HomeFish encyclopediaRay-finned fishesPerch-like fishJacks and pompanosWhitemouth jack Whitemouth jack (Uraspis uraspis) Scientific name: Uraspis uraspis G?nther, 1860 The Whitemouth jack (Uraspis uraspis) is a marine fish of the family Carangidae. BiologyOccurs in the continental shelf. Forms schools in depths from 50 to at least 130 m. Feeds on epibenthic crustaceans and cephalopods.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameUraspis uraspisFamilyCarangidae (Jacks and pompanos)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length28.0Depth range20–130 m (66–427 ft)EnvironmentMarine; reef-associated; depth range 20 - 130 mClimateDeep-waterDistributionIndo-West Pacific: Red Sea and the Persian Gulf eastward to Sri Lanka; then from India to the Philippines and Oahu, Hawaii, north to the Ryukyu Islands, south to northern Australia. Recently recorded from Reunion.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: minor commercialResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026