分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Environment: milieu / climate zone / depth range / distribution range
生态学
海洋; 淡水; 半咸淡水 底中水层性; 河川洄游 (Ref. 51243). 熱帶
Asia.
亞洲。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 120 cm SL 雄鱼/尚未辨别雌雄; (Ref. 30857); 最大体重: 14.0 kg (Ref. 9497)
背棘 (总数): 1; 背的软条 (总数): 6-7; 臀棘 4; 臀鳍软条: 31 - 34. Body depth 4.5-5.0 times in SL (Ref. 43281). Dorsum sky blue; submarginal caudal-fin stripes absent; no humeral spot; vomerine teeth separate at midline, joined to palatine teeth on each side forming long crescentic patches; 18-22 gill rakers in first arch (Ref. 12693). Body dark blackish gray on top and sides, silver gray on abdomen and fins lightly yellow (Ref. 45563).
体高 4.5-5.0 标准体长比率.(参考文献 43281) 背面天蓝色; 靠近边缘的尾鳍斑纹不存在; 没有肩部的斑点; 在中线的犁骨齿分开, 在形成长的新月形的区块的两边上连到了颚齿; 在第一鳃弓中的 18-22个鳃耙.(参考文献 12693) 在顶端与侧边上的身体深色的黑色灰色, 银灰色在腹部与鳍上轻轻的黄色.(参考文献 45563)
Facultative air-breathing (Ref. 126274); Migrating but the direction is unknown. Dietary habits have not been studied. Taxonomy of this species may be problematic (Ref. 12693). Unique among pangasiid species in the Mekong in spending a major part of its life in marine coastal waters. Migrates into the Mekong River (but not into any other rivers) in order to breed (Ref. 12369). Regarded to be anadromous (Ref. 12369). It was hypothesized that at least two populations in the Mekong undertake migration (Ref. 37770). One population migrates during May-September from just south of Khone Falls upstream to spawning grounds along the mainstream Mekong all the way to Chiang Khong near the Lao-Thai-Myanmar border. The other population migrates downstream from around Stung Treng to unknown spawning grounds somewhere between Stung Treng and Kompong Cham in Cambodia during the spawning season between May and August. When water level starts to fall in October, the fish moves back to the main river to initiate an upstream dispersal migration, reaching the stretch just below the Khone Falls. Stays in deep pools within the mainstream during the dry season (Ref. 37770). Only two specimens of the fish were collected on April 5, 1956 and September 10, 1957 in Beihai City, Guangxi (Ref. 45563). Another on November 22, 1963 at Shanwei City of Guangdong Province (Ref. 45563).
回游，但是方向是未知的。 饮食的习惯没有被研究。 这种的分类学可能是麻烦的.(参考文献 12693) 独特的在 pangasiid 种之中在湄公河中在海洋的沿岸水域中度过主要生活期方面。 游进湄公河 (但是不进入任何其他的河之内) 为了繁殖内.(参考文献 12369) 被视为是溯河洄游产卵。 (参考文献 12369) 一般假定至少在湄公河的二个族群进行迁移.(参考文献 37770) 一个族群在五月-九月期间移动从正好向南方 Khone 瀑布溯河到产卵场沿着在 Lao-泰语-缅甸的边缘附近的主流湄公河一路到清孔县。 另一个族群移动下游从 Stung Treng 的周围对未知的产卵场某处在柬埔寨在 Stung Treng 与 Kompong 鞑靼之间在产卵季节的时候在五月与八月之间。 当水位开始在十月落下的时候，鱼游回主要的河开始被在 Khone 瀑布正下方达成伸展的向上游的散布迁移。 在乾季的时候停留在主流里面的深水池中。 (参考文献 37770) 鱼的只有二件标本 1956 年四月 5 日被收集与九月 10 日,1957 在广西北海市.(参考文献 45563) 十一月 22 日另一个在上,1963 在广东省的汕尾市.(参考文献 45563)
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
亞洲。
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
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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): 2.0 ±0.00 se; based on food items.
Fishing Vulnerability (Ref.
59153): Very high vulnerability (88 of 100).
Nutrients (Ref.
124155): Calcium = 21.4 [8.8, 59.4] mg/100g; Iron = 0.416 [0.152, 1.286] mg/100g; Protein = 14.6 [13.0, 16.4] %; Omega3 = 0.119 [0.059, 0.245] g/100g; Selenium = 93.9 [40.2, 228.6] μg/100g; VitaminA = 13.1 [2.6, 67.8] μg/100g; Zinc = 2.72 [0.96, 5.04] mg/100g (wet weight);
