分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Cypriniformes (Carps) >
Xenocyprididae (East Asian minnows)
Eponymy: Dr Charles William Metz (1889–1975) was an American zoologist, geneticist and taxonomist whose doctorate was awarded by Stanford University. He co-wrote: A catalog of the fishes known from the waters of Korea (1913). (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 底中水層性. 亞熱帶的
Asia: Yunnan, China and Taiwan (Ref. 45563); also observed from Viet Nam (Ref. 44416).
亞洲: 中國雲南與台灣;(參考文獻 45563) 也從越南觀察。 (參考文獻 44416)
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 7.3 cm SL 雄魚/尚未辨別雌雄; (Ref. 33784)
Head small, pointed and slender; snout short and protruded; mouth slit slanted; large eyes at the center of head, towards tip, interorbital space convex. Long, rhombic body; back behind head convex. Belly scutes from base of pelvic fin to anus. Body gray on back, silvery white on lower sides and belly, a horizontal gray stripe along the central axis; gray on caudal fin and semi-transparent on others (Ref. 45563).
頭部小的﹐尖的與細長的; 吻短而且伸出; 口裂斜的; 在頭部的中心的大眼, 向頂端，眼間隔凸狀。 長又菱形的身體; 頭部後面的背部凸狀。 從腹鰭的基底到肛門的腹面鱗甲。 身體灰色背面, 銀白色在下側與腹面上，一條水平的灰色斑紋沿著中央的軸; 在尾鰭上的灰色與半透明的在其它身上.(參考文獻 45563)
Adults inhabit clear still or slow-moving waters of small rivers (Ref. 45563).
棲息於小河的清澈靜止或流速緩慢水域。 (參考文獻 45563)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
亞洲: 中國雲南與台灣;(參考文獻 45563) 也從越南觀察。 (參考文獻 44416)
Gan, X., J.-H. Lan and E. Zhang, 2009. Metzia longinasus, a new cyprinid species (Teleostei: Cypriniformes) from the Pearl River drainage in Guangxi Province, South China. Ichthyol. Res. 56:55-61. (Ref. 80361)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-2)
無危 (LC) ; Date assessed: 06 August 2010
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00631 (0.00301 - 0.01323), b=3.08 (2.91 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
