Pomacentrus nigromanus

Gold back damsel | Black-axil Damsel | Black-fin Damsel
Pomacentrus nigromanus
Pomacentrus nigromanus, Raja Ampat, Indonesia, Photo: Rick Stuart-Smith
Pomacentrus nigromanus
Pomacentrus nigromanus, juvenile, Photo: Rick Stuart-Smith
Pomacentrus nigromanus
Pomacentrus nigromanus, Photo: Rick Stuart-Smith
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Pomacentrus nigromanus
Pomacentrus nigromanus
Pomacentrus nigromanus


Tropical Indo-Pacific


Grey and yellow with prominent black spot at pectoral fin base, like P. nigromarginatus (Blackmargin damsel), but with black lower margin of anal fin.


Max Size: 9 cm

Sea Temperature Range: 22.1-31.6°C

Depth: 6-60m

Habitat Generalization Index: 10.15

Also referred to as the SGI (Species Generalisation Index), this describes the habitat niche breadth of the species. Species with values less than 15 are found in a relatively narrow range of reef habitat types (specialists), while those over 25 may be found on most hard substrates within their range (generalists). Learn more here.

Conservation and Rarity

IUCN Status: Not Evaluated

Occurrence: Frequent (13.3% of sites)

Occurrence describes how often the species is found on surveys within its distribution. It is calculated as the % of reef sites surveyed by RLS divers across all the ecoregions in which the species has been observed

Abundance: Large aggregations (124 per transect)

Abundance is calculated as the average number of individuals recorded per RLS transect, where present.