分類 / 名稱
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Teleostei >
Acanthuriformes (Surgeonfishes)
鱸形目 (Surgeonfishes) >
Acanthuridae (Surgeonfishes, tangs, unicornfishes)
刺尾魚科 (Surgeonfishes, tangs, unicornfishes) > Nasinae
Etymology: Naso: Latin, nasus = nose (Ref. 45335).
More on author: Forsskål.
環境： 環境 / 氣候帶 / 深度上下限 / 配送範圍
生態學
海洋 礁區魚類; 深度上下限 0 - 180 m (Ref. 89972). 熱帶; 26°C - 29°C (Ref. 27115); 35°N - 33°S, 30°E - 128°W
Indo-Pacific: Red Sea and East Africa (Ref. 3145) to the Hawaiian, Marquesas and Tuamoto islands, north to southern Japan, south to Lord Howe and Rapa islands. Presence in Somalia to be confirmed (Ref. 30573).
印度-太平洋: 紅海與東非 (參考文獻 3145) 到夏威夷, 馬可薩斯島與 Tuamoto 島, 北至日本南部, 南至羅得豪島與拉帕群島。 在索馬利亞中的出現被確認.(參考文獻 30573)
大小 / 重量 / 年齡
成熟度: Lm ? range ? - ? cm
Max length : 70.0 cm FL 雄魚/尚未辨別雌雄; (Ref. 9710); common length : 50.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 3146); 最大年齡: 55 年 (Ref. 118238)
背棘 (總數) : 6; 背的軟條 (總數) : 27 - 30; 臀棘: 2; 臀鰭軟條: 27 - 30. This species is characterized by the following: body depth vary from about 2.0 in SL (in subadults) to 2.4-2.6 (adults) in SL; with a tapering, bony, horn on forehead of adults projecting anteriorly at level of eye but not extending in front of mouth (horn first as a bump on forehead at a length of about 12 cm); dorsal profile from snout to horn straight, angle of about 45°; 2 peduncular plates with well-developed forward-curving knife-like spines; emarginate caudal fin when young, truncate with filamentous lobes in adult; males apparently with longer horn, larger peduncular keels and longer caudal filaments than females of the same size; body yellowish to olivaceous gray dorsally, paler ventrally, with blue peduncular plates and keel spines; lips whitish or blue; blue area is sometimes present around pectoral fin; dorsal and anal fins yellowish with narrow blue margins; caudal fin orangish basally, shading to gray, with a broad, pale greenish posterior border and caudal filaments are edged in blue; one transient color phase is a blotchy pale greenish zone below the spinous portion of dorsal fin that narrows and ends beneath the pectoral fin (Ref. 27362).
Body shape (shape guide): short and / or deep; Cross section: compressed.
出現一個觸角或喙。 兩個尾葉延長到絲狀突起內了。 雄性成魚超過相同的大小的雌性傾向有較好的發展的角質又肉梗的棘 , 與尾絲。 尾鰭
Adults inhabit channels, moats, lagoon and seaward reefs with strong surge (Ref. 48637). Benthopelagic (Ref. 58302). Typically occurring in small groups. Sometimes solitary (Ref. 90102). Juveniles in shallow protected bays and harbours (Ref. 48637). Mainly diurnal, feed on coarse leafy brown algae like Sargassum. Pair-spawning has been observed. Minimum depth reported taken from Ref. 128797.
棲息於峽道，壕溝, 用大浪的潟湖與臨海礁石。 典型地出現在小群魚群。 主要日行性, 它吃粗糙多葉的褐色藻類例如馬尾藻 . 成對產卵已經被觀察。
生命週期和交配行為
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Spawn in pairs (Ref. 240).印度-太平洋: 紅海與東非 (參考文獻 3145) 到夏威夷, 馬可薩斯島與 Tuamoto 島, 北至日本南部, 南至羅得豪島與拉帕群島。 在索馬利亞中的出現被確認.(參考文獻 30573)
Myers, R.F., 1991. Micronesian reef fishes. Second Ed. Coral Graphics, Barrigada, Guam. 298 p. (Ref. 1602)
IUCN 瀕危狀態 (Ref. 130435: Version 2025-2 (Global))
無危 (LC) ; Date assessed: 07 May 2010
人類使用
漁業: 商業性; 游釣魚種: 是的; 水族館: 商業性
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基於模型的估計
首選溫度 (參考文獻
123201): 23.4 - 28.8, mean 27.4 °C (based on 1536 cells).
系統發育多樣性指數 (參考文獻
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02399 (0.01795 - 0.03206), b=2.94 (2.86 - 3.02), in cm total length, based on LWR estimates for this species (Ref.
93245).
營養階層 (參考文獻
69278): 2.2 ±0.11 se; based on food items.
回復力 (參考文獻
120179): 非常低的, 最小族群倍增時間超過14 年 (K=0.14; tmax=54.5).
Prior r = 0.28, 95% CL = 0.18 - 0.42, Based on 3 data-limited stock assessments.
釣魚的脆弱性 (Ref.
59153): Low to moderate vulnerability (32 of 100).
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氣候脆弱性 (Ref.
125649): Very high vulnerability (80 of 100).
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營養素 (Ref.
124155): Calcium = 33.3 [16.8, 58.2] mg/100g; Iron = 0.554 [0.285, 1.039] mg/100g; Protein = 18.4 [17.1, 19.7] %; Omega3 = 0.109 [0.065, 0.196] g/100g; Selenium = 58.8 [29.8, 118.5] μg/100g; VitaminA = 21.5 [5.0, 90.1] μg/100g; Zinc = 1.03 [0.66, 1.54] mg/100g (wet weight);
