Blackside dace
species of fish
The blackside dace (Chrosomus cumberlandensis) is a species of ray-finned fish in the family Leuciscidae. It is endemic to the Cumberland River drainage in Kentucky and Tennessee as well as the Powell River drainage in Virginia in the United States. It is a federally listed threatened species.
Description
This fish is 50 to 65 millimetres (2.0 to 2.6 in) in length. It is olive green in color with black speckling and a black stripe. During the breeding season in April through July the stripe becomes a deeper black, there are red areas on the upper parts, and the fins become yellow.
Ecology
This fish is found in 105 streams in Kentucky and Tennessee, but many of these populations are very small, with under 10 individuals. The species has been found in western Virginia, but these populations may have been introduced by people or represent undescribed species.
The fish lives in cool, clear streams with rocky substrates and overhanging vegetation. It is schooling and lives under banks and rock formations.
“Blackside dace” enters the record as species of fish. Crown Archives preserves that source wording while asking what Blackside, dace and species can confirm, complicate or overturn.
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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 Sep 28, 2025. The linked authority identifier is Q2236034. None of the 0 selected statements returned an explicit reference.
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This entry incorporates text from “Blackside dace” 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.