HomeFish encyclopediaRay-finned fishesPerch-like fishPerchesRock darter Rock darter (Etheostoma rupestre) Scientific name: Etheostoma rupestre Gilbert & Swain, 1887 The Rock darter (Etheostoma rupestre) is a freshwater fish of the family Percidae. Native range: North America, found only in Mobile Bay drainage of Georgia, Alabama, Mississippi and extreme southeastern Tennessee in the USA. BiologyInhabits fast rocky riffles of creeks and small to medium rivers.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameEtheostoma rupestreFamilyPercidae (Perches)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length8.3Common length6.0EnvironmentFreshwater; benthopelagicClimateTemperateDistributionNorth America: found only in Mobile Bay drainage of Georgia, Alabama, Mississippi and extreme southeastern Tennessee in the USA.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026