HomeFish encyclopediaRay-finned fishesCarpsMinnows or carpsHeadwater chub Headwater chub (Gila nigra) Scientific name: Gila nigra Cope, 1875 The Headwater chub (Gila nigra) is a freshwater fish of the family Cyprinidae. Native range: North America, USA. Species factsScientific nameGila nigraFamilyCyprinidae (Minnows or carps)OrderCypriniformes (Carps)ClassActinopterygii (Ray-finned fishes)EnvironmentFreshwater; benthopelagicClimateTemperateDistributionNorth America: USA.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceMedium, minimum population doubling time 1.4 - 4.4 years (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