HomeFish encyclopediaRay-finned fishesCarpsMinnows or carpsBlackchin shiner Blackchin shiner (Notropis heterodon) Scientific name: Notropis heterodon Cope, 1865 The Blackchin shiner (Notropis heterodon) is a freshwater fish of the family Cyprinidae. BiologyOccurs in clear, vegetated lakes, and in pools and slow runs of creeks and small rivers.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameNotropis heterodonFamilyCyprinidae (Minnows or carps)OrderCypriniformes (Carps)ClassActinopterygii (Ray-finned fishes)Maximum length7.1Common length5.6EnvironmentFreshwater; benthopelagicClimateTemperateDistributionNorth America: southern Quebec, Canada and from Vermont to Minnesota and Iowa in the USA. Mostly restricted to Great Lakes and upper Mississippi River basins but localized in a few Atlantic drainages (St. Lawrence, Hudson, Susquehanna rivers), upper Ohio River basin and Hudson Bay (Red River in Minnesota, USA).Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceHigh, minimum population doubling time less than 15 months (tmax=3) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026