分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Acanthuriformes (Surgeonfishes) >
Acanthuridae (Surgeonfishes, tangs, unicornfishes) > Acanthurinae
Etymology: Acanthurus: Greek, akantha = thorn + Greek, oura = tail (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 礁區魚類; 深度上下限 5 - 20 m (Ref. 9710). ; 12°S - 34°S, 142°E - 170°W
Western Pacific: the Great Barrier Reef, Chesterfield Islands and the Coral Sea, Vanuatu, New Caledonia, Loyalty Islands, Tonga and Samoa Islands.
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 33.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 2334)
背棘 (總數) : 8 - 9; 背的軟條 (總數) : 22 - 33; 臀棘: 2 - 3; 臀鰭軟條: 18 - 31; 脊椎骨: 22. Body varying from light bluish grey to dark brown, without blue lines. Outer part of pectoral fins abruptly white, the demarcation curved such that pale area is broadest on central part of fin. Least depth of caudal peduncle 3.1 to 3.3 times in head length. Maximum standard length about 33 cm (Ref 9808).
Found off steep outer-reef escarpments. May be solitary but most commonly seen in small aggregations feeding on zooplankton well off the bottom.
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
Randall, J.E., G.R. Allen and R.C. Steene, 1990. Fishes of the Great Barrier Reef and Coral Sea. University of Hawaii Press, Honolulu, Hawaii. 506 p. (Ref. 2334)
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Estimates based on models
Preferred temperature (Ref.
123201): 24.7 - 28.4, mean 26.3 °C (based on 333 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01413 (0.00613 - 0.03255), b=3.00 (2.79 - 3.21), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.4 ±0.45 se; based on food items.
回復力 (Ref.
120179): 中等的, 族群倍增時間最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (23 of 100).
Nutrients (Ref.
124155): Calcium = 54.5 [24.6, 203.9] mg/100g; Iron = 0.796 [0.280, 2.047] mg/100g; Protein = 19 [18, 20] %; Omega3 = 0.141 [0.062, 0.322] g/100g; Selenium = 12.8 [4.2, 42.7] μg/100g; VitaminA = 122 [48, 309] μg/100g; Zinc = 2.32 [0.73, 4.45] mg/100g (wet weight);
