Last month, a group of 68 local fishermen made a promise to then-senator Thaunjai Deetes, the World Conservation Union (IUCN) and the Wildlife Fund Thailand (WFT) to stop catching giant catfish. The fishermen put their seine nets, worth about 20,000 baht each, on sale to symbolise the end of pla buek hunting, which has provided a staple livelihood for Mekong villagers for decades.