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) >
Akysidae (Stream catfishes)
河鯰科 (Stream catfishes) > Akysinae
Etymology: Akysis: Derived from Greek, a = without + Greek, kysthos = bladder (Ref. 45335); recavus: The specific name is derived from the Latin recavus (curved inwards), referring to the concave lateral margins of the head..
More on authors: Ng & Kottelat.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 底中水層性. 熱帶
Asia: Chao Phraya basin in Thailand (Ref. 30226). Reported from the Mekong basin in Laos (Ref. 30857).
亞洲: 泰國的湄南河流域.(參考文獻 30226) 在寮國記錄來自湄公河流域了。 (參考文獻 30857)
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 4.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 30857)
背的軟條 (總數) : 5 - 6; 臀鰭軟條: 8 - 9; 脊椎骨: 31 - 33. Distinguished from all its congeners by the following combination of characters: truncate caudal fin; presence of 4 serrae along posterior edge of pectoral spine; slightly concave lateral margins of the head when viewed dorsally; eyes located laterally with a suborbital depression; body depth at anus 8.9-13.5% SL; depth of caudal peduncle 6.1-8.6% SL; length of dorsal-fin base 13.1-22.1% SL; length of adipose-fin base 18.4-25.2% SL; and eye diameter 14-20% HL (Ref. 30226).
在組合特徵之後與它所有的同類區分了藉由: 截形尾鰭; 有 4個鋸齒沿著胸棘的後緣; 當背面看了，些微地凹曲頭部的側面邊緣; 側面地被設置的眼具有一個眶下的凹窪; 在肛門 8.9-13.5% SL 的體高; 尾柄 6.1-8.6% SL 的深度; 背鰭長基底 13.1-22.1% SL; 脂鰭基底 18.4-25.2% SL 的長度; 而且眼直徑 14-20% HL.(參考文獻 30226)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
亞洲: 泰國的湄南河流域.(參考文獻 30226) 在寮國記錄來自湄公河流域了。 (參考文獻 30857)
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 = 0.5000 [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).
營養階層 (Ref.
69278): 3.5 ±0.6 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
