HomeFish encyclopediaRay-finned fishesPerch-like fishPerchesGreenfin darter Greenfin darter (Etheostoma chlorobranchium) Scientific name: Etheostoma chlorobranchium Zorach, 1972 The Greenfin darter (Etheostoma chlorobranchium) is a freshwater fish of the family Percidae. Native range: North America, occurs only in the upper Tennessee River drainage from Watauga River to Hiwassee River systems in North Carolina, Tennessee and Georgia, USA. BiologyInhabits very fast, rocky riffles of creeks and small to medium rivers.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameEtheostoma chlorobranchiumFamilyPercidae (Perches)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length10.0Common length5.5EnvironmentFreshwater; benthopelagicClimateSubtropicalDistributionNorth America: occurs only in the upper Tennessee River drainage from Watauga River to Hiwassee River systems in North Carolina, Tennessee and Georgia, 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