Status of the River Redhorse, Moxostoma carinatum, in Canada

Abstract

The river redhorse, M. carinatum , is rare in Canada, reproducing populations being known only from the Mississippi River in Ontario and the Richelieu and Yamaska rivers in Quebec. This species reaches its northeastern range limit in Canada and Canadian populations are distirct from those of the U.S.A. Populations are declining, possibly because of removal of adult specimens and habitat deterioration. The river redhorse is not specifically protected in Canada, although general protection is afforded by the fish-habitat sections of the Fisheries Act