HomeFish encyclopediaRay-finned fishesCarpsSuckersBlack buffalo Black buffalo (Ictiobus niger) Scientific name: Ictiobus niger Rafinesque, 1819 The Black buffalo (Ictiobus niger) is a freshwater fish of the family Catostomidae. BiologyInhabits ponds and backwaters of small to large rivers. Also lives in impoundments and lakes. Oviparous. Feeds on Asiatic clam, algae, diatoms and crustaceans.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameIctiobus nigerFamilyCatostomidae (Suckers)OrderCypriniformes (Carps)ClassActinopterygii (Ray-finned fishes)Maximum length123Common length52.1EnvironmentFreshwater; demersalClimateSubtropicalDistributionNorth America: lower Great Lakes and Mississippi River basins from Michigan and Ohio to South Dakota and south to Louisiana in the USA; on Gulf Slope in Sabine Lake, Brazos River and Rio Grande drainages in Louisiana, Texas and New Mexico in the USA, and Mexico.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: minor commercial; aquaculture: commercial; gamefish: yesResilienceLow, minimum population doubling time 4.5 - 14 years (tmax=24) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026