description Magdalena River Stingray Overview
The Magdalena River Stingray is a species of freshwater ray strictly endemic to the Magdalena River drainage basin in Colombia. As a member of the family Potamotrygonidae, commonly known as river stingrays, it has adapted to a purely freshwater environment. It holds the distinction of being the only stingray species native to this specific river system in northern South America. Like other freshwater stingrays, it features a venomous tail spine used for defense against predators in its natural habitat.
help Magdalena River Stingray FAQ
What is the scientific name of the Magdalena River Stingray?
The species is Potamotrygon magdalenae. It is a freshwater stingray in the family Potamotrygonidae and is also known in Colombia by names such as Raya del Magdalena.
Is the Magdalena River Stingray a marine ray?
No. Potamotrygon magdalenae is adapted to freshwater rivers, wetlands, and streams rather than seawater. It is recognized as the only freshwater stingray species endemic to Colombia.
Which Colombian river basins does the Magdalena River Stingray inhabit?
Research records it in the Magdalena-Cauca, San Jorge, Atrato, and Catatumbo basins. The species name refers to the Magdalena region, but its documented range is broader than the main Magdalena River alone.
What threatens the Magdalena River Stingray?
Reported pressures include agrochemical pollution, heavy metals, wetland drainage, and deforestation within its river basins. These threats affect the freshwater habitat on which Potamotrygon magdalenae depends.
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