HomeFish encyclopediaRay-finned fishesCarpsMinnows or carpsBlue chub Blue chub (Gila coerulea) Scientific name: Gila coerulea Girard, 1856 The Blue chub (Gila coerulea) is a freshwater fish of the family Cyprinidae. Native range: North America, Klamath and Lost River systems in Oregon and California, USA. BiologyInhabits rocky pools of creeks and small to large rivers, and rocky shores of lakes and impoundments.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameGila coeruleaFamilyCyprinidae (Minnows or carps)OrderCypriniformes (Carps)ClassActinopterygii (Ray-finned fishes)Maximum length41.0Common length22.0EnvironmentFreshwater; benthopelagicClimateTemperateDistributionNorth America: Klamath and Lost River systems in Oregon and California, 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