The sight of two dolphins twisting playfully in the murky waters of the Mekong river elicits barely stifled squeals of delight from a boatload of eco-tourists. But a short distance upstream, river guard Pech Sokhan sighs as he holds up two large, tangled gill nets recently pulled from the murky…
WASHINGTON — Plans to build hydropower dams along small branches of southeast Asia’s longest river could have a devastating impact on millions of people who rely on the world’s largest inland fishery, scientists said Monday. Plenty of attention has focused on plans to develop 11 big dams along the main…