HomeFish encyclopediaRay-finned fishesPerch-like fishJacks and pompanosRound scad Round scad (Decapterus punctatus) Scientific name: Decapterus punctatus Cuvier, 1829 The Round scad (Decapterus punctatus) is a marine fish of the family Carangidae. BiologyInhabits neritic waters, often near sandy beaches. A shoaling species, generally near the bottom. Feeds on planktonic invertebrates, primarily copepods, but also on gastropod larvae, ostracods and pteropods. Spawns well offshore year-round. Eggs are pelagic. A good food fish. Caught commercially and used mainly for bait.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameDecapterus punctatusFamilyCarangidae (Jacks and pompanos)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length30.0Common length18.0Depth range0–100 m (0–328 ft)EnvironmentMarine; reef-associated; depth range 0 - 100 mClimateSubtropicalDistributionWestern Atlantic: Nova Scotia, Canada southward through the Gulf of Mexico and the Caribbean to Rio de Janeiro, Brazil. Eastern Atlantic: Morocco to South Africa, including the Madeira, Canary, Cape Verde, Ascension and St. Helena islands.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: minor commercial; bait: usuallyResilienceHigh, minimum population doubling time less than 15 months (K=0.32; tm SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026