Powderblue Surgeonfish, Blue Surgeonfish, Powder Blue Tang, Powderblue Surgeonfish
Acanthurus leucosternon, Maldives, Photo: Rick Stuart-Smith
Acanthurus leucosternon, Aceh, Indonesia, Photo: Ian Shaw
Distinctive powder blue body, black face, white chest, yellow dorsal fin and tail base, white pelvic and anal fins, and black-edged pale tail fin. In Australian waters, only recorded at Christmas Island.
Max Size: 54 cm
Sea Temperature Range: 25.4-31.5°C
Habitat: Coral Reef
Habitat Generalisation Index: 12.1
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
IUCN Threat Status: Least Concern
Occurrence: Infrequent (6% 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: Several (7 per transect)
Abundance is calculated as the average number of individuals recorded per RLS transect, where present.