Effects of Vertical Water Mass Segregation on Bacterial Community Structure in the Beaufort Sea
The Arctic Ocean is one of the least well-studied marine microbial ecosystems. Its low-temperature and low-salinity conditions are expected to result in distinct bacterial communities, in comparison to lower latitude oceans. However, this is an ocean currently in flux, with climate change exerting p...
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ftpubmed:oai:pubmedcentral.nih.gov:6843845 2023-05-15T14:52:35+02:00 Effects of Vertical Water Mass Segregation on Bacterial Community Structure in the Beaufort Sea Fu, Yunyun Rivkin, Richard B. Lang, Andrew S. 2019-09-24 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6843845/ http://www.ncbi.nlm.nih.gov/pubmed/31554216 https://doi.org/10.3390/microorganisms7100385 en eng MDPI http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6843845/ http://www.ncbi.nlm.nih.gov/pubmed/31554216 http://dx.doi.org/10.3390/microorganisms7100385 © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). CC-BY Article Text 2019 ftpubmed https://doi.org/10.3390/microorganisms7100385 2019-12-01T01:20:47Z The Arctic Ocean is one of the least well-studied marine microbial ecosystems. Its low-temperature and low-salinity conditions are expected to result in distinct bacterial communities, in comparison to lower latitude oceans. However, this is an ocean currently in flux, with climate change exerting pronounced effects on sea-ice coverage and freshwater inputs. How such changes will affect this ecosystem are poorly constrained. In this study, we characterized the bacterial community compositions at different depths in both coastal, freshwater-influenced, and pelagic, sea-ice-covered locations in the Beaufort Sea in the western Canadian Arctic Ocean. The environmental factors controlling the bacterial community composition and diversity were investigated. Alphaproteobacteria dominated the bacterial communities in samples from all depths and stations. The Pelagibacterales and Rhodobacterales groups were the predominant taxonomic representatives within the Alphaproteobacteria. Bacterial communities in coastal and offshore samples differed significantly, and vertical water mass segregation was the controlling factor of community composition among the offshore samples, regardless of the taxonomic level considered. These data provide an important baseline view of the bacterial community in this ocean system that will be of value for future studies investigating possible changes in the Arctic Ocean in response to global change and/or anthropogenic disturbance. Text Arctic Arctic Ocean Beaufort Sea Climate change Sea ice PubMed Central (PMC) Arctic Arctic Ocean Microorganisms 7 10 385 |
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Article Fu, Yunyun Rivkin, Richard B. Lang, Andrew S. Effects of Vertical Water Mass Segregation on Bacterial Community Structure in the Beaufort Sea |
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description |
The Arctic Ocean is one of the least well-studied marine microbial ecosystems. Its low-temperature and low-salinity conditions are expected to result in distinct bacterial communities, in comparison to lower latitude oceans. However, this is an ocean currently in flux, with climate change exerting pronounced effects on sea-ice coverage and freshwater inputs. How such changes will affect this ecosystem are poorly constrained. In this study, we characterized the bacterial community compositions at different depths in both coastal, freshwater-influenced, and pelagic, sea-ice-covered locations in the Beaufort Sea in the western Canadian Arctic Ocean. The environmental factors controlling the bacterial community composition and diversity were investigated. Alphaproteobacteria dominated the bacterial communities in samples from all depths and stations. The Pelagibacterales and Rhodobacterales groups were the predominant taxonomic representatives within the Alphaproteobacteria. Bacterial communities in coastal and offshore samples differed significantly, and vertical water mass segregation was the controlling factor of community composition among the offshore samples, regardless of the taxonomic level considered. These data provide an important baseline view of the bacterial community in this ocean system that will be of value for future studies investigating possible changes in the Arctic Ocean in response to global change and/or anthropogenic disturbance. |
format |
Text |
author |
Fu, Yunyun Rivkin, Richard B. Lang, Andrew S. |
author_facet |
Fu, Yunyun Rivkin, Richard B. Lang, Andrew S. |
author_sort |
Fu, Yunyun |
title |
Effects of Vertical Water Mass Segregation on Bacterial Community Structure in the Beaufort Sea |
title_short |
Effects of Vertical Water Mass Segregation on Bacterial Community Structure in the Beaufort Sea |
title_full |
Effects of Vertical Water Mass Segregation on Bacterial Community Structure in the Beaufort Sea |
title_fullStr |
Effects of Vertical Water Mass Segregation on Bacterial Community Structure in the Beaufort Sea |
title_full_unstemmed |
Effects of Vertical Water Mass Segregation on Bacterial Community Structure in the Beaufort Sea |
title_sort |
effects of vertical water mass segregation on bacterial community structure in the beaufort sea |
publisher |
MDPI |
publishDate |
2019 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6843845/ http://www.ncbi.nlm.nih.gov/pubmed/31554216 https://doi.org/10.3390/microorganisms7100385 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean Beaufort Sea Climate change Sea ice |
genre_facet |
Arctic Arctic Ocean Beaufort Sea Climate change Sea ice |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6843845/ http://www.ncbi.nlm.nih.gov/pubmed/31554216 http://dx.doi.org/10.3390/microorganisms7100385 |
op_rights |
© 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
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CC-BY |
op_doi |
https://doi.org/10.3390/microorganisms7100385 |
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Microorganisms |
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385 |
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1766323813461524480 |