分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Siluriformes (Catfishes) >
Sisoridae (Sisorid catfishes) > Sisorinae
Etymology: Gagata: Local fish name, kenyakatta, in Bengal; dolichonema: From the Karen name 'niya gasawyuh' ('niya' - prefix for fish; 'gasaw' - elephant; 'yuh' - fear = 'the fish that elephants are afraid to step on')..
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 底中水层性. 熱帶
Asia: Upper Salween River basin in China and Irrawaddy, Salween and Tenasserim River basins in Myanmar.
亞洲: 薩爾溫江流域。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 13.0 cm SL 雄鱼/尚未辨别雌雄; (Ref. 40780)
背棘 (总数) : 1; 背的软条 (总数) : 6; 臀棘: 3; 臀鳍软条: 10; 脊椎骨: 38 - 39. Dorsal part of thoracic region with 4 black stripes. Median longitudinal groove extending to end of occipital process. Maxillary barbel longer than head. Dorsal-fin spine produced into long filament. Pectoral-fin spine with without filamentous projection. Anal fin with 3 simple rays, 11 branched rays. Eye diameter shorter than snout length. Isthmus with no finger-like projections (Ref. 40780). Gill opening extending to belly and brachial membrane connected to isthmus (Ref. 45563).
背面胸廓的具有 4条黑色的斑纹。 延伸至后头骨突起的末端的中央的纵向凹槽。 上颌骨触须长度超过头部。 背鳍棘伸展到长的丝状突起了。 胸鳍棘具有没有丝状的突出。 臀鳍有 3 单一的鳍条,11个分支条。 眼直径短于吻的长度。 峡部有没有手指状的突出.(参考文献 40780) 延伸至腹面与臂的薄膜鳃裂连接到峡部了。 (参考文献 45563)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
亞洲: 薩爾溫江流域。
Roberts, T.R. and C.J. Ferraris Jr., 1998. Review of South Asian sisorid catfish genera Gagata and Nangra, with descriptions of a new genus and five new species. Proc. Calif. Acad. Sci. 50(14):315-345. (Ref. 40780)
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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=0.00676 (0.00307 - 0.01489), b=3.01 (2.83 - 3.19), in cm total length, based on LWR estimates for this (Sub)family-body shape (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).
