Classification / Names
Common names from other countries
Size / Weight / Age
Max length : 46.0 cm SL male/unsexed; (Ref. 37792)
Marine; reef-associated; depth range 0 - 90 m (Ref. 9710), usually 5 - 30 m (Ref. 37792)
Climate / Range
Tropical; 24°C - 26°C (Ref. 27115), preferred ?; 35°N - 30°S, 96°E - 127°W
Pacific Ocean: Honshu, Japan south to the Great Barrier Reef and New Caledonia and east to the Hawaiian Islands, French Polynesia, and Pitcairn. Eastern Pacific: Clipperton Island. Once regarded a wide-ranging Indo-Pacific species, the Indian Ocean population is now recognized as a separate species, Naso elegans.
Countries | FAO areas | Ecosystems | Occurrences | Introductions
soft rays: 29 - 31. Dorsal fin black, the black continuing as a pointed projection onto nape, with a pale blue line at base and a broad outer white zone on soft portion; anal fin mainly orange; dorsal and anal fins with a narrow blue margin and black submarginal line; caudal fin with a yellow submarginal band posteriorly (Ref. 37792). Caudal fin emarginate with adult males having trailing filaments from each corner (Ref. 37792).
IUCN Red List Status (Ref. 90363)
Fisheries: minor commercial; aquarium: commercial
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index
PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)
2.3 ±0.19 se; Based on food items.
Medium, minimum population doubling time 1.4 - 4.4 years (K=0.3)
Low to moderate vulnerability (34 of 100)