In both the Antarctic  and Arctic , the loss of ice impacts on the behaviour and foraging ability of marine mammals and birds . The retreat of sea ice in the Bering Sea  hotspot has been followed by a reorganisation of the seabed and fish communities, a northward shift in species, and greater species' biomass and richness . In the Eurasian Arctic , species richness has similarly been increasing , as has phytoplankton productivity . The distribution of krill has already contracted with ocean warming in the Southern Ocean  .
IPCC
Climate Change 2022: Impacts, Adaptation and Vulnerability
IPCC Report