Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; reef-associated; depth range 15 - 45 m (Ref. 90102). Tropical
Western Central Pacific: Philippines and Indonesia.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 40.0 cm SL male/unsexed; (Ref. 48637); max. published weight: 1.1 kg (Ref. 125599)
Dorsal spines (total): 4 - 5; Dorsal soft rays (total): 28 - 30; Anal spines: 2; Anal soft rays: 29. No narrow dark bars on body. Caudal fin blue in life. Dorsal profile of head from above upper lip to above centre of eye straight. Anterior interorbital region and adjacent space between nostrils strongly convex. Body depth 2.75 to 2.8 times in SL (Ref 9808).
Found in schools, mainly along outer reef walls to moderate depths in pursuit of plankton (Ref. 48637).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Randall, J.E., 1994. Unicornfishes of the subgenus Axinurus Perciformes: Acanthuridae: Naso), with description of a new species. Copeia 1994(1):116-124. (Ref. 10671)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
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Estimates based on models
Preferred temperature (Ref.
123201): 26.5 - 29.1, mean 28 °C (based on 88 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02089 (0.01210 - 0.03607), b=2.95 (2.80 - 3.10), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
Trophic level (Ref.
69278): 2.3 ±0.1 se; based on size and trophs of closest relatives
Resilience (Ref.
120179): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (39 of 100).
Nutrients (Ref.
124155): Calcium = 43.9 [26.9, 85.0] mg/100g; Iron = 0.584 [0.301, 1.009] mg/100g; Protein = 18.6 [17.4, 19.6] %; Omega3 = 0.125 [0.079, 0.230] g/100g; Selenium = 33.8 [17.9, 60.1] μg/100g; VitaminA = 60.2 [18.6, 193.1] μg/100g; Zinc = 1.6 [1.1, 2.3] mg/100g (wet weight);