Affiliation: | a Norwegian College of Fishery Science, University of Tromsø N-9000 Tromsø, Norway b DFO Science Advisory Secretariat, Department of Fisheries and Oceans 200 Kent Street, Ottawa, Ontario, Canada, K1A 0E6 c Netherlands Institute for Fishery Research PO Box 68, 1970 AB IJmuiden, The Netherlands d Centre for Environment, Fisheries, and Aquaculture Science Pakefield Road, Lowestoft, Suffolk NR33 0HT, England, UK e Danish Institute for Fishery Research Charlottenlund Slot, DK-2920 Charlottenlund, Denmark |