Common names from other countries
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) >
Potamotrygonidae (River stingrays) > Potamotrygoninae
Etymology: Potamotrygon: Greek, potamos = river + Greek, trygon = a sting ray (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 底中水层性. 溫帶
South America: Paraná-Paraguay River basin, from Cuiabá and Piquiri rivers (among others) to the La Plata River.
南美洲: Parana-巴拉圭的河流域, 從 Cuiaba 與 Piquiri 河 (尤其是) 到 La Plata 河。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 60.0 cm WD 雄鱼/尚未辨别雌雄; (Ref. 36687)
After a gestation period of about 20 weeks two pups were born in a public aquarium (Ref. 57489).
在妊娠大约 20个星期的时期二个幼胎被出生于一个公众的水族馆之后.(参考文献 57489)
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
After a pregnancy of about 20 weeks two pups were born in the John-Shedd-Aquarium, New York.南美洲: Parana-巴拉圭的河流域, 從 Cuiaba 與 Piquiri 河 (尤其是) 到 La Plata 河。
Compagno, L.J.V., 1999. Checklist of living elasmobranchs. p. 471-498. In W.C. Hamlett (ed.) Sharks, skates, and rays: the biology of elasmobranch fishes. Johns Hopkins University Press, Maryland. (Ref. 35766)
人类利用
渔业: 没有兴趣; 水族馆: 展示水族馆
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特别资料
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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=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm Total Length, based on all LWR estimates for this body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
回复力 (Ref.
120179): 非常低的, 最小族群倍增时间超过14 年 (Fec=2).
Fishing Vulnerability (Ref.
59153): High vulnerability (58 of 100).
