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Naso lituratus  (Forster, 1801)

Orangespine unicornfish
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Naso lituratus
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Actinopterygii 輻鰭魚綱 (條鰭魚) > Perciformes (Perch-likes) > Acanthuridae (Surgeonfishes, tangs, unicornfishes) > Nasinae
Etymology: Naso: Latin, nasus = nose (Ref. 45335).

環境 / 氣候 / 範圍 生態學

; 海洋 礁區魚類; 深度上下限 0 - 90 m (Ref. 9710), usually 5 - 30 m (Ref. 37792).    24°C - 26°C (Ref. 27115), preferred ?; 35°N - 30°S, 96°E - 127°W

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Pacific Ocean: Honshu, Japan south to the Great Barrier Reef and New Caledonia and east to the Hawaiian Islands, French Polynesia, and Pitcairn. Eastern Pacific: Clipperton Island. Once regarded a wide-ranging Indo-Pacific species, the Indian Ocean population is now recognized as a separate species, Naso elegans.

大小 / 重量 / 年齡

Maturity: Lm ?  range ? - ? cm
Max length : 46.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 37792)

簡短描述 型態特徵 | 形態測量圖

背棘 (總數): 6; 背的軟條 (總數): 28-31; 臀棘 2; 臀鰭軟條: 29 - 31. Dorsal fin black, the black continuing as a pointed projection onto nape, with a pale blue line at base and a broad outer white zone on soft portion; anal fin mainly orange; dorsal and anal fins with a narrow blue margin and black submarginal line; caudal fin with a yellow submarginal band posteriorly (Ref. 37792). Caudal fin emarginate with adult males having trailing filaments from each corner (Ref. 37792).

生物學特性     字彙 (例如 epibenthic)

Found in areas of coral, rock, or rubble of lagoon and seaward reefs, Ref. 48637. Benthopelagic (Ref. 58302). Adults usually in small groups. Juveniles in shallow rocky reefs, sometimes in small aggregations mixed with other acanthurids of similar size (Ref. 48637). Feed mainly on leafy brown algae (Sargassum and Dictyota). Sometimes in large aggregations (Ref. 37792). Very seldom poisonous (Ref. 4795). Pair-spawning has been observed.

Life cycle and mating behavior 成熟度 | 繁殖 | 產卵場 | | 孕卵數 | 仔魚

Probably spawn in pairs (Ref. 240).

主要參考資料 Upload your references | 參考文獻 | 合作者 : Randall, John E. | 合作者

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)

IUCN 瀕危狀態 (Ref. 115185)

CITES (Ref. 94142)

Not Evaluated

對人類具威脅

  (Ref. 4716)




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