1. HGF-MPG Group for Deep Sea Ecology and Technology, Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung, 27570 Bremerhaven, Germany
2. Ocean Frontiers Institute, Dalhousie University, B3H 4R2 Nova Scotia, Canada
3. Sea Ice Physics, Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung, 27570 Bremerhaven, Germany
4. School of Geography, Earth and Environmental Science, University of Birmingham, B15 2TT Birmingham, U. K.
5. School of Physical and Chemical Sciences, University of Canterbury, 8041 Christchurch, New Zealand