Abudefduf septemfasciatus (Cuvier, 1830)
Banded sergeant
Abudefduf septemfasciatus
photo by Randall, J.E.

Family:  Pomacentridae (Damselfishes), subfamily: Glyphisodontinae
Max. size:  23 cm TL (male/unsexed)
Environment:  reef-associated; marine; depth range 0 - 20 m, non-migratory
Distribution:  Indo-Pacific: East Africa to the Line and Tuamoto islands, north to southern Japan, south to southern Great Barrier Reef.
Diagnosis:  Dorsal spines (total): 13-13; Dorsal soft rays (total): 12-14; Anal spines: 2-2; Anal soft rays: 11-13. Description: Head and body white, vertical bars five grey diffuse, first three bars shading from darker to lighter from dorsal to ventral. Body depth 1.7-2.0 in SL (Ref. 90102).
Biology:  Adults inhabit lagoon and outer reefs in shallow areas exposed to mild or moderate surge. Feed on benthic algae and small invertebrates (Ref. 7247). Oviparous, distinct pairing during breeding (Ref. 205). Eggs are demersal and adhere to the substrate (Ref. 205). Males guard and aerate the eggs (Ref. 205). Highly territorial (Ref. 9710). Maximum depth reported taken from Ref. 128797.
IUCN Red List Status: Least Concern (LC); Date assessed: 15 November 2010 Ref. (130435)
Threat to humans:  harmless


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