Black redhorse
species of fish
The black redhorse (Moxostoma duquesnei, also duquesnii, duquesni) is a species of freshwater fish endemic to Ontario and the eastern half of the United States, where it lives in streams and small to medium rivers.
A bottom-feeder, it feeds on microcrustaceans, aquatic insects, detritus, and algae. The black redhorse spawns in the spring.
This species has been identified as Threatened by the Committee on the Status of Endangered Wildlife in Canada (COSEWIC). It is currently being considered for listing under the federal Species at Risk Act (SARA).
Description
The black redhorse is a species of the sucker family, Catostomidae. It is laterally compressed and has a shallow body shape with little arching to the back. Nearly half of the head is a long, rounded snout. The mouth is on the underside of the snout and has a thick lower lip. The body is silvery-blue with a gray or brownish dorsal surface and silver or white belly.
The public source identifies “Black redhorse” as species of fish. This brief keeps that definition visible, then builds a research path around Black, redhorse and species.
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The date and method of observation matter as much as the stated conclusion, especially where classification or consensus has changed. The source revision retrieved here is dated Mar 1, 2026. The linked authority identifier is Q3760795. None of the 0 selected statements returned an explicit reference.
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This entry incorporates text from “Black redhorse” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.