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俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Siluriformes (Catfishes) >
Akysidae (Stream catfishes) > Akysinae
Etymology: Akysis: Derived from Greek, a = without + Greek, kysthos = bladder (Ref. 45335); varius: The specific name is derived from the Latin varius (variable), in allusion to the highly variable number of serrae on the posterior edge of the pectoral spine..
More on authors: Ng & Kottelat.
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 底中水层性. 熱帶
Asia: Mekong basin.
亞洲: 湄公河流域。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 4.0 cm SL 雄鱼/尚未辨别雌雄; (Ref. 30857)
背的软条 (总数): 5-6; 臀鳍软条: 8 - 10; 脊椎骨: 31 - 33. Distinguished from all its congeners by the following unique combination of characters: truncate caudal fin; length of caudal peduncle 16.1-19.8% SL; depth of caudal peduncle 6.5-9.3% SL; length of adipose-fin base 25.6-29.5% SL; interorbital distance 42-46% HL; eye diameter 13-20% HL; length of nasal barbel 44-66% HL; straight lateral margins of the head when viewed dorsally; and 0-5 serrae on the posterior edge of the pectoral spine (Ref. 30226).
在独特的组合特徵之后与它所有的同类区分了藉由: 截形尾鳍; 尾柄 16.1-19.8% SL 的长度; 尾柄 6.5-9.3% SL 的深度; 脂鳍基底 25.6-29.5% SL 的长度; 眼间距 42-46% HL; 眼直径 13-20% HL; 鼻触须 44-66% HL 的长度; 头部的直侧面边缘当背面看了; 而且在胸棘的后缘上的 0-5个锯齿.(参考文献 30226)
Hides in decomposing vegetation in stream beds, where it apparently feeds on zooplankton and rotifers (Ref. 30226).
躲在水流床分解植物中, 在哪里它显然地吃浮游动物与轮虫.(参考文献 30226)
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
亞洲: 湄公河流域。
Ng, H.H. and M. Kottelat, 1998. The catfish genus Akysis Bleeker (Teleostei: Akysidae) in Indochina, with descriptions of six new species. J. Nat. Hist. 32:1057-1097. (Ref. 30226)
人类利用
更多信息
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
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 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.5 ±0.6 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
