HomeFish encyclopediaRay-finned fishesCarpsSuckersOpata sucker Opata sucker (Catostomus wigginsi) Scientific name: Catostomus wigginsi Herre & Brock, 1936 The Opata sucker (Catostomus wigginsi) is a freshwater fish of the family Catostomidae. Native range: North America, Northwest Mexico (Sonora River basin). Species factsScientific nameCatostomus wigginsiFamilyCatostomidae (Suckers)OrderCypriniformes (Carps)ClassActinopterygii (Ray-finned fishes)EnvironmentFreshwater; demersalClimateTropicalDistributionNorth America: Northwest Mexico (Sonora River basin).Conservation status (IUCN)Vulnerable (VU) (B1+2abc, D2)Threat 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