HomeFish encyclopediaRay-finned fishesCarpsMinnows or carpsNazas chub Nazas chub (Gila conspersa) Scientific name: Gila conspersa Garman, 1881 The Nazas chub (Gila conspersa) is a freshwater fish of the family Cyprinidae. Native range: North America, Mexico. Species factsScientific nameGila conspersaFamilyCyprinidae (Minnows or carps)OrderCypriniformes (Carps)ClassActinopterygii (Ray-finned fishes)EnvironmentFreshwater; benthopelagicClimateTropicalDistributionNorth America: Mexico.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