|Scientific Name:||Etheostoma derivativum|
|Species Authority:||Page, Hardman & Near, 2003|
|Red List Category & Criteria:||Least Concern ver 3.1|
|Reviewer(s):||Smith, K. & Darwall, W.R.T.|
|Facilitator/Compiler(s):||Hammerson, G.A. & Ormes, M.|
Somewhat small extent of occurrence, but listed as Least Concern in view of the substantial number of subpopulations, apparently large population size, apparently stable trend, and lack of major threats.
|Range Description:||Range includes the lower Cumberland River drainage, southern Kentucky and north-central Tennessee; Red River system in Todd and Logan counties, Kentucky, to West Fork Stones River, Tennessee (Page et al. 2003, Page and Burr 2011).|
|Range Map:||Click here to open the map viewer and explore range.|
|Population:||Page et al. (2003) mapped 26 collection sites in about 15 different streams.
This darter is locally common (Page et al. 2003); common in Tennessee, rare in Kentucky (Page and Burr 2011).
Trend over the past 10 years or three generations is uncertain but likely relatively stable.
|Current Population Trend:||Stable|
|Habitat and Ecology:||Habitat includes rocky pools of creeks and small to medium rivers (Page and Burr 2011); small bedrock creeks (under flat rocks), gravel bottom pools and gentle riffles of larger streams (small to medium rivers). In larger streams, this darter often is associated with emergent vegetation or occurs under tree roots or undercut banks; it also occurs in slower riffles and gravel pools with no cover. Eggs are laid on the underside of large stones (Page 1983).|
|Movement patterns:||Not a Migrant|
|Major Threat(s):||No major threats are known.|
|Conservation Actions:||Currently, this species is of relatively low conservation concern and does not require significant additional protection or major management, monitoring, or research action.|
|Citation:||NatureServe. 2013. Etheostoma derivativum. The IUCN Red List of Threatened Species 2013: e.T202474A2745170. http://dx.doi.org/10.2305/IUCN.UK.2013-1.RLTS.T202474A2745170.en . Downloaded on 07 October 2015.|
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