Mainstream dams as barriers to fish migration: International learning and implications for the Mekong
dams, barriers, migration, upstream
Journal or Book Title
Catch and Culture
Mainstream dams in the middle and lower reaches of the Lower Mekong Basin could affect more than 70 percent of the basin's catch. If such projects go ahead, experts agree that it would be better to build mainstream dams further upstream or relocate them to tributaries where they will have less impact on the dozens of fish species migrating over long distances.