HomeFish encyclopediaRay-finned fishesPerch-like fishDrums or croakersSpotted weakfish Spotted weakfish (Cynoscion nebulosus) Scientific name: Cynoscion nebulosus Cuvier, 1830 The Spotted weakfish (Cynoscion nebulosus) is a brackish-water fish of the family Sciaenidae. Native range: Western Atlantic, New York to southern Florida in USA and the entire Gulf of Mexico. BiologyInhabits river estuaries and shallow coastal marine waters over sand bottoms, often associated with seagrass beds. Also occurs in salt marshes and tidal pools of high salinity. Feeds mainly on crustaceans and fishes. An important food and sport fish throughout its range. Utilized fresh for steaming, broiling and baking.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameCynoscion nebulosusFamilySciaenidae (Drums or croakers)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length100.0Common length36.0Depth range10 m (33 ft)EnvironmentMarine; brackish; demersal; depth range 10 - ? mClimateSubtropicalDistributionWestern Atlantic: New York to southern Florida in USA and the entire Gulf of Mexico.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: commercial; gamefish: yesResilienceMedium, minimum population doubling time 1.4 - 4.4 years (K=0.2-0.3; tmax=18; tm=1; Fec=1 million) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026