Institution: | 1. Section of Fisheries Technology, Department of Marine Fisheries , Danish Institute for Fisheries Research (DIFRES) , Charlottenlund Slot, DK-2920 , Charlottenlund , Denmark E-mail: bst@difres.dk;2. Section of Fisheries Technology, Department of Marine Fisheries, Danish Institute for Fisheries Research (DIFRES), North Sea Centre , DK-9850 , Hirtshals , Denmark E-mail: kjs@difres.dk;3. Section of Fisheries Technology, Department of Marine Fisheries , Danish Institute for Fisheries Research (DIFRES) , Charlottenlund Slot, DK-2920 , Charlottenlund , Denmark E-mail: rn@difres.dk;4. Section of Fisheries Technology, Department of Marine Fisheries, Danish Institute for Fisheries Research (DIFRES), North Sea Centre , DK-9850 , Hirtshals , Denmark E-mail: bl@difres.dk |