HomeFish encyclopediaRay-finned fishesPerch-like fishJacks and pompanosShortfin scad Shortfin scad (Decapterus macrosoma) Scientific name: Decapterus macrosoma Bleeker, 1851 The Shortfin scad (Decapterus macrosoma) is a marine fish of the family Carangidae. BiologyA predominately pelagic schooling species. Occasionally seen in small groups along reef slopes adjacent to deep water in pursuit of zooplankton. Feeds mainly on small invertebrates. Marketed fresh and salted or dried.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameDecapterus macrosomaFamilyCarangidae (Jacks and pompanos)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length35.0Common length25.0Depth range20–214 m (66–702 ft)EnvironmentMarine; reef-associated; depth range 20 - 214 m, usually 30 - 70 mClimateTropicalDistributionIndo-West Pacific: East Africa (no verified records from the Red Sea) to Malaysia, Indonesia and the Arafura Sea. Eastern Pacific: Gulf of California to Peru, including the Galapagos Islands.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: commercial; bait: usuallyResilienceHigh, minimum population doubling time less than 15 months (K=0.50-1.60) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026