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Teleostei >
Siluriformes (Catfishes) >
Siluridae (Sheatfishes)
Etymology: Silurus: Greek, silouros = a cat fish + Greek, odous = teeth (Ref. 45335).
More on author: Regan.
Issue
Needs a taxonomic reference.
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 居于水底的. 亞熱帶的; 25°N - 24°N
Asia: endemic to Dian Chi Lake, Yunnan, China.
亞洲: 中國雲南滇池的特有種。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 38.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. ); common length : 21.5 cm TL 雄鱼/尚未辨别雌雄; (Ref. 35840)
简单描述
检索表 | 型态特徵 | 形态测量图
背的软条 (总数) : 4 - 6; 臀鳍软条: 61 - 73. Head depressed; eyes small and located in anterior section of head; snout short; lower jaw longer than upper one and its end extending nearly to anterior edge of eyes; barbels 2 pairs, body naked. Body dark gray on back and sides, with cloudy streaks and milky white on belly.
头部扁平的; 眼小的而且位于了头部的前面部分; 吻短; 下颌比上颌长与它的末端对眼的前缘几乎延伸; 触须 2 对, 身体裸露的。 身体深灰色背面与侧边,在腹面上有云状的条纹与乳状的白色。
This carnivorous species lives in the edge of the lake with plenty of waterweeds where it stays at bottom of water by day and comes out to the surface seeking food by dawn and dusk (Ref. 45563, 117912). It relies on the macrophytes for shelter, the disappearance of which from the lake exposed these big fishes in the shallow water which resulted to increased mortality from its natural enemy and human beings. Predation of eggs and juveniles by the introduced
species in the lake may also play an important role (Ref. 117912).
生活在湖的边缘有丰富的水蕴草。 食肉动物。 白天停留在水的底部而且对被在破晓与薄暮之前寻找食物的表面出来。 (参考文献 45563)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
亞洲: 中國雲南滇池的特有種。
Kobayakawa, M., 1989. Systematic revision of the catfish genus Silurus, with description of a new species from Thailand and Burma. Jap. J. Ichthyol. 36(2):155-186. (Ref. 9417)
世界自然保护联盟红皮书 (Ref. 130435)
极度濒危 (CR) (B1ab(ii,iii); D); Date assessed: 01 January 2008
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00562 (0.00278 - 0.01137), b=3.00 (2.83 - 3.17), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.8 ±0.7 se; based on size and trophs of closest relatives
回复力 (Ref.
120179): 中等的, 族群倍增时间最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (28 of 100).
