Ostorhinchus nigrofasciatus, Naigani Is, Fiji, Photo: Andrew Green
Ostorhinchus nigrofasciatus, Adult, Bali, Indonesia, Photo: Ian Shaw
Five full dark stripes, much wider than inter-spaces which are often yellow. This gives an appearance of a black fish with yellow stripes. Tail spot hard to distinguish and lacks white margin found on very similar O. angustatus. Usually found well back in caves and under ledges, singly or in pairs.
Max Size: 11 cm
Sea Temperature Range: 22.8-30.6°C
Habitat: Coral Reef, Rocky Reef
Habitat Generalisation Index: 6.3
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: Not Evaluated
Occurrence: Infrequent (9% 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