description Mekong stingray Overview
The Mekong stingray is the common name used for Hemitrygon laosensis, a freshwater stingray recorded from the Mekong basin in mainland Southeast Asia. It has a flattened disc-shaped body and a long tail with a venomous spine, and it lives on or near the riverbed. The species is distinct from the larger giant freshwater stingray, Urogymnus polylepis, which also occurs in the Mekong; the name therefore refers to a particular Mekong fish rather than to every stingray found in the river.
help Mekong stingray FAQ
What is the scientific name of the Mekong stingray?
The Mekong freshwater stingray was originally described as Dasyatis laosensis and is also called Hemitrygon laosensis. The species was formally described in 1987.
How is the Mekong stingray adapted to freshwater?
Unlike most stingrays associated with marine environments, it is specialized for large Southeast Asian rivers. Its freshwater lifestyle is tied to sandy river habitats and makes dams, fishing pressure, and pollution especially serious threats.
Where is the Mekong freshwater stingray found?
It is associated primarily with the Mekong basin in Laos and Thailand. Records also identify the Chao Phraya system, where the population may have been introduced.
Is the Mekong stingray endangered?
Yes. The Mekong freshwater stingray is listed as Endangered, with river development and fishing among the pressures affecting it.
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