1. Institut des Sciences de la Mer de Rimouski, Université du Québec à Rimouski, Rimouski, Québec G5L 3A1, Canada, Earth & Planetary Sciences, McGill University, Montreal, Québec H3A 2A7, Canada, Department of Biogeochemistry and Environmental Impact, Instituto Nacional de Investigação Agrária e das Pescas, 1449-006 Lisbon, Portugal, Terre et Environnement, Institut National de la Recherche Scientifique, Centre Eau, CP 7500, Sainte-Foy, Québec G1V 4C7, Canada, College of Marine Studies, University of...