HomeFish encyclopediaRay-finned fishesPerch-like fishSnooksArmed snook Armed snook (Centropomus armatus) Scientific name: Centropomus armatus Gill, 1863 The Armed snook (Centropomus armatus) is a brackish-water fish of the family Centropomidae. Native range: Eastern Pacific, Mexico to Ecuador. BiologyBody long and moderately deep; dorsal profile slightly concave behind the eyes; lateral line extending to posterior edge of caudal fin; second anal spine, when folded-down, reaching or surpassing origin of caudal fin; pectoral and pelvic fins sub-equal; first gill arch with 20 to 25 gill rakers; back blue gray; belly silvery; lateral line dark; membranes between spines of first dorsal fin and between second and third anal spines blackSource: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameCentropomus armatusFamilyCentropomidae (Snooks)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length37.0Common length25.0EnvironmentMarine; brackish; demersalClimateTropicalDistributionEastern Pacific: Mexico to Ecuador.Conservation status (IUCN)Least Concern (LC)Threat to humansHarmlessUsesFisheries: commercial; gamefish: yesResilienceHigh, 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