HomeFish encyclopediaRay-finned fishesCarpsSuckersUtah sucker Utah sucker (Catostomus ardens) Scientific name: Catostomus ardens Jordan & Gilbert, 1881 The Utah sucker (Catostomus ardens) is a freshwater fish of the family Catostomidae. BiologyOccurs in lakes, impoundments and streams over silt, sand, gravel or rocks. Often found near vegetation.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameCatostomus ardensFamilyCatostomidae (Suckers)OrderCypriniformes (Carps)ClassActinopterygii (Ray-finned fishes)Maximum length65.0Common length30.0EnvironmentFreshwater; demersalClimateTemperateDistributionNorth America: Snake River system (in Columbia River drainage) above Shoshone Falls and adjacent endorheic drainages in Wyoming, Idaho and Utah in the USA, and south through Lake Bonneville basin in Idaho and Utah.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceVery Low, minimum population doubling time more than 14 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