1. Centre for Offshore Oil, Gas and Energy Research, Fisheries and Oceans Canada, Bedford Institute of Oceanography, 1 Challenger Drive, Dartmouth, NS B2Y 4A2, Canada
2. Department of Biology, Dalhousie University, Life Science Centre, 1355 Oxford Street, Halifax, NS B3H 4R2, Canada
3. Energy, Mining and Environment Research Centre, National Research Council of Canada, 6100 Royalmount Avenue, Montreal, QC H4P 2R2, Canada