1. University of AberdeenOceanlab, Newburgh, Aberdeen AB41 6AA, UK
2. Leibniz-Institut für MeereswissenschaftenIfM-GEOMAR, Düsternbrooker Weg 20, 24105 Kiel, Germany
3. Marine Biology Research Division, Scripps Institution of OceanographyUCSD 9500 Gilman Drive, La Jolla, CA 92093-0202, USA
4. Institute of Marine ResearchFlødevigen Marine Research Station, 4817 His, Norway
5. British Antarctic Survey, Natural Environment Research CouncilHigh Cross, Madingley Road, Cambridge CB3 0ET, UK
6. Møre Research, Section of FisheriesPO Box 5075, 6021 Aalesund, Norway
7. FRS Marine Laboratory375 Victoria Road, Aberdeen AB11 9DB, UK