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Diagnostic Description

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Head short and top of head convex; snout short and conical; eyes small and interorbital space wide. Dorsal fin without spine, origin of it nearer to tip of snout and opposite ahead of origin of ventral fin; base of anal fin short and its outer margin truncated.
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Recorder
Grace Tolentino Pablico
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Trophic Strategy

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Inhabits the middle reaches of mountain streams, with strong current and gravel. Feeds on algae and insects.
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Biology

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Inhabits rapid flowing streams.
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分布

provided by The Fish Database of Taiwan
臺灣的特有種,分布於南部及東部的溪流,曾文溪、高屏溪、卑南溪、秀姑鑾溪及花蓮溪等流域均可發現。
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臺灣魚類資料庫
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臺灣魚類資料庫

利用

provided by The Fish Database of Taiwan
食用魚,唯數量日益稀少,已列入保育的魚種。
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描述

provided by The Fish Database of Taiwan
幼魚期與台灣鏟頜魚極相似,隨成長而漸有變化。成魚體延長而近於紡綞形,尾部側扁;體高而隆起,背鰭前方為體之最高處。頭小而短圓,頭頂略隆起。吻短而圓鈍;吻褶向下伸展而蓋著上唇。口下位,口橫裂而寬廣,上頜達眼眶前緣,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,成魚甚至退化。咽頭齒3列,齒式5.3.2-2.3.5。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)+ 8(分枝軟條)。體呈銀白色,體背部為青綠色,腹部銀白色;成魚的頭部及體背側呈暗灰綠色,側線下方的腹側粉紅或淡橘紅色。吻部前方具白色縱帶。所有鰭條淡灰黑色;胸、腹、臀鰭鰭膜為粉紅色。
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棲地

provided by The Fish Database of Taiwan
初級淡水魚。棲息於水流湍急,水流量大並且分布有巨石及岩壁的中上游溪流中棲息。以附著於石頭上的藻類為主食,也攝取水生昆蟲。
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Onychostoma alticorpus

provided by wikipedia EN

Specimen of Onychostoma alticorpus.JPG

Onychostoma alticorpus (common name: Taiwan ku fish) is a species of ray-finned fish in the family Cyprinidae. It can grow to 50 cm (20 in) TL, but commonly only to about half of that.[2][3]

Onychostoma alticorpus is endemic to Taiwan where it is known from only five river basins. It is a herbivorous species that occurs in streams. As with other riverine species, its habitat can be threatened by siltation, dam building, and pollution.[3]

References

  1. ^ Kottelat, M. (1996). "Onychostoma alticorpus". IUCN Red List of Threatened Species. 1996: e.T40699A10352240. doi:10.2305/IUCN.UK.1996.RLTS.T40699A10352240.en. Retrieved 16 November 2021.
  2. ^ Froese, Rainer; Pauly, Daniel (eds.) (2013). "Onychostoma alticorpus" in FishBase. December 2013 version.
  3. ^ a b Chen, I. S. (2008). "Threatened fishes of the world: Onychostoma alticorpus (Oshima, 1920) (Cyprinidae)". Environmental Biology of Fishes. 86: 73–74. doi:10.1007/s10641-007-9323-5.
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Onychostoma alticorpus: Brief Summary

provided by wikipedia EN
Specimen of Onychostoma alticorpus.JPG

Onychostoma alticorpus (common name: Taiwan ku fish) is a species of ray-finned fish in the family Cyprinidae. It can grow to 50 cm (20 in) TL, but commonly only to about half of that.

Onychostoma alticorpus is endemic to Taiwan where it is known from only five river basins. It is a herbivorous species that occurs in streams. As with other riverine species, its habitat can be threatened by siltation, dam building, and pollution.

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