Meet the 572-megawatt gorilla of the Chesapeake Bay

It was early morning on a patio just outside the Conowingo Dam, and Mike Martinek was looking at hundreds of juvenile eels that had been suctioned from the Susquehanna River into a giant freshwater pool. Martinek, a fisheries biologist for an environmental consulting firm, and a couple of colleagues were planning to truck the eels a couple of hours north into Pennsylvania, past Harrisburg, and dump them near spawning grounds upriver.