分类 / Names
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Teleostei >
Siluriformes (Catfishes) >
Siluridae (Sheatfishes)
Etymology: Belodontichthys: Greek, belos, -eos = any projectile + Greek, odous = teeth + Greek, ichthys = fish (Ref. 45335); truncatus: Specific name from the Latin truncatus (truncated), in reference to the relatively short head of this species.
More on authors: Kottelat & Ng.
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 居于水底的. 熱帶
Asia: Chao Phraya and Mekong River drainages in Thailand, Laos, Cambodia and Viet Nam. Previously misidentified as Belodontichthys dinema from the Mekong River basin.
亞洲: 湄南河與在泰國，寮國，柬埔寨與越南的湄公河流域。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 60.0 cm SL 雄鱼/尚未辨别雌雄; (Ref. 43281)
简单描述
检索表 | 型态特徵 | 形态测量图
背的软条 (总数) : 3 - 4; 臀鳍软条: 79 - 96. Differs from its sole congener, B. dinema, in having a shorter pectoral fin, 21.9-25.8% SL, versus 25.9-28.9; a shorter head, 20.9-23.9% SL, versus 24.2-26.0; and a shorter snout, 35.4-39.6% HL, versus 39.0-43.1 (Ref. 38432). Strongly compressed head and body; upturned mouth with conspicuous large teeth; pectoral fin longer than head (Ref. 43281).
有别于它的唯一同类， B. dinema, 在有一个方面较短的胸鳍， 21.9-25.8% SL, 对 25.9-28.9; 一个较短的头部， 20.9-23.9% SL, 对 24.2-26.0; 而且一个较短的吻， 35.4-39.6% HL, 对 39.0-43.1.(参考文献 38432) 非常扁长形的头部与身体; 朝上的嘴部具有显着的大齿; 胸鳍长度超过头部.(参考文献 43281)
Occurs in medium to large-sized rivers (Ref. 12975). Found from middle depths to the surface in deeper parts of large rivers. Feeds on smaller fish near the water surface. An excellent game fish which can be caught using hook and line. Presently large numbers are being taken near Stung Treng in Cambodia by explosives (Ref. 12693). Migrates upstream through the Khone Falls in June-July with other silurids and enters the flooded forest in July-October, where it feeds heavily on cyprinids of the genus Henicorhynchus (pa soi, identified as Cirrhinus spp.) (Ref. 38432). Marketed fresh or dried and salted (Ref. 12693).
以其他的鲶鱼溯河回游在六月到七月的经过 Khone 瀑布而且进入在七月-十月被水淹没的森林, 在哪里它吃经常捕食本属 Henicorhynchus 的鲤鱼 (pa soi,鉴定为 Cirrhinus spp了.)。
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
亞洲: 湄南河與在泰國，寮國，柬埔寨與越南的湄公河流域。
Kottelat, M. and H.H. Ng, 1999. Belodontichthys truncatus, a new species of silurid catfish from Indochina ( Teleostei: Siluridae). Ichthyol. Explor. Freshwat. 10(4):387-391. (Ref. 38432)
世界自然保护联盟红皮书 (Ref. 130435: Version 2024-2)
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00562 (0.00279 - 0.01132), b=3.00 (2.83 - 3.17), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 4.1 ±0.7 se; based on size and trophs of closest relatives
回复力 (Ref.
120179): 低的, 最小族群倍增时间4.5 - 14 年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (49 of 100).
