分类 / Names
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Teleostei >
Siluriformes (Catfishes) >
Akysidae (Stream catfishes) > Akysinae
Etymology: inermis: The specific name is derived from the Latin inermis (unarmed), referring to the lack of serrations on the pectoral spine..
More on authors: Ng & Kottelat.
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 居于水底的. 熱帶
Asia: Xe Banghiang and Xe Kong drainages of the Mekong River drainages in southern Laos.
亞洲: 在寮國南部的 Xe Banghiang 與湄公河流域的 Xe Kong 流域。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 3.5 cm SL 雄鱼/尚未辨别雌雄; (Ref. 37037)
简单描述
检索表 | 型态特徵 | 形态测量图
背棘 (总数) : 1; 背的软条 (总数) : 4 - 5; 臀鳍软条: 8 - 11; 脊椎骨: 31 - 35. Can be differentiated from its congeners in the following characters: lacking distinct serrae on posterior edge of pectoral spine; adipose fin with moderately long base, its length 13.4-16.7 %SL; eye diameter 7-10 %HL; length of nasal barbel 38-57 %HL; tip of snout noticeably in front of apex of lower jaw; large anterior and posterior nostrils present, closely situated together and separated only by base of nasal barbel; caudal fin with 7+7-8 rays; branchiostegal rays 6-7; a light yellow snout with a sharp contrasted edge; color pattern consisting of dorsal and ventral light yellow patches on the body that sometimes coalesce at mid-height of the flank (Ref. 37037).
能在下列的特徵被与它的同类区别: 在胸棘的后缘上的缺乏明显的锯齿; 用中等长度的基底，它的长度 13.4-16.7% SL 的脂鳍; 眼直径 7-10% HL; 鼻触须 38-57% HL 的长度; 吻尖显着地在下颌的尖顶之前; 大的前面与后面的鼻孔呈现, 接近地一起位于而且只有被鼻触须的基底分开; 尾鳍有 7+7-8 鳍条; 鳃条骨 6-7; 一淡黄色的吻部有一个锐利的被对比的边缘; 包含在有时合并的身体上的背部与腹的淡黄色的区块的彩色斑纹在-之中侧面的高度.(参考文献 37037)
Akysis inermis has been found in various habitats from swift creek to riffles in streams and rapids in large rivers. All habitats had in common a stony (gravel to boulder) substrate and relatively swift current. In most of them the water was clear in the dry season (Ref. 37037).
Akysis inermis 已经在从迅急的小溪到急流被在大河中的溪流与急流中发现于各种不同的栖息地。 所有的栖息地有在普遍一个多石 (砾石到大圆石) 底部与相当急流的水流中。 在大部分的他们水是清澈的乾季时.(参考文献 37037)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
亞洲: 在寮國南部的 Xe Banghiang 與湄公河流域的 Xe Kong 流域。
Ferraris, C.J. Jr., 2007. Checklist of catfishes, recent and fossil (Osteichthyes: Siluriformes), and catalogue of siluriform primary types. Zootaxa 1418:1-628. (Ref. 58032)
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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): 3.4 ±0.6 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
