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Potamotrygon falkneri Castex & Maciel, 1963

Largespot river stingray
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Image of Potamotrygon falkneri (Largespot river stingray)
Potamotrygon falkneri
Picture by Murch, A.


Brazil country information

Common names: Arraia, Raia, Raya
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments:
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/br.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: de Carvalho, M.R., N. Lovejoy and R.S. Rosa, 2003
National Database:

Common names from other countries

分类 / Names 俗名 | 同种异名 | Catalog of Fishes(, ) | 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

分布 国家 | FAO区域 | 生态系 | 标本纪录 | Point map | 简介 | Faunafri

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)

生物学特性     字汇 (例如 epibenthic)

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。

主要参考文献 Upload your references | 参考文献 | 合作者 : Carvalho, Marcelo | 合作者

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)

世界自然保护联盟红皮书 (Ref. 130435)

  数据缺失 (DD) ; Date assessed: 09 September 2004

CITES (Ref. 128078)


CMS (Ref. 116361)

Not Evaluated

对人类的威胁

  无害处的




人类利用

渔业: 没有兴趣; 水族馆: 展示水族馆
FAO(Publication : search) | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 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).