HomeFish encyclopediaRay-finned fishesCarpsMinnows or carpsRiver chub River chub (Nocomis micropogon) Scientific name: Nocomis micropogon Cope, 1865 The River chub (Nocomis micropogon) is a freshwater fish of the family Cyprinidae. BiologyAdults inhabit rocky runs and flowing pools of small to medium rivers. Oviparous.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameNocomis micropogonFamilyCyprinidae (Minnows or carps)OrderCypriniformes (Carps)ClassActinopterygii (Ray-finned fishes)Maximum length33.0Common length13.5EnvironmentFreshwater; demersalClimateTemperateDistributionNorth America: Susquehanna River, New York to James River, Virginia, USA; Great Lakes basin in New York to Michigan, USA; Ohio River basin in New York to Illinois and south to Georgia and Alabama, USA; Santee River in North Carolina, Savannah River, South Carolina and Georgia; Coosa River, Georgia.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceMedium, minimum population doubling time 1.4 - 4.4 years (tm=3; tmax=5;) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026