TPWD 1956 F-6-R-3 #256: Inventory of the Fish Species in the Nueces, Frio, and Atascosa Rivers

STATE Texas PROJECT NO. F5R3 - Job Bul PERIOD July 1, 1953 - June 30: 1955 Job Completion Report Alvin Flury - Project Leader TITLE Inventory of the Fish Species in the Nueces, Frio, and Atascosa Rivers. OBJECTIVES To determine the species present and their relative numbers in the waters entering Lake Corpus Christi. PROCEDURE Thirty—one seining and four netting collections were made on the three rivers during the first and third segments of the job. From the fifty stations, mostly at road crossings, established for the basic survey (see map 1) only 31 of them.were found to be suitable for making seining or netting collections Table 1 shows a list of the species taken in these collections and Table 2 shows the numbers of each species taken at each station. many of the fish collections were made on the same trips that basic data were gathered for the water analysis and stream survey observations. OBSERVATIONS By referring to the job completion report for F633 1 Job A-l, it will be seen that these three rivers are intermittent, flowing only during and after run-off rains. The Nueces River is normally composed of long, narrow, deep pools occasionally connected by running riffles. The two major tributaries, the Frio and Atascosa Rivers usually have samller, more isolated pools of water. Mbst of the creeks and arroyos draining into the rivers are completely dry except for periods of run-off rains. Several channel dams have been built in the vicinity of Crystal City on the Middle region of the Nueces and they form long narrow lakes which are frequently pumped completely dry for truck farm irrigation. The upper Nueces and Frio Rivers are not in Region B=8 and are not included in this report. A total of 8, 231 specimens was taken representing 32 species. Other species that were present in Lake Corpus Christi and almost certainly present in the Nueces Ri.ver above the lake but not recorded in this job were I.«. Q“. 1' . - ‘ ; carpig, Notropis roseus, Pilodictus olivarius and Anguilla rostrata, Eum mia parva, Caressius auratus and Electric pisonis were taken only rarely in Lake Corpus Christi and may occur in the watershed.. Four species, Moxostoma congestmn,mfltr0pis ignnnflmfid Pimephales promelas and Poecilichthys lepidus were recorded in this”356“5fit’were not found to occur in the lake. The first two of these were found only at Station 1, a clear water pool typical of the upper Nueces River but unique in this Region. P. pLgmelas was collected both at Station 1 and at Stations 22 and 26 while_Pg lepidw was found only at Station 26. Each of these stations contained running water over gravel bars. Only 17 fishermen were seen during the progress of this job: two at Stat- ion 1, three on Commanche Lake, two on Espintosa Lake and ten on Holland Lake. Fishing pressure is not very heavy because the silty nature of the streams and the irregular water supply strongly favors rough fish, catfish, and freshwater drum” Some of the lakes in the vicinity of Crystal City might be worth renovation by complete removal of existing fish populations and restocking but the excessive use of the water for irrigation and the strong floods would probably prevent them from ever producing first class fishing for any appreciable time. _ Sumner Fish collections were made by seines or experimental gill nets at thirty- five stations on the Nueces, Frio, and Atascosa Rivers, above Lake Corpus Christi. Four species were found that were not found in Lake Corpus Christi and eight species that do occur in Lake Corpus Christi were not above it. Both game fish populations and fishing pressure are apparently low in the three rivers because the streams are mostly muddy and the water supply is irregular. Table l. A List of Fish Species Recorded from Lake Corpus Christi. Scientific Name Lepisosteus Spatula Lepisosteus productus Lepisosteus osseus Dorosoma cepedianum Astyanax fasciatus Ictiobus bubalus Moxostoma congestum Notemigonus crysoleucas Opsopoeodus emiliae Notropis venustus Notropis lutrensis Pimephales vigalax Pimephales promelas emerges“ Ictalurusfuroatus Ameiurus melas Ameiurus natalis Schilbeodes mollis Gambusia affinis Mellienisia latipinna Henidia beryllina Micropterus salmoides Chaenobryttus coronarius Lepomis cyanellus Lepomis microlophus Lepomis macrochirus Lepomis megalotis Pomoxis annularis Etheostoma gracile Poecilichthys lepidus Aplodinotus grunniens Cichlasoma cyanoguttata Common Name Alligator gar Spotted gar Longnose gar Gizzard shad Tetra Smallmouth buffalo Gray redhorse Golden Shiner Pugnose minnow Spottail shiner Red Shiner Parrot minnow Fathead minnow Southern channel catfish Blue catfish Black bullhead Yellow bullhead Tadpole madtom Gambusia Sailfin molly Tidewater silversides Largemouth black bass Warmouth Green sunfish Redear sunfish Bluegill Longear sunfish White crappie Western Swamp darter Greenthroat darter Freshwater drum Rio Grande perch F adeo m. genomes ow moooHaoom deems Ho 23“ng moo moHoHom QOHHooeHoom woos Soc anemone e430 one essences. widen. mooOHom men. was. mom. was. mes. was. mes. men. was. mam. men. was. moo. mom. was. man. mdm.mdo. 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