Institution: | (1) Department of Fisheries and Marine Biology, University of Bergen, Bergen High Technology Centre, N-5020 Bergen, Norway;(2) Department of Biology, University of Oslo, Blindern, P.O. Box 1069, N-0316 Oslo 3, Norway;(3) NFH, University of Tromsø, Dramsvn, 201B, N-9000 Tromsø, Norway |