[1
]CAGE - Centre for Arctic Gas Hydrate, Environment and Climate, Department of Geosciences;
UiT The Arctic University of Norway; Tromsø Norway
[2
]Akvaplan-niva, FRAM - High North Research Centre for Climate and the Environment;
Tromsø Norway
[3
]Division of Polar Programs; National Science Foundation; Arlington Virginia
[4
]Department of Biology; Bates College; Lewiston Maine