HomeFish encyclopediaRay-finned fishesCarpsSuckersJasper longnose sucker Jasper longnose sucker (Catostomus catostomus lacustris) Scientific name: Catostomus catostomus lacustris Bajkov, 1927 The Jasper longnose sucker (Catostomus catostomus lacustris) is a freshwater fish of the family Catostomidae. Native range: Temperate. BiologyNorth America: Jasper Park in Canada. Countries | FAO areas | Ecosystems | Occurrences | IntroductionsSource: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameCatostomus catostomus lacustrisFamilyCatostomidae (Suckers)OrderCypriniformes (Carps)ClassActinopterygii (Ray-finned fishes)EnvironmentFreshwater; demersalClimateTemperateDistributionTemperateConservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceLow, minimum population doubling time 4.5 - 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