Black Redhorse lives in larger-sized streams with clean gravel and is native to three of 18 watersheds in western third of the state. In recent stream surveys of the Allegheny watershed it was caught about seven times more frequently than in surveys from the 1930s. It also is more frequently encountered in the Erie watershed. In contrast it is no longer found in the Genesee watershed. Black Redhorse has been classified as Special Concern but recent trends suggest that may no longer be necessary.