Common names from other countries
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Acanthuriformes (Surgeonfishes) >
Acanthuridae (Surgeonfishes, tangs, unicornfishes) > Acanthurinae
Etymology: Acanthurus: Greek, akantha = thorn + Greek, oura = tail (Ref. 45335).
More on author: Fowler.
Environment: milieu / climate zone / depth range / distribution range
Ecologie
marien; brak water rifbewoner; diepte 0 - 119 m (Ref. 58302), usually 5 - 70 m (Ref. 27115). Tropical; 24°C - 27°C (Ref. 27115); 23°N - 29°S, 32°E - 124°W
Indo-Pacific: East Africa, including the Mascarene Islands (Ref. 37792) to the Hawaiian, Marquesan, and Ducie islands, north to southern Japan, south to Rapa (Austral Islands). The Indian Ocean population is without the white caudal fin.
Grootte / Gewicht / Leeftijd
Maturity: Lm ?  range ? - ? cm
Max length : 27.0 cm TL mannelijk / geslacht onbekend; (Ref. 3145)
Dorsale stekels (totaal) : 9; Dorsale zachte stralen (totaal) : 23 - 26; Anale stekels: 3; Anale zachte stralen: 23 - 26. Body uniformly brown to dark brown; caudal fin pale in color (snow white in live fishes). Small, dark spot below and adjacent to axil of pectoral fin. Anterior gill rakers 15-18; posterior 14-16. Snout length 7.9 to 8.2 times in SL. Least depth of caudal peduncle 2.2 to 2.5 times in head length (Ref 9808).
This occasionally schooling species occurs in steep outer reef slopes and drop-offs (Ref. 1602, 48637). Benthopelagic over coral and sand (Ref. 58302). Feeds on zooplankton, particularly large gelatinous forms, and on fish eggs and crustaceans (Ref. 1920). Minimum depth reported taken from Ref. 128797.
Levenscyclus en paargedrag
Maturities | Voortplanting | Spawnings | Egg(s) | Fecundities | Larven
Randall, J.E., 1956. A revision of the surgeonfish genus Acanthurus. Pac. Sci. 10(2):159-235. (Ref. 1920)
Status op de Rode Lijst van het IUCN (Ref. 130435)
CITES (Ref. 128078)
Not Evaluated
Gevaar voor de mens
Harmless
Gebruik door de mens
Visserij: commercieel; Aquarium: Commercieel
Tools
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Estimates based on models
Preferred temperature (Ref.
115969): 24.6 - 28.8, mean 27.6 (based on 1218 cells).
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02344 (0.01103 - 0.04981), b=2.96 (2.79 - 3.13), in cm Total Length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Trofisch niveau (Ref.
69278): 3.6 ±0.41 se; based on food items.
Weerstandsvermogen (Ref.
120179): Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (17 of 100).