1. Department of Fisheries and Oceans, Bedford Institute of Oceanography, Post Office Box 1006, Dartmouth, B2Y 4A2 Nova Scotia, Canada.
2. Dalhousie University, Halifax, B3H 4R2 Nova Scotia, Canada.
3. Plymouth Marine Laboratory, Prospect Place, PL1 3 Plymouth, UK.
4. Northeast Fisheries Science Center, National Marine Fisheries Service, 166 Water Street, Woods Hole, MA 02543-1026, USA.
5. Pêches et Océans Canada, Institut Maurice-Lamontagne, 850 Route de la Mer, Caisse Postale 1000, Mont-Joli, G5H 3Z4 Québec, Canada.
6. Department of Fisheries and Oceans, Northwest Atlantic Fisheries Centre, Post Office Box 5667, St. John’s, A1C 5X1 Newfoundland, Canada.
7. Marine Research Institute, Post Office Box 1390, Skúlagata 4, 121 Reykjavik, Iceland.
8. National Institute of Aquatic Resources, Technical University of Denmark, Post Office Box 101, DK-9850 Hirtshals, Denmark.
9. Norwegian College of Fisheries Science, University of Tromsø, N-9037 Tromsø, Norway.