An even greater danger to the fishery looms in northern Cambodia itself, on a tributary of the Mekong called the Tonle San, or Sesan River. The Sesan originates in Vietnam and meets the Mekong ...

as well as some of the Mekong River’s tributaries. “Still, observations remain rare, with no more than 20 observations of the species since the species description in 1991,” researchers said.

adults left in the Mekong River. Overfishing is the primary cause of the giant catfish’s decline, but damming of Mekong tributaries, destruction of spawning and breeding grounds, and siltation ...

“Last night, when I was patrolling the area, the water level suddenly dropped,” she tells ST during an interview in February 2024 on the Tonle Srepok river, a tributary of the Mekong.