Potamotrygonidae, Garman, 1877

Júnior, Horácio Ferreira Júlio, Tós, Claudenice Dei, Agostinho, Ângelo Antonio & Pavanelli, Carla Simone, 2009, A massive invasion of fish species after eliminating a natural barrier in the upper rio Paraná basin, Neotropical Ichthyology 7 (4), pp. 709-718 : 711

publication ID

https://doi.org/10.1590/S1679-62252009000400021

DOI

https://doi.org/10.5281/zenodo.15983891

persistent identifier

https://treatment.plazi.org/id/03B2F26F-FFDF-FFDC-FF7C-D98D02BCF902

treatment provided by

Carolina

scientific name

Potamotrygonidae
status

 

Potamotrygonidae View in CoL

The natural distribution of Potamotrygonidae in South America excluded the rio São Francisco basin, rivers that drain into the Atlantic Ocean from the Atlantic rainforest of northeastern and southeastern Brazil, the upper rio Paraná basin and rivers south of the La Plata River in Argentina ( Carvalho et al., 2003). In the rio Paraná basin, there are at least six rio Paraná potamotrygonids ( P. brachyura , P. castexi , P. falkneri , P. hystrix , P. motoro , and P. schuhmacheri ), all of them found just downstream from Sete Quedas Falls. After the impoundment, stingrays appeared in several kinds of environments in the upper rio Paraná basin ( Agostinho et al., 2004; Garrone-Neto et al., 2007; Garrone & Sazima, 2009). Fishers of the floodplain above the Itaipu Reservoir had never seen those fish before; thus, several accidents occurred during fishing, mostly when seining on sand beaches at night. Potamotrygon motoro and P. falkneri are currently very abundant in the upper Paraná.

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