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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.
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 底中水层性. 熱帶
Asia: India and probably Pakistan.
亞洲: 印度與可能巴基斯坦。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 7.6 cm TL 雄鱼/尚未辨别雌雄; (Ref. 4833)
简单描述
型态特徵 | 形态测量图
背棘 (总数): 1; 背的软条 (总数): 6; 脊椎骨: 34 - 35. Apparently a small species with a deep body, approximately equal to head length. Eye very large, greater than snout length. Snout blunt; mesethmoid greatly enlarged, more strongly projecting ventrally when compared with congeners. Tympanum large, its width equal to eye diameter. Swim bladder chamber with a greatly expanded dorsal bony roof but no ventral bony enclosure. Jaws with well-developed conical teeth in several irregular rows. Cranial roofing bones more superficial than in any other Nangrina, and covered with thin skin; cranial surface rugose. Posterior cranial fontanel very small, less than 1/3 length of anterior fontanel; lateral fontanels absent; subtemporal fossa absent. Anal fin with 4-5 simple rays, 8-10 branched rays (Ref. 40780).
显然地一个小的种具有一个深的身体, 大约等于头长。 眼非常大又大于吻的长度。 吻钝的; mesethmoid 明显增大, 更强烈突出腹地当与同类相较了。 鼓膜大的, 它的宽度等于眼直径。 泳鳔腔室具有一个很大扩大背部的多骨顶部但是没有腹的多骨附件。 在一些不规则的列中颌部有发展良好的锥形齿。 头盖的顶盖骨更多的表面超过在任何其他的 Nangrina 中, 而且覆盖着薄皮; 头盖的表面多皱纹的。 在后部的头盖囟门非常小的, 少于前面囟门的 1/3 长度; 侧面的囟门不存在; 子当时的窝不存在。 臀鳍有 4-5 单一的鳍条,8-10个分支条.(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: 印度與可能巴基斯坦。
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)
人类利用
渔业: 商业性
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俗名同种异名新陈代谢捕食者生态毒物学繁殖成熟度产卵场产卵群集孕卵数卵卵的发育
年龄范围成长体长-体重体长-体长体长-频率形态测量图型态特徵仔鱼稚鱼动力学入添量丰度BRUVS
参考文献养殖养殖信息品种遗传学Electrophoreses遗传率疾病加工NutrientsMass conversion
合作者照片Stamps, Coins Misc.声音神经毒速度泳型鳃区Otoliths脑重体重比眼睛色素
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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): 3.1 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
