A series of collections similar to that on Crab Creek was carried out along 1-1/2 miles of Beaver Creek on July 22, 1956. Nine pools were sampled (Table 8) of which number nine was the uppermost point where water was found (except for farm ponds). Mainly young of _Lepomis cyanellus_ and _Ictalurus melas_ were found in the uppermost stations, as on Crab Creek. Only adults of _Notropis lutrensis_ and _Notropis umbratilis_ were taken.
In another small intermittent tributary of Grouse Creek two collections (G-14 and G-15) were made. One was from several isolated pools near the source of the creek and the other was 1-1/2 miles upstream from the mouth. The two stations were approximately four miles apart. Table 9 indicates approximate percentages of fish taken in five seine hauls at these stations.
TABLE 9.--FISHES TAKEN IN A TRIBUTARY OF GROUSE CREEK.
================================================= Species | Upstream | Downstream | station | station --------------------------+----------+----------- _Ictalurus melas_ | 45% | _Lepomis humilis_ | 48% | 40% _Notropis lutrensis_ | 5% | 30% _Lepomis cyanellus_ | 2% | 20% _Fundulus notatus_ | | 10% --------------------------+----------+-----------
At two other stations, only _Lepomis cyanellus_ was found. One of these stations consisted of several small spring-fed pools in a dry arroyo tributary to Little Beaver Creek. Around these small "oases" rushes and smartweeds grew and blackbirds were nesting in the rushes. Although green sunfish up to eight inches in length were common in the shallow pools, no other species was found. The second station (C-17) on the East Fork Big Caney River is of special interest. The pool was isolated, had dimensions of about 25×25 feet, and had an average depth of 15 inches. The water was foul; cows had been fed fodder in a sheltered area above the pool during the preceding winter and the entire bottom was covered to a depth of 6 inches to 1 foot with a detritus of decomposing fodder, cattle feces, and leaves. The water became almost inky in consistency when the bottom was stirred and its odor was offensive. A thick gray-green bloom lay on the surface. This bloom was full of bubbles indicating gases rising from the bottom muds. One hundred fifty-three green sunfish, all less than 5 inches in length, were taken in one seine-haul at this station.