Lt 0.47 3.75 41 19.25 91.18 19 8.92 40.90 19 8.92 30.91 2 0.94 1.81 _ 2 0.94 2.88 te sO 0.94 . 3.87 10 ~ 4.69 ~ 18.52 1 0.47 0.13 2 0.94 0.38 32 15.02 3.64 1 0.47 0.13 14 6.57 7.63 1 0.47 0.50 v 0.94 0.62 213 100.00 282.19 Tab lie: 9% BLANCO RIVER, STATE PARK Blanco County (Netting data, 1963) NUMBER PER CENT WEIGHT BY: NUMBER 4 13.33 0.94 5 16.66 3.37 5 16.66 2.56 1 3.33 2.75 1 3433 0.37 13 43.33 1.25 1 3.33 0.13 30 100.00 11.37 PER CENT BY WEIGHT 0.35 2.22 24.13 1.33 32.31 14.49 10.95 0.64 1.02 1.37 6.57 0.05 0.13 1.29 0.05 2.70 0.18 0.22 100.00 PER CENT BY WEIGHT 8.24 29.67 22.52 24.17 3.29 10:98 1.09 100.00 --- Page 17 --- SPECIES | Lepisosteus osseus Dorosoma cepedianum Ictiobus bubalus Carpiodes carpio Cyrpinus carpio Ictalurus punctatus ‘Pylodictis olivaris Aplodinotus grunniens TOTALS SPECIES Moxostoma congestum _ Ictalurus melas Ictalurus natalis Micropterus salmoides Chaenobryttus gulosus Lepomis microlophus Lepomis macrochirus Lepomis auritiis Lepomis megalotis TOTALS (Frio Rive -15- Tabla 10 COLORADO RIVER Mills County (Netting data, 1963) NUMBER PER CENT BY NUMBER 31 28.70 15 13.89, 5 4.63 50 46.30 1.85 0.92 0.93 2.78 QW ee hd 108 100.00 Table 11 KENT CREEK Real County NUMBER PER CENT BY NUMBER — 1.49 ‘4.47 49.25 7.46 2.99 7-46 19.40 2.99 1.49 Fes uo PNWUND YW We M ON in 97.00 r, netting data, 1963) WE IGHT - 50.13 15.07 17.94 97.53 6.44 1.88 1.06 2.01 192.06 WEIGHT 2.00 6.56 21.13 6.13 0.50 1.81 3.50 0.13 0.13 PER CENT BY WEIGHT 26.10 7.85 9.34 50.78 3.35 0.97 0.56 1.05 100.00 PER CENT BY WEIGHT 4.74 15.57 50.14 14.55 1.18 4.29 8.31 0.31 0.31 99-40 --- Page 18 --- SPECIES Lepisosteus osseus Dorsoma cepedianum Carpiodes carpio Moxostoma congestum Ictalurus punctatus Ictalurus melas Pylodictis olivaris Chaenobryttus gulosus Lepomis macrochirus Lepomis megalotis TOTALS SPECIES Lepisosteus osseus Dorosoma cepedianum Ictiobus bubalus Carpiodes carpio Moxostoma congestum Cyprinus carpio Ictalurus punctatus Pylodictis olivaris Micropterus salmoides Chaenobryttus gulosus Lepomis cyanellus Lepomis macrochirus Pomoxis annularis sichlasoma cyanoguttatum TOTALS -16-_ Table 12 GUADALUPE RIVER Kerrville (Netting data, 1963) NUMBER PER CENT : BY NUMBER 46 17.42' | 80 30.31 24 9.09 59 22.35 21 7.95 11 4.17 6 2.28 4 1.51 4 1.51 264% 100.00 Table 13 LLANO RIVER NUMBER PER CENT BY NUMBER 33 8.35 253 64.05 24 3.55 AL 10.38 1.01 1.77 5.58. 0.25 0.51 0.51 1.52 2.02 0.25 0.25 PRrPOADNNFNA 40:5 100.00 WE IGHT 98.99 107.85 57.25 (103.61 36.07 2.00 29.13 1.69 0.94 2.26 439.79 Kimble, Mason, and Llano Counties (Netting data, 1963) WE IGHT 54.67 272.93 56.08 53.77 6.50 39.94 32.61 1.06 1.24 0.53 1.02 1.02 0.15 0.39 521.91 PER CENT BY WEIGHT 22.50 24.53 13.03 23.57 8.20 0.45 6.62 0.38 0421 0.51 100.00 PER CENT BY WEIGHT 10.47 52.29 10.74 10.30 1.25 7.65 6.25 0.20 0.25 0.10 0.20 0.2¢ 0.03 0.07 100.00 --- Page 19 --- SPECIES Lepisosteus osseus Dorosoma cepedianum Ictiobus. bubalus Capriodes carpio Moxostoma congestum Cyprinus carpio oat Ictalurus punctatus _ Pylodictis olivaris Micropterus treculi Micropterus salmoides Chaenobryttus gulosus Lepomis macrochirus TOTALS - SPECIES Carpiodes carpio Moxostoma congestum Cyprinus carpio Ictalurus punctatus Pylodictis olivaris Micropterus salmoides Chaenobryttus gulosus Lepomis macrochirus Pomoxis annularis ‘TOTALS “ig Table 14 MEDINA RIVER Bandera County (Netting data, 1963) NUMBER PER CENT WEIGHT ; - BY NUMBER 45 17.11 76.54 112 42.58 116.90 18 . 6.85 5 87.07 2 9.76 _ . 5.07 25... 9.51 29.12 19: Fi 22 te 36.45 22 - 8.3hsa" 23.21, 5 1.90 = 18.44¢, 1 0.38 0.38 ° 2_ 0.76 1.19 2 . 176. 0.38. 10. 3.80 a 2.12 2832" 109.00 396.87 Table 15 PEDERNALES RIVER Gillespie County (Netting data, 1963) - NUMBER PER CENT WEIGHT BY NUMBER 118 67.82 182.25 7 4,02 8.31 10 5.75 34.18 1 6432 _ 8.06 1 0.57 3.00 14 8.05 4.79 2. 1.15 0.51 7 4.02 1.92 4 2.30 1.28 174 100.00 244.30 PER CENT BY WEIGHT 19.29 29.46 21.94 1427 7.34 9.19 5.85 4.65 0.10 0.30 0.10 0.53 100.02 PER CENT BY WEIGHT 74.60 3.40 43.99 - 3.30 La23 1.9% 0.21 0.79 0-52 100.00 --- Page 20 --- ae SPECIES Dorosoma cepedianum Carpiodes carpio Moxostoma congestum Cyprinus carpio Ictalurus punctatus Ictalurus natalis Pylodictis olivaris Micropterus treculi Micropterus salmoides Lepomis cyanellus ‘ Lepomis macrochirus Lepomis megalotis Aplodinotus grunniens TOTALS SPECIES Dorosoma cepedianum Moxostoma congestum Ictalurus punctatus Pylodictis olivaris Micropterus salmoides Chaenobryttus gulosus Lepomis macrochirus Lepmois auritus Lepomis megalotis Pomoxis annularis TOTALS -18- Table 16 SAN GABRIEL RIVER Williamson County (Netting data, 1963) NUMBER PER CENT BY NUMBER tH co 18.56 21.64 9.28 1.03 8.25 3.09 1.03 6.19 2.06 18.56 6.29 3.09 1.03 a to e MPWHAWANM AH WOOF Ww ma?) ~~ 100.00 Table 17 SAN MARCOS RIVER Hays County (Netting data, 1963) NUMBER PER CENT BY NUMBER 17.65 38.24 8.82 5.89 5.89 2.94 2.94 5-89 5-89 5.89 he NNNFP REND WW OO 100.04 Ww £ WEIGHT 13.498 14.63 7-81 8.75 8.31 0.81 6.88 2.00 1.62 2-31 0.76 0.25 3.00 70.62 WEIGHT 1.31 19.94 3.88 2.13 1.00 0.25 0.13 0.31 0.25 0.75 29.95 PER CENT BY WEIGHT 19.10 20.72 11.06 12.39 11.77 1.15 9.74 2.83 2.29 3.27 1.08 0.35 4.25 100.00 PER CENT BY WEIGHT 4.37 66.58 12.95 Tell 3.34 0.84 0.43 1.04 0.83 2.51 100.00