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Biology

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Utilized for food (Ref. 89718).
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Importance

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aquaculture: commercial
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分布

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廣泛分布於中國大陸東側長江以南與臺灣之淡水域。臺灣名地河川之中、上游及其支流皆有分布。
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臺灣魚類資料庫
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利用

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為臺灣河川最主要的溪釣種類之一。近年來,水產試驗所及民間均已開始嘗試人工養殖,為頗具養殖潛力之本土性魚種。通常以鹽烤、紅燒或清蒸(大型)均可。
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描述

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體延長而近於紡綞形,尾部側扁。頭寬廣而稍尖。吻短,圓鈍而突出;成魚吻端具多個堅硬的追星。口下位,口橫裂而寬廣,上頜前方吻褶發達,下頜有發達的角質邊緣,前緣平直而成鏟狀。具兩對短小口鬚,不易察覺。咽頭齒3列,齒式5.3.2-2.3.5。鰓耙數32-34。鱗片中等大,腹鰭基部具狹長的腋鱗;側線完整,略成弧形,側線鱗數45-47。背鰭最後一枝不分枝鰭條為光滑之軟條,各鰭均無硬棘,背鰭軟條 3(不分枝軟條)+ 8(分枝軟條);臀鰭3(不分枝軟條)+ 5(分枝軟條);腹鰭1(不分枝軟條)+ 9(分枝軟條)。體呈銀白色,體背部為灰黃綠色,腹部淺黃至淡白色。體側及背部鱗片具新月形的黑點;背鰭鰭膜的末端有黑色的斑紋。
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棲地

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初級淡水魚。棲息於河川上游水質冷而清澈的水域,但對環境的適應力遠甚於冷水性之虹鱒。以落差稍大的河川較多,藏身於深潭或石縫間。以附著於石頭上的藻類為主食,也攝取小型之無脊椎動物。
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Onychostoma barbatulum

provided by wikipedia EN

Onychostoma barbatulum (common name: Taiwan shovel-jaw carp) is a species of ray-finned fish in the family Cyprinidae. It can grow to 19 cm (7.5 in) SL, but commonly only to about half of that.[2]

Onychostoma barbatulum is found in Taiwan and in the Pearl River Basin of southern China. It is a herbivorous species that occurs in fast-flowing sections of rivers.[1] Its populations may be dramatically impacted by typhoon-related disturbance, in one documented case nearly extirpating a local population.[3]

References

  1. ^ a b Cui, K. (2011). "Onychostoma barbatulum". The IUCN Red List of Threatened Species. IUCN. 2011: e.T166046A6177548. doi:10.2305/IUCN.UK.2011-2.RLTS.T166046A6177548.en. Retrieved 11 January 2018.
  2. ^ Froese, Rainer; Pauly, Daniel (eds.) (2013). "Onychostoma barbatulum" in FishBase. December 2013 version.
  3. ^ Chen, J. P.; Wen, C. K. C.; Meng, P. J.; Cherh, K. L.; Shao, K. T. (2014). "Ain't no mountain high enough: The impact of severe typhoon on montane stream fishes". Environmental Biology of Fishes. 98: 35–44. doi:10.1007/s10641-014-0243-x. S2CID 16104648.
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Onychostoma barbatulum: Brief Summary

provided by wikipedia EN

Onychostoma barbatulum (common name: Taiwan shovel-jaw carp) is a species of ray-finned fish in the family Cyprinidae. It can grow to 19 cm (7.5 in) SL, but commonly only to about half of that.

Onychostoma barbatulum is found in Taiwan and in the Pearl River Basin of southern China. It is a herbivorous species that occurs in fast-flowing sections of rivers. Its populations may be dramatically impacted by typhoon-related disturbance, in one documented case nearly extirpating a local population.

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