分类 / Names
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Teleostei >
Siluriformes (Catfishes) >
Sisoridae (Sisorid catfishes) > Sisorinae
Etymology: Gagata: Local fish name, kenyakatta, in Bengal.
More on author: Hamilton.
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水; 半咸淡水 居于水底的; pH range: 6.0 - 7.2; dH range: ? - 15. 热带; 20°C - 24°C (Ref. 2059)
Asia: widely distributed in the Ganges basin, the Indus River system, and the Mahanadi River. Reported from Myanmar (Ref. 4833) and the Salwin River (=Salween River) in Thailand (Ref. 1632).
亚洲: 广泛分布于恒河流域，印度河系统, 与马哈维里河。 记录来自在泰国的缅甸 (参考文献 4833) 与 Salwin 河 (=萨尔温江)了。 (参考文献 1632)
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 15.0 cm SL 雄鱼/尚未辨别雌雄; (Ref. 4833)
简单描述
检索表 | 型态特徵 | 形态测量图
背的软条 (总数) : 6; 臀鳍软条: 9 - 12; 脊椎骨: 35 - 36. Matures at less than 7 cm SL. Dorsal with dark saddles extending ventrally only to lateral line. Caudal fin with transverse black bar across peduncle and round or square black spot on middle of each lobe. Dorsal fin with black spot on distal part of anterior rays. Anal fin with 4-5 simple rays, 9-11 branched rays. Upper jaw and 4th ceratobranchial toothless; lower jaw with few conical teeth in pocket or depression near symphysis. Snout tip acutely pointed in lateral view, with tip separated from the rest of the snout by distinct notch (Ref. 40780).
在少于 7 公分 SL 时成熟。 背部有腹地只有对侧线延伸的深色的鞍状斑。 在每个叶的中央上尾鳍有横过梗与圆或方形的黑色斑点的横跨的黑色横带。 在前面鳍条的末梢部部份上的背鳍有黑色斑点。 臀鳍有 4-5 单一的鳍条,9-11个分支条。 上颌与第 4个角鳃骨无齿的; 在愈合处附近的口袋或凹洼中下颌有少数锥形齿。 吻顶端尖锐的在侧面中, 与与明显凹槽的其它吻部分开的顶端.(参考文献 40780)
Found in fresh and tidal rivers (Ref. 41236).
发现于生鲜地了与有潮汐涨落的河川.(参考文献 41236)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
亚洲: 广泛分布于恒河流域，印度河系统, 与马哈维里河。 记录来自在泰国的缅甸 (参考文献 4833) 与 Salwin 河 (=萨尔温江)了。 (参考文献 1632)
Talwar, P.K. and A.G. Jhingran, 1991. Inland fishes of India and adjacent countries. Volume 2. A.A. Balkema, Rotterdam, i-xxii + 543-1158, 1 pl. (Ref. 4833)
人类利用
渔业: 商业性
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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=0.00562 (0.00352 - 0.00899), b=3.04 (2.91 - 3.17), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
营养阶层 (Ref.
69278): 3.2 ±0.4 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 vulnerability (10 of 100).
