HomeFish encyclopediaRay-finned fishesPerch-like fishJacks and pompanosGreen jack Green jack (Caranx caballus) Scientific name: Caranx caballus G?nther, 1868 The Green jack (Caranx caballus) is a brackish-water fish of the family Carangidae. Native range: Eastern Pacific, Santa Cruz Island, California, USA to Peru, including the Gulf of California and the Galapagos Islands. BiologyDorsal soft rays (total): 18-21; Anal spines: 3; Vertebrae: 25Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameCaranx caballusFamilyCarangidae (Jacks and pompanos)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length55.0Common length40.0Depth range3–100 m (10–328 ft)EnvironmentMarine; brackish; pelagic-neritic; depth range 3 - 100 mClimateSubtropicalDistributionEastern Pacific: Santa Cruz Island, California, USA to Peru, including the Gulf of California and the Galapagos Islands.Conservation status (IUCN)Least Concern (LC)Threat to humansHarmlessUsesFisheries: commercialResilienceMedium, minimum population doubling time 1.4 - 4.4 years (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