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Acanthuriformes (Surgeonfishes) >
Acanthuridae (Surgeonfishes, tangs, unicornfishes) > Acanthurinae
Etymology: Acanthurus: Greek, akantha = thorn + Greek, oura = tail (Ref. 45335).
More on author: Linnaeus.
Issue
Planes and Fauvelot (2002) studied Acanthurus triostegus over its vast range and published in the journal Evolution and they did not recognize Acanthurus triostegus sandvicensis as a species. FishBase follows Randall, 1956 with A. sandvicensis as a subspecies (synonym) of A. triostegus.
Environment: milieu / climate zone / depth range / distribution range
Ecologia
marinhas associadas(os) a recifes; intervalo de profundidade 0 - 90 m (Ref. 9710), usually 0 - 90 m (Ref. 27115). Tropical; 26°N - 36°S, 25°E - 85°W (Ref. 57245)
Indo-Pacific: throughout the region except for the seas around the Arabian Peninsula. Eastern Pacific: lower Gulf of California to Panama, including the Revillagigedo, Cocos, Clipperton, and Galapagos islands.
Comprimento de primeira maturação / Tamanho / Peso / Idade
Maturity: Lm 8.8 range ? - ? cm
Max length : 27.0 cm TL macho/indeterminado; (Ref. 3145); common length : 17.0 cm TL macho/indeterminado; (Ref. 9267)
Espinhos dorsais (total) : 9; Raios dorsais (total) : 22 - 26; Espinhos anais: 3; Raios anais : 19 - 22. Body olivaceous gray, with 4 vertical stripes (1 stripe on head across the yellow eye; 1 on caudal peduncle); shading to white ventrally, often with a sharp line of demarcation. Sharp, forward-pointing, erectile spine on each side of caudal peduncle which folds down into a groove. Scales minute. Teeth with denticulations on sides and top. Gill rakers 18-22 in anterior row, 19-24 in posterior row.
Adults occur in lagoon and seaward reefs with hard substrate; young abundant in tide pools (Ref. 3145, 48637). Benthopelagic (Ref. 58302). Often feeding near freshwater run-offs where certain algae grow on rocks that are grazed (Ref. 48637). Occasionally form schools; feed on filamentous algae in large aggregations. During spawning, clouds of eggs and sperm are preyed upon by eagle rays which are often present during spawning. Form spawning aggregations (Ref. 27825). Size of metamorphosis from post-larva stage to juvenile is 3.2 cm (Ref. 9267). Utilized as a food fish (Ref. 7364). Minimum depth reported taken from Ref. 27115.
Form spawning aggregations (Ref. 27825).
Randall, J.E., 1956. A revision of the surgeonfish genus Acanthurus. Pac. Sci. 10(2):159-235. (Ref. 1920)
Status na Lista Vermelha da UICN (Ref. 130435)
Ameaça para os humanos
Reports of ciguatera poisoning (Ref. 4690)
Uso pelos humanos
Pescarias: espécies comerciais; Aquário: Espécies comerciais
Ferramentas
Relatórios especiais
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Fontes da internet
Estimates based on models
Preferred temperature (Ref.
123201): 23.4 - 28.9, mean 27.6 °C (based on 2614 cells).
Índice de diversidade filogenética (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02399 (0.01950 - 0.02951), b=2.96 (2.92 - 3.00), in cm total length, based on LWR estimates for this species (Ref.
93245).
Nível Trófico (Ref.
69278): 2.8 ±0.35 se; based on food items.
Generation time: 3.1 ( na - na) years. Estimated as median ln(3)/K based on 2
growth studies.
Resiliência (Ref.
120179): médio(a), tempo mínimo de duplicação da população 1,4 - 4,4 anos (K=0.35; tm=1-2).
Fishing Vulnerability (Ref.
59153): Low vulnerability (16 of 100).
Climate Vulnerability (Ref.
125649): Low to moderate vulnerability (29 of 100).
Nutrients (Ref.
124155): Calcium = 71.8 [30.1, 215.7] mg/100g; Iron = 0.884 [0.331, 2.244] mg/100g; Protein = 18.5 [17.4, 19.6] %; Omega3 = 0.128 [0.057, 0.283] g/100g; Selenium = 23.5 [8.3, 74.2] μg/100g; VitaminA = 32.8 [8.6, 116.6] μg/100g; Zinc = 2.55 [0.81, 4.65] mg/100g (wet weight);
