BLACK REDHORSE, MOXOSTOMA-DUQUESNEI REDISCOVERED IN WISCONSIN

Until recently, the Black Redhorse (Moxostoma duquesnei) was thought t o be extirpated from the state of Wisconsin with the last documented r ecord from Black Earth Creek in Dane county on 7 August 1928. On 22 Ap ril 1992, one specimen was caught in Lake Wausau, a reservoir on the W isconsin River, in Marathon County. This site is 298 km upstream from the confluence of Blue Mounds Creek (Black Earth Creek is one of its t ributaries) with the Wisconsin River. In July 1992. five additional sp ecimens were collected in the Wisconsin River below the Wausau Hydroel ectric Dam and three more specimens were collected in the Eau Claire R iver near its confluence with the Wisconsin River in Wausau. Wisconsin is in the process of adding this redhorse to its endangered species l ist.