The massive predator—named for stories of fishers luring it with dog meat—has almost disappeared from Southeast Asia’s Mekong River. The last time I saw the fish in Sarawak was probably in the late 1970s when the Rejang river was largely remain untouched by logging activities.
Nowadays in Thailand, these rare tropical fish can only be found in man-made lakes where you would pay to catch it. Conservationists rather supportive of the idea as it could help save rare species from extinction.
The lakes allow anglers to catch and release fish under controlled conditions, for example, and serve as breeding centers for species that are vanishing in the wild.