HomeFish encyclopediaRay-finned fishesCatfishSea catfishesGiant sea catfish Giant sea catfish (Arius gigas) Scientific name: Arius gigas Boulenger, 1911 The Giant sea catfish (Arius gigas) is a freshwater fish of the family Ariidae. Native range: Africa, in Volta and Niger rivers. BiologyBase of supra-occipital process moderately wide.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameArius gigasFamilyAriidae (Sea catfishes)OrderSiluriformes (Catfish)ClassActinopterygii (Ray-finned fishes)Maximum length165EnvironmentFreshwater; brackish; benthopelagicClimateTropicalDistributionAfrica: in Volta and Niger rivers.Conservation status (IUCN)Near Threatened (NT)Threat to humansTraumatogenicUsesFisheries: commercialResilienceVery 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