Scarus dimidiatus, Male, QLD, Australia, Photo: Rick Stuart-Smith
Scarus dimidiatus, Juvenile. Photo: Rick Stuart-Smith
Scarus dimidiatus, Male. Photo: Graham Edgar
Scarus dimidiatus, Female, QLD, Australia, Photo: Rick Stuart-Smith
Alternating yellow and dusky bars on upper side of female and juvenile. S. oviceps juvenile and female have single light bar on upper side. Flat tail and purple/blue streak from eye to above pectoral fin in male, bordered below by light streak.
Max Size: 40 cm
Sea Temperature Range: 23.7-31.5°C
Habitat: Coral Reef
Habitat Generalisation Index: 8.1
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: Frequent (13% 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: Few (4 per transect)
Abundance is calculated as the average number of individuals recorded per RLS transect, where present.
Edit by: RD Stuart-Smith, GJ Edgar, AJ Green, IV Shaw. 2015. Tropical Marine Fishes of Australia. Reed New Holland