The ichthyofauna of Harmon and Wynne creeks sampled within the Center for Biological Field Studies, Walker County, Texas

The fishes of Harmon and Wynne creeks within the Center for Biological Fiel d studies (CBFS) were surveyed from March through May 2000. This survey pro vides a species inventory for future study of ichthyofaunal diversity withi n the CBFS creek system. A total of 11 fish species were identified by sein ing 20 pools. Blacktail shiner (Cyprinella venusta) and the western mosquit ofish (Gambusia affinis) were most common in Harmon and Wynne creeks, respe ctively, with the yellow bullhead (Ameiurus natalis) and the dusky darter ( Percina sciera) being the most rare. Indices of species diversity are discu ssed with general descriptions of microhabitat in each creek. Because Harmo n and Wynne creeks are located within the Trinity River Basin (TRB), the en demic fishes of the TRB are reviewed in comparison with the species sampled in the CBFS.