An ocean pollution researcher and at least one First Nation are raising concerns about the Vancouver Fraser Port Authority's (VFPA) plan to dredge the Burrard Inlet. Dredging is when the bed of a body of water is dug out to make way for ships or for construction or cleaning purposes.Ocean researcher Juan José Alava told CBC's On The Coast that periodic dredging is common for navigation maintenance in the Inlet. However, he says he was surprised to hear that the port is planning to dredge for the