HomeFish encyclopediaRay-finned fishesPerch-like fishDamselfishesPearly sergeant Pearly sergeant (Abudefduf margariteus) Scientific name: Abudefduf margariteus Cuvier, 1830 The Pearly sergeant (Abudefduf margariteus) is a marine fish of the family Pomacentridae. Native range: Western Indian Ocean, known only from Mauritius and Reunion. BiologyDorsal spines (total): 13; Dorsal soft rays (total): 13; Anal spines: 2; Anal soft rays: 13 - 14Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameAbudefduf margariteusFamilyPomacentridae (Damselfishes)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length16.0Depth range2–8 m (7–26 ft)EnvironmentMarine; reef-associated; non-migratory; depth range 2 - 8 mClimateTropicalDistributionWestern Indian Ocean: known only from Mauritius and Reunion.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceMedium, 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