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Ctenochaetus binotatus Randall, 1955

Twospot surgeonfish
個人による観察記録の追加 Fish Watcher
Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Ctenochaetus binotatus   AquaMaps   Data sources: GBIF OBIS
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Image of Ctenochaetus binotatus (Twospot surgeonfish)
Ctenochaetus binotatus
Picture by Randall, J.E.


Tuvalu country information

Common names: [No common name]
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Seen in Niutao with C. marginatus (Ref. 42056).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/tv.html
National Fisheries Authority: http://www.spc.org.nc/coastfish/Countries/tuvalu/tuvalu.htm
Occurrences: Occurrences Point map
Main Ref: Randall, J.E and K.D. Clements, 2001
National Database:

Common names from other countries

分類 / Names 共通名の | 類義語 | Catalog of Fishes(部類, ) | ITIS | CoL | WoRMS | Cloffa

> Acanthuriformes (Surgeonfishes) > Acanthuridae (Surgeonfishes, tangs, unicornfishes) > Acanthurinae
Etymology: Ctenochaetus: Greek, kteis, ktenos = comb + Greek, chaite = hair (Ref. 45335);  binotatus: Name from Latin 'bi' meaning two and 'notatus' meaning marked; referring to the black spots at the rear base of the dorsal and anal fins..
  More on author: Randall.

Environment: milieu / climate zone / depth range / distribution range 生態学

関連する礁; 深さの範囲 0 - 60 m (Ref. 128797), usually 10 - 50 m (Ref. 27115).   Tropical; 24°N - 34°S, 29°E - 122°W

分布 国々 | 国連食糧農業機関の区域 | エコシステム | 事件 | Point map | 導入 | Faunafri

Indo-Pacific: East Africa to the Tuamoto Islands, north to southern Japan, south to central New South Wales (Australia) and New Caledonia. Not known from the Red Sea, Gulf of Oman, the Gulf, the Hawaiian Islands, Marquesas, Rapa, Pitcairn Islands, and Easter Island.

サイズ / 重さ / 年齢

Maturity: Lm ?  range ? - ? cm
Max length : 22.0 cm TL オス/雌雄の選別がない; (Ref. 5213)

簡単な記述 検索表 | 形態学 | 形態計測学

背面の脊椎 (合計) : 8; 背鰭 (合計) : 24 - 27; 肛門の骨: 3; 臀鰭: 22 - 25. Prominent black spot at the rear base of dorsal and anal fins; adults with a bluish ring around the eye (Ref 1602). Dorsal and anal fins dark brown. Caudal fin brown in adults, yellow in young. Edge of lips smooth. Upper teeth usually with 5 denticulations (not including tip). Anterior gill rakers 23-29 (Ref 42056).

生物学     用語集 (例 epibenthic)

Inhabits coral and rubble areas of deep lagoon and seaward reefs. Usually solitary, grazing on surface algae (Ref. 90102). Feeds by scooping film of detritus and unicellular algae (e.g. dinoflagellate Gambierdiscus toxicus) that produce ciguatera toxin making this species a key link in the ciguatera food chain (Ref. 1602, 48637). Caught with nets (Ref. 30573).

Life cycle and mating behavior Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 幼生

主な参考文献 Upload your references | 参考文献 | コーディネーター : Randall, John E. | 協力者

Randall, J.E and K.D. Clements, 2001. Second revision of the surgeonfish genus Ctenochaetus (Perciformes: Acanthuridae), with descriptions of two new species. Indo-Pac. Fish. (32):33 p. (Ref. 42056)

IUCNのレッドリストの状況は (Ref. 130435)

  軽度懸念 (LC) ; Date assessed: 07 May 2010

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

人間に対する脅威

Other (Ref. 1602)




Human uses


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