HomeFish encyclopediaRay-finned fishesPerch-like fishDrums or croakersAtlantic croaker Atlantic croaker (Micropogonias undulatus) Scientific name: Micropogonias undulatus Linnaeus, 1766 The Atlantic croaker (Micropogonias undulatus) is a brackish-water fish of the family Sciaenidae. BiologyOccurs usually over mud and sandy mud bottoms in coastal waters and in estuaries where the nursery and feeding grounds are located. Feeds mainly on worms, crustaceans and fishes. An excellent foodfish. Sold fresh and frozen; eaten fried, broiled, microwaved and baked.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameMicropogonias undulatusFamilySciaenidae (Drums or croakers)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length55.0Common length30.0Depth range100 m (328 ft)EnvironmentMarine; brackish; demersal; depth range ? - 100 mClimateSubtropicalDistributionWestern Atlantic: Massachusetts, USA (excluding Florida) and northern Gulf of Mexico to northern Mexico. Possibly from southern Brazil to Argentina. Uncertain in southern Gulf of Mexico, Lesser Antilles and southern Caribbean.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: commercial; gamefish: yesResilienceMedium, minimum population doubling time 1.4 - 4.4 years (K=0.2-0.27; tm=1-2; tmax=5) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026