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Acanthuriformes (Surgeonfishes) >
Acanthuridae (Surgeonfishes, tangs, unicornfishes) > Acanthurinae
Etymology: Acanthurus: Greek, akantha = thorn + Greek, oura = tail (Ref. 45335).
More on author: Randall.
Environment: milieu / climate zone / distribuzione batimetrica / distribution range
Ecologia
marino associati a barriera corallina; distribuzione batimetrica 2 - 30 m (Ref. 90102). Tropical; 24°N - 9°S, 71°E - 116°E
Indian Ocean: Bay of Bengal (Ref. 8940) and the Andaman Sea west to Maldives and Chagos Archipelago, and east to islands of southern Indonesia at least to Bali.
Size / Peso / Age
Maturità: Lm ?  range ? - ? cm
Max length : 25.0 cm TL maschio/sesso non determinato; (Ref. 9710)
Spine dorsali (totale) : 8; Raggi dorsali molli (totale) : 23 - 33; Spine anali: 3; Raggi anali molli: 22 - 29. Margin of caudal fin narrow and white. No orange area behind gill opening and extending ventrally behind base of pectoral fins (juveniles mimic the angelfish Centropyge eibli) (Ref 9808).
Body shape (shape guide): short and / or deep.
Occurs in shallow lagoon and seaward reefs, in areas of mixed coral, rock or sand. Juveniles mimic the cryptic Centropyge eibli (Ref. 9710, 48637).
Life cycle and mating behavior
Maturità | Riproduzione | Deposizione | Uova | Fecundity | Larve
Randall, J.E., 1993. Acanthurus tristis, a valid Indian ocean surgeonfish (Perciformes: Acanthuridae). Spec. Publ. J.L.B. Smith Inst. Ichth. (54):1-8. (Ref. 8940)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
Pesca: commerciale; Acquario: Commerciale
Strumenti
Special reports
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Estimates based on models
Preferred temperature (Fonte Biblio.
123201): 28 - 29, mean 28.7 °C (based on 180 cells).
Phylogenetic diversity index (Fonte Biblio.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02344 (0.01118 - 0.04914), b=2.95 (2.78 - 3.12), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Trophic level (Fonte Biblio.
69278): 2.2 ±0.1 se; based on size and trophs of closest relatives
Resilienza (Fonte Biblio.
120179): Alto, tempo minimo di raddoppiamento della popolazione meno di 15 mesi (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (15 of 100).
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Nutrients (Ref.
124155): Calcium = 71.5 [30.5, 207.8] mg/100g; Iron = 0.809 [0.309, 1.972] mg/100g; Protein = 18.1 [16.9, 19.4] %; Omega3 = 0.104 [0.048, 0.220] g/100g; Selenium = 16.6 [5.7, 49.5] μg/100g; VitaminA = 44.5 [10.5, 175.3] μg/100g; Zinc = 3.05 [0.96, 5.66] mg/100g (wet weight);