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: Pangasianodon: The Vietnamese name of a fish + Greek, odous = teeth (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 底中水层性; 河川洄游 (Ref. 51243). 熱帶
Asia: endemic to the Mekong basin where it has become rare due to overexploitation.
亞洲: 湄公河流域的特有種在那裡它已經變得稀有由於過漁。 國際間的買賣禁止 ( 引用 I, 自從 1.7.1975 以後; 公分 附錄 I).
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 300 cm TL 雄鱼/尚未辨别雌雄; (Ref. 30857); 235.0 cm SL (female); 最大体重: 350.0 kg (Ref. 43281); 最大年龄: 10 年 (Ref. 116372)
背棘 (总数) : 2; 背的软条 (总数) : 7 - 8; 臀鳍软条: 35; 脊椎骨: 48. Body without stripes; posterior nostril located near anterior nostril; 7 branched dorsal-fin rays; gill rakers rudimentary or absent; fins grey, never black (Ref. 12693). The center of the eye above the horizontal line through the mouth angle in juveniles; eye totally below the level of mouth angle in subadults and adults. The maxillary and mandibulary pairs of barbels well developed in juveniles; mandibulary barbels become rudimentary in subadults and adults (Ref. 9448). Gigantic size; oral teeth and gill rakers present in small juveniles, absent at about 30-50 cm SL; dorsal, pelvic and pectoral fins without filamentous extensions (Ref. 43281). Distinguished from other large catfish in the Mekong by its lack of teeth and the almost complete absence of barbels (Ref. 2686)
身体没有斑纹; 后鼻孔位于前鼻孔附近了; 7个分枝的背鳍鳍条; 鳃耙不发达的或不存在; 鳍灰色的, 从不黑色的.(参考文献 12693) 在稚鱼中经过嘴巴角的在水平联机面的眼的中心; 眼完全地在嘴角的水平之下在亚成鱼与成鱼中。 在稚鱼中的上颌骨与下颚对触须发展良好的; 下颚触须在亚成鱼与成鱼中变成不发达。 (参考文献 9448) 巨人般的大小; 口部的齿与鳃耙出现在小的稚鱼, 于大约 30-50 公分 SL 不存在; 背部的, 没有丝状的延长的腹鳍与胸鳍.(参考文献 43281)
Facultative air-breathing (Ref. 126274); A migratory species (Ref. 37772) which occurs in medium to large-sized rivers (Ref. 12975). Feeds on detritus and algae on the bottom (Ref. 58784); feeds only on vegetation in the river but takes other food in captivity; little is known on its general pattern of life and migratory journeys for spawning (Ref. 2686). Shows one of the fastest growth rates of any fish in the world, reaching 150 to 200 kg in 6 years (Ref. 12693). Cited in the Guinness Book of Records as largest freshwater fish (Ref. 6472). Marketed fresh (Ref. 12693). Maximum length of 300 cm needs confirmation. Threatened due to over harvesting and habitat loss (Ref. 58490).
一个回游的种 (参考文献 37772) 出现于中到大型的河中。 (参考文献 12975) 用它的缺乏齿与在湄公河中的其他大鲶鱼区分了，而且几乎完全者缺乏触须; 在河中只吃植物但是吃其他食物在繁殖场; 少为人知在它的一般生活型态与产卵回游的路程。 (参考文献 2686) 显示任何鱼的最快速增长率之一世界上, 在 6 年中达到 150 到 200 公斤.(参考文献 12693) 在金氏世界记录中引用如大的淡水鱼。 (参考文献 6472) 在市场上销售生鲜地了。 (参考文献 12693) 300 公分的最大长度需要证实。
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
亞洲: 湄公河流域的特有種在那裡它已經變得稀有由於過漁。 國際間的買賣禁止 ( 引用 I, 自從 1.7.1975 以後; 公分 附錄 I).
Roberts, T.R. and C. Vidthayanon, 1991. Systematic revision of the Asian catfish family Pangasiidae, with biological observations and descriptions of three new species. Proc. Acad. Nat. Sci. Philad. 143:97-144. (Ref. 7432)
人类利用
渔业: 商业性; 养殖: 实验的
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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=0.00776 (0.00386 - 0.01562), b=3.15 (2.97 - 3.33), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
营养阶层 (Ref.
69278): 2.3 ±0.17 se; based on food items.
Generation time: 12.9 ( na - na) years. Estimated as median ln(3)/K based on 1
growth studies.
回复力 (Ref.
120179): 低的, 最小族群倍增时间4.5 - 14 年 (Assuming tm=5-10).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (79 of 100).
