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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.
Taxonomic Remarks
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.
Окружающая среда: среда / климатическая зона / пределы глубины / диапазон распространения
экология
морской ассоциированный с рифами; пределы глубины 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.
Длина при первой зрелости / Размер / Вес / Возраст
половая зрелость: Lm 8.8  range ? - ? cm
Max length : 27.0 cm TL самец/пол неопределен; (Ref. 3145); common length : 17.0 cm TL самец/пол неопределен; (Ref. 9267)
колючие лучи спинного плавника (общее число) : 9; членистые (мягкие) лучи спинного плавника (общее число) : 22 - 26; колючие лучи анального плавника: 3; членистые (мягкие) лучи анального плавника: 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.
Body shape (shape guide): short and / or deep; Cross section: compressed.
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)
Статус Красного Списка МСОП (Ref. 130435: Version 2025-2 (Global))
Угроза для людей
Reports of ciguatera poisoning (Ref. 4690)
Использование человеком
рыболовство: коммерческий; аквариум: коммерческий
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Оценки, основанные на моделях
Индекс филогенетического разнообразия (ссылка 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.02344 (0.01946 - 0.02825), b=2.97 (2.93 - 3.01), in cm total length, based on LWR estimates for this species (Ref. 93245). |
Трофический уровень (ссылка 69278) |
2.8 ±0.35 se; based on food items. |
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Generation time |
3.1 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies. |
устойчивость к внешним воздействиям (ссылка 120179) |
средний (среднего размера), минимальное время удвоения популяции 1.4-4.4 года (K=0.35; tm=1-2). |
Уязвимость рыбной ловли (Ref. 59153) |
Low vulnerability (16 of 100). 🛈 |
Климатическая уязвимость (Ref. 125649) |
Low to moderate vulnerability (29 of 100). 🛈 |
Категория цены (Ref. 80766) |
Medium.
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Питательные вещества (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); |