Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; reef-associated; non-migratory; depth range 12 - 60 m (Ref. 9710). Temperate
Pacific Ocean: southern and central Japan (Ref. 4858) and the northwestern Hawaiian Islands (Midway and Kure).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 15.0 cm TL male/unsexed; (Ref. 4858)
Inhabits rocky and coral reefs (Ref. 9710). Oviparous (Ref. 240), monogamous (Ref. 52884).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Length at sex-change = 12.7 cm TL (Ref. 55367). Sex reversal is completed in 20-39 days (Ref. 34252). Monandric species (Ref. 55367). Distinct pairing (Ref. 240). Monogamous mating is observed as both facultative and social (Ref. 52884). Also Ref. 103751.
Allen, G.R., 1985. Butterfly and angelfishes of the world. Vol. 2. 3rd edit. in English. Mergus Publishers, Melle, Germany. (Ref. 4858)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
Fisheries: commercial; aquarium: commercial
Tools
Special reports
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Internet sources
Estimates based on models
Preferred temperature (Ref.
123201): 20.2 - 25.4, mean 23 °C (based on 40 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.03090 (0.01378 - 0.06932), b=2.88 (2.69 - 3.07), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 2.5 ±0.00 se; based on food items.
Resilience (Ref.
120179): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
Nutrients (Ref.
124155): Calcium = 26.7 [10.8, 50.0] mg/100g; Iron = 0.228 [0.125, 0.434] mg/100g; Protein = 18.3 [17.0, 19.6] %; Omega3 = 0.291 [0.149, 0.581] g/100g; Selenium = 6.33 [2.74, 15.30] μg/100g; VitaminA = 57.5 [11.6, 290.5] μg/100g; Zinc = 0.813 [0.498, 1.378] mg/100g (wet weight);