分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Elasmobranchii
板鳃亚纲 (鲨鱼与 鱼) (sharks and rays) >
Myliobatiformes (Stingrays) >
Dasyatidae (Stingrays) > Dasyatinae
Etymology: More on authors: Roberts & Karnasuta.
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 居于水底的; 河川洄游 (Ref. 51243). 熱帶
Southeast Asia: endemic to the Mekong River (Cambodia and Thailand); introduced to Chao Phraya River (Thailand).
亞洲: 湄南河與湄公河流域。 可能地在婆羅洲。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 62.0 cm WD 雄鱼/尚未辨别雌雄; (Ref. 27732); 最大体重: 6.0 kg (Ref. 27732)
背棘 (总数): 0; 背的软条 (总数): 0; 臀棘 0; 臀鳍软条: 0. Distinguished from the other stingray species in the Mekong basin by the presence of a ventral and a dorsal skin folds on the tail and the bright orange color of the ventral surface of the disc. The middle disc is whitish with scattered large orange spots. The dorsal surface of the disc is brown (Ref. 27732). Disc longer than wide; tail longer than body (Ref. 12693). Lacking caudal fin; with long whip-like tail (Ref. 43281).
在湄公河流域中与另一个 种区分藉由有一个尾部腹面与背面的皮褶与体盘上鲜橘色的腹鳍。 中央的体盘是微白色的具有分散的大橘色的斑点。 体盘的背部表面是褐色。 (参考文献 27732) 体盘长度超过宽的; 尾部较长超过身体.(参考文献 12693) 缺乏尾鳍; 有长的鞭状尾部。 (参考文献 43281)
Obligate freshwater stingray that occurs over sandy substrate in large rivers. Feeds on bottom-dwelling invertebrates (Ref. 12693). Ovoviviparous (Ref. 50449). Marketed fresh (Ref. 32457).
使负义务在大河中发生在砂质底部的淡水的 。 吃底栖无脊椎动物。 (参考文献 12693) 卵胎生的.(参考文献 50449) 在市场上销售生鲜地了。 (参考文献 32457)
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
Exhibit ovoviparity (aplacental viviparity), with embryos feeding initially on yolk, then receiving additional nourishment from the mother by indirect absorption of uterine fluid enriched with mucus, fat or protein through specialised structures (Ref. 50449). Distinct pairing with embrace (Ref. 205).亞洲: 湄南河與湄公河流域。 可能地在婆羅洲。
Last, P.R. and L.J.V. Compagno, 1999. Dasyatididae. Stingrays. p. 1479-1505. In K.E. Carpenter and V.H. Niem (eds.) FAO species identification guide for fishery purposes. The living marine resources of the Western Central Pacific. Vol. 3. Batoid fishes, chimaeras and bony fishes part 1 (Elopidae to Linophrynidae). FAO, Rome. (Ref. 9840)
世界自然保护联盟红皮书 (Ref. 126983)
濒危 (EN) (A2bcd); Date assessed: 25 January 2021
人类利用
渔业: 低经济
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00575 (0.00235 - 0.01406), b=3.07 (2.87 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.5 ±0.37 se; based on food items.
回复力 (Ref.
120179): 非常低的, 最小族群倍增时间超过14 年 (Assuming Fec<10).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (90 of 100).
