1. Fisheries and Oceans Canada, Bedford Institute of Oceanography , P.O. Box 1006, Dartmouth, NS B2Y 4A2 , Canada
2. School of Marine Sciences, University of Maine , 5706 Aubert Hall, Orono, ME 04469-5706 , USA
3. NOAA, NMFS , Northeast Fisheries Science Center, 28 Tarzwell Drive, Narragansett, RI 02882 , USA
4. Fisheries and Oceans Canada , Northwest Atlantic Fisheries Centre, P.O. Box 5667, St. John's, NL A1C 5X1 , Canada
5. Fisheries and Oceans Canada, Institut Maurice-Lamontagne , P.O. Box 1000, Mont-Joli, QC G5H 3Z4 , Canada