分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Cypriniformes (Carps)
鯉形目 (Carps) >
Cyprinidae (Minnows or carps)
鯉科 (Minnows or carps) > Acrossocheilinae
Etymology: Onychostoma: Greek, onyx, -ychos = nail + Greek, stoma = mouth (Ref. 45335).
Environment: milieu / climate zone / 深度上下限 / distribution range
生態學
; 淡水 底中水層性; 深度上下限 0 - 10 m. 亞熱帶的; 25°N - 23°N
Asia: Taiwan (Ref. 6376) and China (Ref. 57879).
亞洲: 台灣。
大小 / 重量 / 年齡
成熟度: Lm ? range ? - ? cm
Max length : 50.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 6898); common length : 25.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 6898)
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.
Body shape (shape guide): short and / or deep; Cross section: compressed.
頭部短與頭頂凸狀; 吻短與錐形; 眼小的與廣闊地的眼間隔。 沒有棘的背鰭 , 它的起源較接近吻尖而且與腹鰭的起源向前相對; 臀鰭基底鰭短與它的外緣截形的。
Inhabits rapid flowing streams.
棲息於流動湍急的溪流。
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
亞洲: 台灣。
Shao, K.-T. and P.L. Lim, 1991. Fishes of freshwater and estuary. Encyclopedia of field guide in Taiwan. Recreation Press, Co., Ltd., Taipei. vol. 31. 240 p. (in Chinese). (Ref. 6898)
IUCN 瀕危狀態 (Ref. 130435: Version 2025-1)
瀕危 (EN) (A1acde); Date assessed: 01 August 1996
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Estimates based on models
Phylogenetic diversity index (參考文獻
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01995 (0.00906 - 0.04395), b=3.01 (2.83 - 3.19), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
營養階層 (參考文獻
69278): 2.6 ±0.3 se; based on size and trophs of closest relatives
回復力 (參考文獻
120179): 低的, 最小族群倍增時間4.5 - 14 年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (44 of 100).
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