1. School of Ocean and Earth Science, National Oceanography Centre Southampton, University of Southampton, Waterfront Campus, European Way, Southampton SO14 3ZH, UK
2. ArcticNet, Québec Océan, Takuvik, Département de biologie, Université Laval, Québec, Canada
3. Akvaplan-niva, Fram Center for Climate and the Environment, 9296 Tromsø, Norway
4. University Centre in Svalbard, Arctic Biology, 9171 Longyearbyen, Norway
5. School of Earth and Environment, University of Leeds, Leeds LS2 9JT, UK