Halichoeres margaritaceus, Coral Sea, Australia, Photo: Graham Edgar
Halichoeres margaritaceus, Photo: Graham Edgar
Temperate Australasia, Tropical Indo-Pacific
Males green with pink/red mottling on body and lines on face, yellowish belly, black spot in centre of dorsal fin, curved pink line around a horizontal bar on cheek distinguishes this species from similarly marked species. Females olivaceous with irregular white spots on back, white belly with a broad, oblique, pink band between pelvic and anal fins, ocellus in middle of dorsal fin, and a black patch behind eye. Sub-adult males with large black patch on side.
Max Size: 13 cm
Sea Temperature Range: 19.3-29.8°C
Habitat: Coral Reef, Rocky Reef, Seagrass
Habitat Generalisation Index: 7.2
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 (5% 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 (8 per transect)
Abundance is calculated as the average number of individuals recorded per RLS transect, where present.