分類 / Names
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Acanthuriformes (Surgeonfishes) >
Acanthuridae (Surgeonfishes, tangs, unicornfishes) > Acanthurinae
Etymology: Acanthurus: Greek, akantha = thorn + Greek, oura = tail (Ref. 45335).
More on author: Forsskål.
Environment: milieu / climate zone / depth range / distribution range
生態学
海 関連する礁; 移住性ではない (Ref. 56001); 深さの範囲 0 - 25 m (Ref. 48637), usually 2 - 25 m (Ref. 27115). Tropical; 24°C - 28°C (Ref. 27115); 31°N - 34°S, 3°E - 123°W
Indo-Pacific: Red Sea south to Transkei, South Africa (Ref. 3145) and east to the Hawaiian and Tuamoto islands, north to southern Japan, south to the southern Great Barrier Reef, New Caledonia, and Rapa (Austral Islands).
Length at first maturity / サイズ / 重さ / 年齢
Maturity: Lm 12.0, range 10 - 14 cm
Max length : 21.0 cm TL オス/雌雄の選別がない; (Ref. 30573)
背面の脊椎 (合計) : 9; 背鰭 (合計) : 24 - 27; 肛門の骨: 3; 臀鰭: 22 - 24. Brown in color when preserved; with or without fine bluish gray longitudinal lines on body; pale pectoral fins with upper edge narrowly black; pelvic fins brown. Lips blackish brown; median upper teeth tend to be pointed. Dorsal fin base with a prominent black spot larger than 1/2 eye diameter; a smaller spot on base of anal fin. Groove of caudal spine encircled with a narrow black margin. Gill rakers on anterior row:20-24; on posterior row:18-23.
Found on hard substrates of shallow lagoon and seaward reefs from the lower surge zone to a depth of more than 15 m (Ref. 27825). Benthopelagic (Ref. 58302). Feed on filamentous algae. Form spawning aggregations (Ref. 27825, 48637). Adults usually in small groups, but form large schools in some oceanic locations. Juveniles are often seen in mixed species aggregations (Ref. 48637). Species at the bottom of the 'pecking order' among surgeon fishes, and as a result employs the strategy of feeding in large schools that overwhelm the territorial defenses of other herbivores (Ref. 1602). Caught with nets (Ref. 30573). Can be eaten both raw and cooked (Ref. 7364). Maximum depth reported at 25m (Ref. 027115)
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Form spawning aggregations (Ref. 27825).
Randall, J.E., 1956. A revision of the surgeonfish genus Acanthurus. Pac. Sci. 10(2):159-235. (Ref. 1920)
IUCNのレッドリストの状況は (Ref. 130435: Version 2024-1)
人間に対する脅威
Reports of ciguatera poisoning (Ref. 31637)
Human uses
水産業: 商業; 水族館・水槽: 商業
用具
特記事項
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インターネットの情報源
Estimates based on models
Preferred temperature (Ref.
123201): 24.6 - 29, mean 27.7 °C (based on 938 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02512 (0.02076 - 0.03039), b=2.96 (2.92 - 3.00), in cm total length, based on LWR estimates for this species (Ref.
93245).
栄養段階 (Ref.
69278): 2.0 ±0.0 se; based on diet studies.
回復力 (Ref.
120179): 手段, １．４年～４．４年の倍増期間の最小個体群 (K=1.00-1.72; tm=2).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (27 of 100).
Nutrients (Ref.
124155): Calcium = 84.4 [37.2, 254.5] mg/100g; Iron = 0.908 [0.345, 2.248] mg/100g; Protein = 18.1 [16.9, 19.3] %; Omega3 = 0.105 [0.048, 0.228] g/100g; Selenium = 16.6 [5.8, 50.9] μg/100g; VitaminA = 42 [10, 168] μg/100g; Zinc = 3.34 [1.04, 6.25] mg/100g (wet weight);
