HomeFish encyclopediaRay-finned fishesPerch-like fishDamselfishesBlueback damsel Blueback damsel (Pomacentrus simsiang) Scientific name: Pomacentrus simsiang Bleeker, 1856 The Blueback damsel (Pomacentrus simsiang) is a marine fish of the family Pomacentridae. BiologyDorsal spines (total): 13; Dorsal soft rays (total): 14-16; Anal spines: 2; Anal soft rays: 14 - 15. Juveniles bright lemon yellow with blue stripes over the head and a blue-edged ocellus on the soft dorsal fin. This species closely resembles P. grammorhynchus but lacks the distinctive blue spot on the upper caudal peduncle.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific namePomacentrus simsiangFamilyPomacentridae (Damselfishes)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length7.0Depth range0–10 m (0–33 ft)EnvironmentMarine; reef-associated; non-migratory; depth range 0 - 10 mClimateTropicalDistributionIndo-West Pacific: Indonesia (Mentawai Islands), Philippines, Palau, Papua New Guinea, Solomon Islands, Vanuatu, north to the Philippines, Taiwan, and Ryukyu Islands. Reported from New Caledonia.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceHigh, 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