HomeFish encyclopediaRay-finned fishesPerch-like fishDrums or croakersKarut croaker Karut croaker (Johnius carutta) Scientific name: Johnius carutta Bloch, 1793 The Karut croaker (Johnius carutta) is a freshwater fish of the family Sciaenidae. Native range: Indian Ocean, Pakistan eastward to the west coast of the Malay Peninsula. BiologyFound in inshore waters. Enters estuaries. Feeds on small fishes and invertebrates. Sold fresh and dried-salted in markets.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameJohnius caruttaFamilySciaenidae (Drums or croakers)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length30.0Common length20.0Depth range40 m (131 ft)EnvironmentMarine; freshwater; brackish; demersal; amphidromous; depth range ? - 40 mClimateTropicalDistributionIndian Ocean: Pakistan eastward to the west coast of the Malay Peninsula.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: minor commercialResilienceMedium, minimum population doubling time 1.4 - 4.4 years (K=0.44-0.73; tm=1.4) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026