1. Science Branch, Department of Fisheries and Oceans Canada, 80 East White Hills Road, St. John's, NL, Canada A1C 5X1
2. Bedford Institute of Oceanography, Fisheries and Oceans Canada, Dartmouth, Halifax, NS, Canada B2Y 4A2
3. NOAA Fisheries Service, Northeast Fisheries Science Center, 166 Water Street, Woods Hole, MA 02543, USA
4. Gulf Region, Fisheries and Oceans Canada, Centre for Science Advice, Moncton, NB, Canada E1C 9B6
5. United States Geological Survey, Leetown Science Center, 11649 Leetown Road, Kearneysville, WV 25430, USA
6. Département de Biologie, Institut de Biologie Intégrative et des Systèmes (IBIS), Université Laval, 1030 avenue de la Médecine, Québec, Québec, Canada G1V 0A6