HomeFish encyclopediaRay-finned fishesPerch-like fishDrums or croakersCroaker Croaker (Ophioscion adustus) Scientific name: Ophioscion adustus Agassiz, 1831 The Croaker (Ophioscion adustus) is a marine fish of the family Sciaenidae. Native range: Southwest Atlantic, Argentina and Uruguay. BiologyDorsal spines (total): 11; Dorsal soft rays (total): 28; Anal spines: 2; Anal soft rays: 8Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameOphioscion adustusFamilySciaenidae (Drums or croakers)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)EnvironmentMarine; demersalClimateSubtropicalDistributionSouthwest Atlantic: Argentina and Uruguay.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: of no interestResilienceHigh, 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