HomeFish encyclopediaRay-finned fishesCarpsMinnows or carpsRedspot chub Redspot chub (Nocomis asper) Scientific name: Nocomis asper Lachner & Jenkins, 1971 The Redspot chub (Nocomis asper) is a freshwater fish of the family Cyprinidae. BiologyInhabits rocky, usually clear, runs and pools of creeks and small to medium rivers.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameNocomis asperFamilyCyprinidae (Minnows or carps)OrderCypriniformes (Carps)ClassActinopterygii (Ray-finned fishes)Maximum length22.0Common length14.0EnvironmentFreshwater; demersalClimateTemperateDistributionNorth America: Arkansas River drainage in southwestern Missouri, southeastern Kansas, northeastern Oklahoma and northwestern Arkansas, USA; isolated populations in Blue River (Red River drainage) in Oklahoma and the upper Ouachita River drainage in Arkansas, 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