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Naso caesius Randall & Bell, 1992

Gray unicornfish
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Native range | All suitable habitat | Point map | Year 2050
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Naso caesius   AquaMaps   Data sources: GBIF OBIS
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Image of Naso caesius (Gray unicornfish)
Naso caesius
Picture by Randall, J.E.


Timor-Leste country information

Common names: [No common name]
Occurrence: Native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments:
National Checklist:
Country Information: ttps://www.cia.gov/library/publications/the-world-factbook/geos/tt.htm
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Allen, G.R. and M.V. Erdmann, 2013
National Database:

Common names from other countries

分類 / Names 俗名 | 同種異名 | Catalog of Fishes(, ) | ITIS | CoL | WoRMS | Cloffa

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);  caesius: Naso caesius is in reference to its most common ground color which is bluish grey..
  More on authors: Randall & Bell.

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

海洋 礁區魚類; 深度上下限 15 - 50 m (Ref. 90102).   熱帶

分布 國家 | FAO區域 | 生態系 | 發現紀錄 | Point map | 簡介 | Faunafri

Pacific Ocean: Northern Marianas, Marshall Islands, Hawaiian Islands, Pitcairn group, Society Islands (French Polynesia), Australia and New Caledonia.
太平洋: 北方馬里亞納群島,馬紹爾群島,夏威夷群島,皮特凱恩島群,社會群島 (法屬玻里尼西亞) 與新加勒多尼亞。

大小 / 重量 / 年齡

Maturity: Lm ?  range ? - ? cm
Max length : 45.6 cm SL 雄魚/尚未辨別雌雄; (Ref. 9944)

簡短描述 檢索表 | 型態特徵 | 形態測量圖

背棘 (總數) : 6 - 7; 背的軟條 (總數) : 27 - 30; 臀棘: 2; 臀鰭軟條: 28 - 31. Bluish grey to grey-brown, capable of displaying a colour pattern of vertically elongate blotches (lighter or darker than ground colour) on side and upper part of body. Opercular and preopercular margins not dark brown. Caudal fin uniform in colour. Gill rakers on lower limb of gill arches entirely pale. Edge of lower lip not white (Ref 9808).
藍灰色的到灰褐色, 能夠在側邊與身體的上半部上求偶一個垂直地細長的斑塊 (較淡或者比土地的顏色顏色更深) 的顏色圖案。 不深褐色的鰓蓋與前鰓蓋骨邊緣。 尾鰭均勻的在顏色中。 在鰓弓的下肢上的鰓耙完全灰白。 下唇的邊緣不是白色的 (參考文獻 9808).

生物學特性     字彙 (例如 epibenthic)

Benthopelagic over coral and rock (Ref. 58302). Occurs singly or in aggregations along clear seaward and outer lagoon reefs and channels (Ref. 37816). Feeds in midwater on zooplankton (Ref. 90102).

各別地生存或者聚集成群沿著清澈的臨海與潟湖外部礁與峽道.(參考文獻 37816)

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

太平洋: 北方馬里亞納群島,馬紹爾群島,夏威夷群島,皮特凱恩島群,社會群島 (法屬玻里尼西亞) 與新加勒多尼亞。

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. and L.J. Bell, 1992. Naso caesius, a new acanthurid fish from the Central Pacific. Pac. Sci. 46(3):344-352. (Ref. 9944)

IUCN 瀕危狀態 (Ref. 130435)

  無危 (LC) ; Date assessed: 06 May 2010

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

對人類具威脅

  無害處的




人類使用

漁業: 商業性
FAO(Publication : search) | FishSource | 周邊海洋

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Estimates based on models

Preferred temperature (Ref. 115969): 24.7 - 28.8, mean 26.5 (based on 82 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01995 (0.00906 - 0.04395), b=3.00 (2.82 - 3.18), in cm Total Length, based on LWR estimates for this Genus-body shape (Ref. 93245).
營養階層 (Ref. 69278):  2.3   ±0.1 se; based on size and trophs of closest relatives
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):  Moderate vulnerability (42 of 100).
價格種類 (Ref. 80766):   Medium.