1. Department of Earth and Environmental Science, Acadia University, Wolfville, Nova Scotia, B4P 2R6, Centre St-Laurent, Aquatic Ecosystem Protection Research Division, Water Science and Technology Directorate Science and Technology Branch, Environment Canada, 105 rue McGill, 7e étage (Youville) H2Y 2E7, Canada, National Institute for Fisheries and Sea Research, IPIMAR, Av. Brasilia, 1449006 Lisboa, Portugal, St. Lawrence River Institute of Environmental Sciences, Cornwall, Ontario, Canada, and Biology...