HomeFish encyclopediaRay-finned fishesPerch-like fishDamselfishesAcapulco major Acapulco major (Stegastes acapulcoensis) Scientific name: Stegastes acapulcoensis Fowler, 1944 The Acapulco major (Stegastes acapulcoensis) is a marine fish of the family Pomacentridae. Native range: Eastern Pacific, Baja California, Mexico to Lobos de Afuera, Peru, including the Cocos and Galapagos islands. BiologyDorsal spines (total): 12; Dorsal soft rays (total): 15-16; Anal spines: 2; Anal soft rays: 13Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameStegastes acapulcoensisFamilyPomacentridae (Damselfishes)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length17.0Common length12.0Depth range2–16 m (7–52 ft)EnvironmentMarine; reef-associated; non-migratory; depth range 2 - 16 mClimateTropicalDistributionEastern Pacific: Baja California, Mexico to Lobos de Afuera, Peru, including the Cocos and Galapagos islands.Conservation status (IUCN)Least Concern (LC)Threat to humansHarmlessUsesFisheries:ResilienceLow, minimum population doubling time 4.5 - 14 years (tmax=32) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026