HomeFish encyclopediaRay-finned fishesPerch-like fishDamselfishesBanded sergeant Banded sergeant (Abudefduf septemfasciatus) Scientific name: Abudefduf septemfasciatus Cuvier, 1830 The Banded sergeant (Abudefduf septemfasciatus) is a marine fish of the family Pomacentridae. Native range: Indo-Pacific, East Africa to the Line and Tuamoto islands, north to southern Japan, south to southern Great Barrier Reef. BiologyDorsal spines (total): 13; Dorsal soft rays (total): 12-14; Anal spines: 2; Anal soft rays: 11 - 13Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameAbudefduf septemfasciatusFamilyPomacentridae (Damselfishes)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length23.0Depth range0–3 m (0–10 ft)EnvironmentMarine; reef-associated; non-migratory; depth range 0 - 3 mClimateTropicalDistributionIndo-Pacific: East Africa to the Line and Tuamoto islands, north to southern Japan, south to southern Great Barrier Reef.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: minor 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