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) >
Sisoridae (Sisorid catfishes)
吸口鯰科 (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
生態學
; 淡水 底中水層性. 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 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 13.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 40780)
背棘 (總數) : 1; 背的軟條 (總數) : 6; 臀棘: 3; 臀鰭軟條: 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條黑色的斑紋。 延伸至後頭骨突起的末端的中央的縱向凹槽。 上頜骨觸鬚長度超過頭部。 背鰭棘伸展到長的絲狀突起了。 胸鰭棘具有沒有絲狀的突出。 臀鰭有 3 單一的鰭條,11個分支條。 眼直徑短於吻的長度。 峽部有沒有手指狀的突出.(參考文獻 40780) 延伸至腹面與臂的薄膜鰓裂連接到峽部了。 (參考文獻 45563)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
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)
IUCN 瀕危狀態 (Ref. 130435)
無危 (LC) ; Date assessed: 21 December 2009
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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).
營養階層 (Ref.
69278): 3.2 ±0.4 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 vulnerability (10 of 100).
