Despite the huge environmental and economic importance of migratory fish in the Mekong River, there’s been little empirical data documenting where and how fish travel within the Lower Mekong Basin.

SOUTH KINGSTOWN – A seagull, standing on a rock in the Saugatucket River, waddled closer to the seam of foamy water swirling by. There, in the crashing shallows below the Main Street Dam, the gull ...