Chaetodon lunula, Adult, Bali, Indonesia, Photo: Ian Shaw
Chaetodon lunula, Adult. Photo: Rick Stuart-Smith
Chaetodon lunula, Juvenile. Photo: Rick Stuart-Smith
Temperate Australasia, Tropical Indo-Pacific
Mainly yellow body with a dusky back. Black bar through eye followed by vivid white band, and a diagonal black bar sweeping upwards from behind eye to dorsal fin base. Brown/orange diagonal bars on lower body with a black spot on tail base. Juveniles have black ocellus on the rear of dorsal fin.
Max Size: 20 cm
Sea Temperature Range: 21.4-31.3°C
Habitat: Coral Reef, Rocky Reef
Habitat Generalisation Index: 16.5
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: Exploitation, Habitat degradation
IUCN Threat Status: Least Concern
Occurrence: Frequent (19% 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 (3 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