HomeFish encyclopediaRay-finned fishesCatfishNorth American freshwater catfishesScioto madtom Scioto madtom (Noturus trautmani) Scientific name: Noturus trautmani Taylor, 1969 The Scioto madtom (Noturus trautmani) is a freshwater fish of the family Ictaluridae. Native range: North America, known only from Big Darby Creek (Scioto River system) in southern Ohio, USA. BiologyFound mainly from downstream end of 20 m sand-gravel riffle.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameNoturus trautmaniFamilyIctaluridae (North American freshwater catfishes)OrderSiluriformes (Catfish)ClassActinopterygii (Ray-finned fishes)Maximum length6.1Common length3.2EnvironmentFreshwater; demersalClimateTemperateDistributionNorth America: known only from Big Darby Creek (Scioto River system) in southern Ohio, USA.Conservation status (IUCN)Critically Endangered (CR) (B1+2c)Threat 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