分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Siluriformes (Catfishes) >
Pangasiidae (Shark catfishes)
Etymology: Pangasius: The Vietnamese name of a fish (Ref. 45335); elongatus: Named for its elongated body..
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水; 半咸淡水 底中水层性.
Asia: lower reaches of the Chao Phraya, Bangpakong and Mekong basins of the Indochinese region.
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 28.2 cm SL 雄鱼/尚未辨别雌雄; (Ref. 46915)
简单描述
检索表 | 型态特徵 | 形态测量图
背棘 (总数) : 2; 背的软条 (总数) : 6 - 8; 臀棘: 0; 臀鳍软条: 30 - 33. Body elongated, intermediate predorsal length (30.1-33.9% SL). Short snout length (35.2-42.8% HL). Long caudal peduncle (17.6-21.4% SL). Short mandibular barbels (length 10.4-39.3% HL). Large eyes (19.2-25.5% HL) (Ref. 46915).
Obligate air-breathing in the genus (Ref. 126274); An omnivorous fish, feeding mainly on benthic animals such as mollusks and crustaceans. During rainy seasons, Mekong specimens feed on fruits and various debris (Ref. 46915).
A single 63 cm SL gravid female was observed at Ban Hang Khone in Laos (Ref. 9497). Marketed fresh (Ref. 12693).
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
Pouyaud, L., R. Gustiano and G.G. Teugels, 2002. Systematic revision of Pangasius polyuranodon (Siluriformes, Pangasiidae) with description of two new species. Cybium 26(4):243-252. (Ref. 46915)
人类利用
渔业: 商业性
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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=0.00457 (0.00217 - 0.00962), b=3.09 (2.90 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 2.4 ±0.17 se; based on food items.
Fishing Vulnerability (Ref.
59153): Low vulnerability (24 of 100).
