Guadalupe bass illustration: image was copied on 12/08/04 from Texas Parks & Wildlife Department's website; www.tpwd.state.tx.us (all rights reserved; used by permission). Neither this website, nor the information presented on this website is endorsed by the State of Texas or Texas Parks & Wildlife Department.
Texas designated the Guadalupe bass (Micropterus treculi) as the official state fish in 1989. The Guadalupe bass is found only in Texas, native to fast moving streams in the central Hill Country (including the headwaters of the San Antonio, Guadalupe, and Colorado Rivers).
A small but powerful fish, the Guadalupe is not a true bass, but a member of the sunfish family (also true for other "black bass" including largemouth bass, smallmouth bass, and spotted bass). The typical adult is around 12 inches long and 1 pound in weight.
The male Guadalupe bass builds a gravel nest in shallow water and spawns there. Once the female lays her eggs (up to 10,000), he chases her away and guards the nest throughout the incubation period.