HomeFish encyclopediaRay-finned fishesCatfishSea catfishesBlack seacatfish Black seacatfish (Galeichthys ater) Scientific name: Galeichthys ater Castelnau, 1861 The Black seacatfish (Galeichthys ater) is a marine fish of the family Ariidae. Native range: Southeast Atlantic, South Africa and Namibia. BiologyCarnivorous on benthic invertebrates, primarily annelids.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameGaleichthys aterFamilyAriidae (Sea catfishes)OrderSiluriformes (Catfish)ClassActinopterygii (Ray-finned fishes)Maximum length45.0EnvironmentMarine; reef-associatedClimateSubtropicalDistributionSoutheast Atlantic: South Africa and Namibia.Conservation status (IUCN)Not EvaluatedThreat to humansTraumatogenicUsesFisheries: minor commercialResilienceMedium, minimum population doubling time 1.4 - 4.4 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