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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ftmdpi:oai:mdpi.com:/2076-2607/7/10/385/ 2023-08-20T04:03:50+02:00 Effects of Vertical Water Mass Segregation on Bacterial Community Structure in the Beaufort Sea Yunyun Fu Richard B. Rivkin Andrew S. Lang agris 2019-09-24 application/pdf https://doi.org/10.3390/microorganisms7100385 EN eng Multidisciplinary Digital Publishing Institute Environmental Microbiology https://dx.doi.org/10.3390/microorganisms7100385 https://creativecommons.org/licenses/by/4.0/ Microorganisms; Volume 7; Issue 10; Pages: 385 Arctic Ocean Alphaproteobacteria Rhodobacterales Pelagibacterales stratification ice cover depth Text 2019 ftmdpi https://doi.org/10.3390/microorganisms7100385 2023-07-31T22:38:12Z 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 MDPI Open Access Publishing Arctic Arctic Ocean Microorganisms 7 10 385 |
institution |
Open Polar |
collection |
MDPI Open Access Publishing |
op_collection_id |
ftmdpi |
language |
English |
topic |
Arctic Ocean Alphaproteobacteria Rhodobacterales Pelagibacterales stratification ice cover depth |
spellingShingle |
Arctic Ocean Alphaproteobacteria Rhodobacterales Pelagibacterales stratification ice cover depth Yunyun Fu Richard B. Rivkin Andrew S. Lang Effects of Vertical Water Mass Segregation on Bacterial Community Structure in the Beaufort Sea |
topic_facet |
Arctic Ocean Alphaproteobacteria Rhodobacterales Pelagibacterales stratification ice cover depth |
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 |
Yunyun Fu Richard B. Rivkin Andrew S. Lang |
author_facet |
Yunyun Fu Richard B. Rivkin Andrew S. Lang |
author_sort |
Yunyun Fu |
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 |
Multidisciplinary Digital Publishing Institute |
publishDate |
2019 |
url |
https://doi.org/10.3390/microorganisms7100385 |
op_coverage |
agris |
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_source |
Microorganisms; Volume 7; Issue 10; Pages: 385 |
op_relation |
Environmental Microbiology https://dx.doi.org/10.3390/microorganisms7100385 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/microorganisms7100385 |
container_title |
Microorganisms |
container_volume |
7 |
container_issue |
10 |
container_start_page |
385 |
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1774714258933678080 |