分类 / Names
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Teleostei >
Siluriformes (Catfishes) >
Akysidae (Stream catfishes) > Akysinae
Etymology: subtilis: The specific name is derived from the Latin subtilis (slender), referring to its relatively long and slender body (Ref. 30226).
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: known only from the Mekong basin in Laos and Thailand.
亞洲: 已知只來自在寮國與泰國的湄公河流域了。
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)
简单描述
检索表 | 型态特徵 | 形态测量图
背的软条 (总数) : 6; 臀鳍软条: 9; 脊椎骨: 35 - 36. Distinguished from all its congeners by the following unique combination of characters: slender body (body depth at anus 11.9-13.5% SL); depth of caudal peduncle 5.5-5.8% SL; extremely narrow head ( head width 17.5-18.7% SL); small and close set-eyes (eye diameter 7-9% HL; interorbital distance 33-38% HL); short nasal barbels (23-30% HL); possession of 35-36 total vertebrae; presence of 1+ 3 gill rakers on the first branchial arch; 5-6 serrae on the posterior edge of the pectoral spine; 8 branchiostegal rays; caudal fin strongly forked with pointed lobes (Ref. 30226). Body brown with 2 dark patches along dorsum at base of dorsal and adipose fins (Ref. 43281).
在独特的组合特徵之后与它所有的同类区分了藉由: 细长的身体 (在肛门 11.9-13.5% SL 的体高); 尾柄 5.5-5.8% SL 的深度; 非常狭窄的头部 ( 头部宽度 17.5-18.7% SL); 小的而且靠拢在一起-眼 (眼直径 7-9% HL; 眼间距 33-38% HL); 短的鼻触须 (23-30% HL); 35-36个总脊椎骨的所有物; 在第一个鳃弓上有 1+3个鳃耙; 在胸棘的后缘上的 5-6 锯齿; 8个鳃条骨; 尾鳍强烈分叉有尖的叶.(参考文献 30226) 身体褐色的有 2个深色的区块在背鳍基底与脂肪的鳍沿着背面.(参考文献 43281)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
亞洲: 已知只來自在寮國與泰國的湄公河流域了。
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)
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5001 [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).
