HomeFish encyclopediaRay-finned fishesCarpsMinnows or carpsUmpqua dace Umpqua dace (Rhinichthys evermanni) Scientific name: Rhinichthys evermanni Snyder, 1908 The Umpqua dace (Rhinichthys evermanni) is a freshwater fish of the family Cyprinidae. Native range: North America, Umpqua River drainage in Oregon, USA. Species factsScientific nameRhinichthys evermanniFamilyCyprinidae (Minnows or carps)OrderCypriniformes (Carps)ClassActinopterygii (Ray-finned fishes)Maximum length11.0EnvironmentFreshwater; demersalClimateTemperateDistributionNorth America: Umpqua River drainage in Oregon, USA.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceHigh, minimum population doubling time less than 15 months (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