Teleostei (teleosts) >
Acanthuriformes (Surgeonfishes) >
Acanthuridae (Surgeonfishes, tangs, unicornfishes) > Nasinae
Etymology: Naso: Latin, nasus = nose (Ref. 45335).
More on authors: Randall & Struhsaker.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; reef-associated; depth range 43 - 220 m (Ref. 58302). Tropical; 29°N - 19°N, 119°E - 156°W (Ref. 57252)
Pacific Ocean: antitropical, from Japan and Lord Howe Island to the Hawaiian Islands.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 60.0 cm TL male/unsexed; (Ref. 9710)
Dorsal spines (total): 6 - 7; Dorsal soft rays (total): 26 - 28; Anal spines: 2; Anal soft rays: 26 - 28. Body elongate, higher and more bluish than N. lopezi. Forehead without rostral prominence even in adults. Two small peduncular plates each with a sharp, approximately semicircular, laterally projecting keel. caudal fin emarginate without a filament. Reaches 46 cm SL.
Found in deep seaward reefs (Ref. 9710). Benthopelagic and mesopelagic (Ref. 58302).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Masuda, H., K. Amaoka, C. Araga, T. Uyeno and T. Yoshino, 1984. The fishes of the Japanese Archipelago. Vol. 1. Tokai University Press, Tokyo, Japan. 437 p. (text). (Ref. 559)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
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Estimates based on models
Preferred temperature (Ref.
123201): 18.7 - 23.3, mean 19.9 °C (based on 19 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 (0.00974 - 0.04480), b=2.96 (2.78 - 3.14), in cm total length, based on LWR estimates for this 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 (44 of 100).
Nutrients (Ref.
124155): Calcium = 32 [19, 60] mg/100g; Iron = 0.536 [0.270, 0.931] mg/100g; Protein = 18.5 [17.3, 19.7] %; Omega3 = 0.137 [0.085, 0.252] g/100g; Selenium = 51.9 [27.1, 95.2] μg/100g; VitaminA = 45.5 [13.5, 153.7] μg/100g; Zinc = 1.36 [0.91, 1.99] mg/100g (wet weight);