Pomacentrus grammorhynchus
Bluespot Damsel | Orange-tail Damsel
Pomacentrus grammorhynchus, adult, Great Barrier Reef, Cairns, QLD, Photo: Andrew Green
Pomacentrus grammorhynchus, Raja Ampat, Indonesia, Photo: Rick Stuart-Smith
Pomacentrus grammorhynchus, QLD, Australia, Photo: Rick Stuart-Smith
Pomacentrus grammorhynchus, juvenile, Northern Great Barrier Reef, Photo: Joe Shields
Same Genus
![Pomacentrus sp. [rhodonotus]](https://images.reeflifesurvey.com/0/species_f2_58d8856ad74db.w400.h266.jpg)
Distribution
Tropical Indo-Pacific
Description
Light blue spot on upper tail base, orange to black spot at pectoral fin base, and orange hue to tail. In coral in sheltered lagoons.
Information
Max Size: 9 cm
Sea Temperature Range: 22.4-30.8°C
Depth: 1-12m
Habitat Generalization Index: 7.44
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 (12.0% 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: Many (19 per transect)
Abundance is calculated as the average number of individuals recorded per RLS transect, where present.