HomeFish encyclopediaRay-finned fishesCarpsMinnows or carpsArroyo chub Arroyo chub (Gila orcuttii) Scientific name: Gila orcuttii Eigenmann & Eigenmann, 1890 The Arroyo chub (Gila orcuttii) is a freshwater fish of the family Cyprinidae. Native range: North America, Malibu Creek, Santa Clara, San Luis Rey and Santa Margarita River drainages in southern California, USA. BiologyInhabits sandy and muddy bottoms in flowing pools and runs of headwaters creeks and small to medium rivers. Often found in intermittent streams.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameGila orcuttiiFamilyCyprinidae (Minnows or carps)OrderCypriniformes (Carps)ClassActinopterygii (Ray-finned fishes)Maximum length40.0EnvironmentFreshwater; benthopelagicClimateTemperateDistributionNorth America: Malibu Creek, Santa Clara, San Luis Rey and Santa Margarita River drainages in southern California, USA.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceMedium, minimum population doubling time 1.4 - 4.4 years (tmax=4) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026