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The Western Blacknose Dace

Western Blacknose Dace is a small stream fish. Mature males can develop a pink band, but coloration should be considered alongside other identification evidence.

Range and Identity

Rhinichthys obtusus is retained as the scientific identity. The checked account includes upper Mississippi and Ohio system waters and Manitoba records. Those localities should remain linked to the original determination rather than being expanded to every blacknose dace record in North America.

Habitat and Behavior

Adults occur in cool streams and take aquatic insects. The reported pink band of mature males provides a seasonal identification detail, not a requirement that every fish of the species display that color. Females and nonbreeding individuals require a broader set of features.

Food and Life History

The upper reference is eight centimeters, but the summary does not specify the length convention. It is therefore not relabeled as total or standard length. An independently supported maximum mass and complete spawning sequence remain unestablished in the checked account.

Field Note

Record the measurement method whenever it is known. An unspecified length can remain a useful published reference without being compared as if it used exactly the same endpoints as a total-length measurement.

All Lakes With Western Blacknose Dace

Browse lakes and reservoirs with documented Western Blacknose Dace records, listed alphabetically. Records do not establish current abundance or public access. Check the evidence and managing authority for the water you choose.

Showing 1–24 of 25 lakes · Page 1 of 2

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