AUTHOR=Aalto Nerea J. , Schweitzer Hannah D. , Krsmanovic Stina , Campbell Karley , Bernstein Hans C. TITLE=Diversity and Selection of Surface Marine Microbiomes in the Atlantic-Influenced Arctic JOURNAL=Frontiers in Microbiology VOLUME=13 YEAR=2022 URL=https://www.frontiersin.org/journals/microbiology/articles/10.3389/fmicb.2022.892634 DOI=10.3389/fmicb.2022.892634 ISSN=1664-302X ABSTRACT=
Arctic marine environments are experiencing rapid changes due to the polar amplification of global warming. These changes impact the habitat of the cold-adapted microbial communities, which underpin biogeochemical cycles and marine food webs. We comparatively investigated the differences in prokaryotic and microeukaryotic taxa between summer surface water microbiomes sampled along a latitudinal transect from the ice-free southern Barents Sea and into the sea-ice-covered Nansen Basin to disentangle the dominating community (ecological) selection processes driving phylogenetic diversity. The community structure and richness of each site-specific microbiome were assessed in relation to the physical and biogeochemical conditions of the environment. A strong homogeneous deterministic selection process was inferred across the entire sampling transect