The dusky darter (Percina sciera) is a species of freshwater ray-finned fish, a darter from the subfamily Etheostomatinae, part of the family Percidae, which also contains the perches, ruffes and pikeperches. It is found in, but not confined to, both large and small rivers, and shallow creeks (1-3rd order), in the eastern, southern, and southeastern United States,[3] particularly the Mississippi River drainage system.
Percina are benthic and benthic-associated fishes. Percina sciera belongs to the family Percidae, which along with Etheostomatinae comprise approximately 20-percent of the recognized diversity in North American freshwater fish.[3] Land development may threaten P. sciera habitat.[4]Percina prefer low water velocity in riffle/pool transition areas primarily on top of woody debris in a sandy/boulder substrate.[5]
^NatureServe (2013). "Percina sciera". IUCN Red List of Threatened Species. 2013: e.T202592A18231811. doi:10.2305/IUCN.UK.2013-1.RLTS.T202592A18231811.en. Retrieved 20 November 2021.
^Froese, Rainer; Pauly, Daniel (eds.) (2019). "Percina sciera" in FishBase. December 2019 version.
^ abCarlson, R.L., and P.C. Wainwright. 2010. The ecological morphology of darter fishes (Percidae: Etheostomatinae). Biological Journal of the Linnean Society 100:30-45.
^Skyfield, J.P., and G.D. Grossman. 2008. Microhabitat use, movements and abundance of gilt darters ("Percina evides") in southern Appalachian (USA) streams. Ecology of Freshwater Fish 17:219-230.
^Welsh, S.A., and S.A. Perry. 1998. Habitat partitioning in a community of darters in the Elk River, West Virginia. Environmental Biology of Fishes 51:411-419.
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