A Winter-to-Summer Transition of Bacterial and Archaeal Communities in Arctic Sea Ice.

ABSTRACT: The Arctic is warming 2-3 times faster than the global average, leading to a decrease in Arctic sea ice extent, thickness, and associated changes in sea ice structure. These changes impact sea ice habitat properties and the ice-associated ecosystems. Sea-ice algal blooms provide various algal-derived carbon sources for the bacterial and archaeal communities within the sea ice. Here, we detail the transition of these communities from winter through spring to early summer during the Norwegian young sea ICE (N-ICE2015) expedition. The winter community was dominated by the archaeon Candidatus Nitrosopumilus and bacteria belonging to the Gammaproteobacteria (Colwellia, Kangiellaceae, and Nitrinocolaceae), indicating that nitrogen-based metabolisms, particularl

SUBMITTER: Thiele S 

PROVIDER: S-EPMC9414599 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature