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; melanopterus: From Greek, masculine adjective.
More on authors: Roberts & Ferraris.
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 底中水层性. 熱帶
Asia: Irrawaddy, Sittang and lower Salween basins in Myanmar.
亞洲: 在緬甸的依洛瓦底江, Sittang 與薩爾溫江流域下游。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 15.8 cm SL 雄鱼/尚未辨别雌雄; (Ref. 40780)
背棘 (总数) : 1; 背的软条 (总数) : 6; 脊椎骨: 39 - 41. Body silvery, either without marking or with faint saddles. Fins, except caudal fin, blackened at least distally. Dorsal spine tip not reaching to adipose-fin origin when adpressed. Premaxilla with 2 rows of teeth. Adpressed anal fin fails to reach first lower procurrent caudal-fin rays. Mouth near snout tip; oral opening transverse, entirely ventral to nares; free lips absent. Anal fin with 4-6 simple rays, 10-12 branched rays. Differs from G. gagata in having its dorsal spine not reaching adipose-fin origin (versus reaching and even extending beyond adipose origin when dorsal-spine is depressed); smaller pelvic fin not reaching anal-fin origin (versus reaching anal-fin origin); last anal-fin ray not reaching first lower procurrent caudal-fin rays (versus extending posteriorly to origin of lower procurrent caudal-fin rays); complete bony encapsulation of the swim bladder (versus incomplete); and 2 rows of teeth on the premaxilla (versus 4 rows) (Ref. 40780).
身体银色的, 或没有印记或者有模糊的鞍状斑。 除了尾鳍之外的鳍末梢部地变黑的至少了。 背棘顶端不延伸到脂鳍起源 , 当紧贴的时候。 前颌骨有 2个列的齿。 紧贴的臀鳍无法达到第一个低的前流尾鳍鳍条。 在吻顶端附近的嘴; 口裂横跨的, 完全腹对鼻孔; 分离的唇不存在。 臀鳍有 4-6 单一的鳍条， 10-12 分支条。 有别于 G. gagata 有不被达成脂鳍起源的它的背棘;(对达到甚至延伸超过脂肪的起源当背棘被扁平的时候) 较小的腹鳍不达成臀鳍起源;(对达成臀鳍起源) 最后的臀鳍鳍条不达到第一个低的前流尾鳍鳍条;(对向后延伸对低前流的尾鳍鳍条的起源) 完成骨质封包的泳鳔;(对不完全的) 而且 2 列的牙齿在前颌骨 (对 4 列).(参考文献 40780)
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
亞洲: 在緬甸的依洛瓦底江, Sittang 與薩爾溫江流域下游。
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)
世界自然保护联盟红皮书 (Ref. 130435: Version 2024-2)
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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 (0.00310 - 0.01476), b=3.02 (2.84 - 3.20), 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).
