HomeFish encyclopediaRay-finned fishesSalmonsSalmonidsGila trout Gila trout (Oncorhynchus gilae) Scientific name: Oncorhynchus gilae Miller, 1950 The Gila trout (Oncorhynchus gilae) is a freshwater fish of the family Salmonidae. Native range: North America, Gila River system in New Mexico and Arizona, USA. BiologyInhabits clear and cool mountain creeks (above 2000 m elevation). May bite when handled (Bob, pers. comm., 2006).Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameOncorhynchus gilaeFamilySalmonidae (Salmonids)OrderSalmoniformes (Salmons)ClassActinopterygii (Ray-finned fishes)Maximum length32.0Common length13.0EnvironmentFreshwater; demersalClimateTemperateDistributionNorth America: Gila River system in New Mexico and Arizona, USA.Conservation status (IUCN)Endangered (EN) (B2ad+3c)Threat to humansHarmlessUsesFisheries:ResilienceMedium, 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