Seasonality of the bacterial and archaeal community composition of the Northern Barents Sea
The Barents Sea is a transition zone between the Atlantic and the Arctic Ocean. The ecosystem in this region is highly variable, and a seasonal baseline of biological factors is needed to monitor the effects of global warming. In this study, we report the results from the investigations of the bacte...
Published in: | Frontiers in Microbiology |
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Online Access: | http://dx.doi.org/10.3389/fmicb.2023.1213718 https://www.frontiersin.org/articles/10.3389/fmicb.2023.1213718/full |
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crfrontiers:10.3389/fmicb.2023.1213718 2024-10-13T14:04:48+00:00 Seasonality of the bacterial and archaeal community composition of the Northern Barents Sea Thiele, Stefan Vader, Anna Thomson, Stuart Saubrekka, Karoline Petelenz, Elzbieta Müller, Oliver Bratbak, Gunnar Øvreås, Lise Norges Forskningsråd 2023 http://dx.doi.org/10.3389/fmicb.2023.1213718 https://www.frontiersin.org/articles/10.3389/fmicb.2023.1213718/full unknown Frontiers Media SA https://creativecommons.org/licenses/by/4.0/ Frontiers in Microbiology volume 14 ISSN 1664-302X journal-article 2023 crfrontiers https://doi.org/10.3389/fmicb.2023.1213718 2024-09-17T04:11:38Z The Barents Sea is a transition zone between the Atlantic and the Arctic Ocean. The ecosystem in this region is highly variable, and a seasonal baseline of biological factors is needed to monitor the effects of global warming. In this study, we report the results from the investigations of the bacterial and archaeal community in late winter, spring, summer, and early winter along a transect through the northern Barents Sea into the Arctic Ocean east of Svalbard using 16S rRNA metabarcoding. Winter samples were dominated by members of the SAR11 clade and a community of nitrifiers, namely Cand . Nitrosopumilus and LS-NOB ( Nitrospinia ), suggest a prevalence of chemoautotrophic metabolisms. During spring and summer, members of the Gammaproteobacteria (mainly members of the SAR92 and OM60(NOR5) clades, Nitrincolaceae ) and Bacteroidia (mainly Polaribacter, Formosa , and members of the NS9 marine group), which followed a succession based on their utilization of different phytoplankton-derived carbon sources, prevailed. Our results indicate that Arctic marine bacterial and archaeal communities switch from carbon cycling in spring and summer to nitrogen cycling in winter and provide a seasonal baseline to study the changes in these processes in response to the effects of climate change. Article in Journal/Newspaper Arctic Arctic Ocean Barents Sea Climate change Global warming Phytoplankton Svalbard Frontiers (Publisher) Arctic Arctic Ocean Barents Sea Svalbard Frontiers in Microbiology 14 |
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The Barents Sea is a transition zone between the Atlantic and the Arctic Ocean. The ecosystem in this region is highly variable, and a seasonal baseline of biological factors is needed to monitor the effects of global warming. In this study, we report the results from the investigations of the bacterial and archaeal community in late winter, spring, summer, and early winter along a transect through the northern Barents Sea into the Arctic Ocean east of Svalbard using 16S rRNA metabarcoding. Winter samples were dominated by members of the SAR11 clade and a community of nitrifiers, namely Cand . Nitrosopumilus and LS-NOB ( Nitrospinia ), suggest a prevalence of chemoautotrophic metabolisms. During spring and summer, members of the Gammaproteobacteria (mainly members of the SAR92 and OM60(NOR5) clades, Nitrincolaceae ) and Bacteroidia (mainly Polaribacter, Formosa , and members of the NS9 marine group), which followed a succession based on their utilization of different phytoplankton-derived carbon sources, prevailed. Our results indicate that Arctic marine bacterial and archaeal communities switch from carbon cycling in spring and summer to nitrogen cycling in winter and provide a seasonal baseline to study the changes in these processes in response to the effects of climate change. |
author2 |
Norges Forskningsråd |
format |
Article in Journal/Newspaper |
author |
Thiele, Stefan Vader, Anna Thomson, Stuart Saubrekka, Karoline Petelenz, Elzbieta Müller, Oliver Bratbak, Gunnar Øvreås, Lise |
spellingShingle |
Thiele, Stefan Vader, Anna Thomson, Stuart Saubrekka, Karoline Petelenz, Elzbieta Müller, Oliver Bratbak, Gunnar Øvreås, Lise Seasonality of the bacterial and archaeal community composition of the Northern Barents Sea |
author_facet |
Thiele, Stefan Vader, Anna Thomson, Stuart Saubrekka, Karoline Petelenz, Elzbieta Müller, Oliver Bratbak, Gunnar Øvreås, Lise |
author_sort |
Thiele, Stefan |
title |
Seasonality of the bacterial and archaeal community composition of the Northern Barents Sea |
title_short |
Seasonality of the bacterial and archaeal community composition of the Northern Barents Sea |
title_full |
Seasonality of the bacterial and archaeal community composition of the Northern Barents Sea |
title_fullStr |
Seasonality of the bacterial and archaeal community composition of the Northern Barents Sea |
title_full_unstemmed |
Seasonality of the bacterial and archaeal community composition of the Northern Barents Sea |
title_sort |
seasonality of the bacterial and archaeal community composition of the northern barents sea |
publisher |
Frontiers Media SA |
publishDate |
2023 |
url |
http://dx.doi.org/10.3389/fmicb.2023.1213718 https://www.frontiersin.org/articles/10.3389/fmicb.2023.1213718/full |
geographic |
Arctic Arctic Ocean Barents Sea Svalbard |
geographic_facet |
Arctic Arctic Ocean Barents Sea Svalbard |
genre |
Arctic Arctic Ocean Barents Sea Climate change Global warming Phytoplankton Svalbard |
genre_facet |
Arctic Arctic Ocean Barents Sea Climate change Global warming Phytoplankton Svalbard |
op_source |
Frontiers in Microbiology volume 14 ISSN 1664-302X |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3389/fmicb.2023.1213718 |
container_title |
Frontiers in Microbiology |
container_volume |
14 |
_version_ |
1812810459972108288 |