Pacific Geoscience Centre, Geological Survey of Canada 9860 W. Saanich Road, Saanichton, BC V8L4B2 Canada ; School of Earth and Ocean Sciences, University of Victoria, Victoria, BC V8L4B2 Canada
Department of Oceanography, Dalhousie University, Halifax, NS B3H4R2 Canada
Pacific Geoscience Centre, Geological Survey of Canada 9860 W. Saanich Road, Saanichton, BC V8L4B2 Canada