分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Siluriformes (Catfishes)
鯰形目 (Catfishes) >
Siluridae (Sheatfishes)
鯰科 (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
生態學
; 淡水 居於水底的. 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 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 38.0 cm TL 雄魚/尚未辨別雌雄; (Ref. ); common length : 21.5 cm TL 雄魚/尚未辨別雌雄; (Ref. 35840)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背的軟條 (總數) : 4 - 6; 臀鰭軟條: 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.
頭部扁平的; 眼小的而且位於了頭部的前面部分; 吻短; 下頜比上頜長與它的末端對眼的前緣幾乎延伸; 觸鬚 2 對, 身體裸露的。 身體深灰色背面與側邊,在腹面上有雲狀的條紋與乳狀的白色。
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).
生活在湖的邊緣有豐富的水蘊草。 食肉動物。 白天停留在水的底部而且對被在破曉與薄暮之前尋找食物的表面出來。 (參考文獻 45563)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
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)
IUCN 瀕危狀態 (Ref. 130435)
極危 (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).
營養階層 (Ref.
69278): 3.8 ±0.7 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 中等的, 族群倍增時間最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (28 of 100).
