1. Section for Marine Living Resources; National Institute of Aquatic Resources; Technical University of Denmark; Vejlsøvej 39 8600 Silkeborg Denmark
2. Greenland Climate Research Centre; Greenland Institute of Natural Resources; Kivioq 2, PO Box 570 3900 Nuuk Greenland
3. Hopkins Marine Station; Department of Biology; Stanford University; 120 Oceanview Blvd Pacific Grove CA 93950 USA
4. Greenland Institute of Natural Resources; Kivioq 2, PO Box 570 3900 Nuuk Greenland
5. Section for Marine Living Resources; National Institute of Aquatic Resources; Technical University of Denmark; Jaegersborg Allé 1 2920 Charlottenlund Denmark
6. Marine Research Institute; Skúlagata 4, 101 Reykjavık Iceland
7. Department of Bioscience; Aarhus University; Ole Worms Allé 1 8000 Aarhus Denmark