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
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.
Max Size: 9 cm
Sea Temperature Range: 22.4-30.8°C
Habitat: Coral Reef
Habitat Generalisation Index: 7.4
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
Threats: Habitat degradation
IUCN Threat Status: Not Evaluated
Occurrence: Frequent (12% 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.