Spatiotemporal dynamics of marine bacterial and archaeal communities in surface waters off the northern Antarctic Peninsula
Seasonal changes in taxonomic and functional diversity of microbial communities in polar regions are commonly observed, requiring strategies of microbes to adapt to the corresponding changes in environmental conditions. These natural fluctuations form the backdrop for changes induced by anthropogeni...
Published in: | Deep Sea Research Part II: Topical Studies in Oceanography |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Linköpings universitet, Tema Miljöförändring
2018
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Online Access: | http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-149885 https://doi.org/10.1016/j.dsr2.2017.12.017 |
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ftlinkoepinguniv:oai:DiVA.org:liu-149885 2023-05-15T13:53:33+02:00 Spatiotemporal dynamics of marine bacterial and archaeal communities in surface waters off the northern Antarctic Peninsula Signori, Camila N. Pellizari, Vivian H. Enrich Prast, Alex Sievert, Stefan M. 2018 application/pdf http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-149885 https://doi.org/10.1016/j.dsr2.2017.12.017 eng eng Linköpings universitet, Tema Miljöförändring Linköpings universitet, Filosofiska fakulteten Univ Sao Paulo, Brazil Univ Fed Rio De Janeiro UFRJ, Brazil WHOI, MA 02543 USA PERGAMON-ELSEVIER SCIENCE LTD Deep-sea research. Part II, Topical studies in oceanography, 0967-0645, 2018, 149, s. 150-160 http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-149885 doi:10.1016/j.dsr2.2017.12.017 ISI:000437037100014 info:eu-repo/semantics/embargoedAccess Microbial Oceanography Phytoplankton Interannual variability Seasonal changes Spatial changes Temperature Organic matter Ecology Ekologi Article in journal info:eu-repo/semantics/article text 2018 ftlinkoepinguniv https://doi.org/10.1016/j.dsr2.2017.12.017 2022-05-01T08:22:10Z Seasonal changes in taxonomic and functional diversity of microbial communities in polar regions are commonly observed, requiring strategies of microbes to adapt to the corresponding changes in environmental conditions. These natural fluctuations form the backdrop for changes induced by anthropogenic impacts. The main goal of this study was to assess the seasonal and temporal changes in bacterial and archaeal diversity and community structure off the northern Antarctic Peninsula over several seasons (spring, summer, autumn) from 2013 to 2015. Ten monitoring stations were selected across the Gerlache and Bransfield Straits and nearby Elephant Island, and archaeal and bacterial communities examined by amplicon sequencing of 16S rRNA genes. Alpha-diversity indices were higher in spring and correlated significantly with temperature. Spring was characterized by the presence of SAR11, and microbial communities remaining from winter, including representatives of Thaumarchaeota (Nimosopurnilus), Euryarchaeota, members of Oceanospirillales, SAR324. Summer and autumn were characterized by a high prevalence of Flavobacteria (NS5 marine group and Polaribacter), Alphaproizobacteria (Rhodobacterales and SAR11 Glade) and Gammaproteobacteria (Oceanospirillales/Balneatrix and Celivibrionales), generally known to be associated with organic matter degradation. Relatively higher abundance of phytoplankton groups occurred in spring, mainly characterized by the presence of the haptophyte Phaeocystis and the diatom Corethron, influencing the succession of heterotrophic bacterial communities. Microbial diversity and community structure varied significantly over time, but not over space, i.e., were similar between monitoring stations for the same time. In addition, the observed interannual variability in microbial community structure might be related to an increase in sea surface temperature. Environmental conditions related to seasonal variation, including temperature and most likely phytoplankton derived organic matter, appear to have triggered the observed shifts in microbial communities in the waters off the northern Antarctic Peninsula. Funding Agencies|Project INTERBIOTA (CNPq) [407889/2013-2]; INCT-MAR-COI (CNPq); CNPq; FAPERJ; Investment in Science Funds at WHOI; Scientific Committee on Antarctic Research (SCAR) Fellowship; Sao Paulo Research Foundation [FAPESP 2016/16183-5] Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Elephant Island SCAR Scientific Committee on Antarctic Research LIU - Linköping University: Publications (DiVA) Antarctic Antarctic Peninsula Elephant Island ENVELOPE(-55.184,-55.184,-61.085,-61.085) Gerlache ENVELOPE(99.033,99.033,-66.500,-66.500) Deep Sea Research Part II: Topical Studies in Oceanography 149 150 160 |
institution |
Open Polar |
collection |
LIU - Linköping University: Publications (DiVA) |
op_collection_id |
ftlinkoepinguniv |
language |
English |
topic |
Microbial Oceanography Phytoplankton Interannual variability Seasonal changes Spatial changes Temperature Organic matter Ecology Ekologi |
spellingShingle |
Microbial Oceanography Phytoplankton Interannual variability Seasonal changes Spatial changes Temperature Organic matter Ecology Ekologi Signori, Camila N. Pellizari, Vivian H. Enrich Prast, Alex Sievert, Stefan M. Spatiotemporal dynamics of marine bacterial and archaeal communities in surface waters off the northern Antarctic Peninsula |
topic_facet |
Microbial Oceanography Phytoplankton Interannual variability Seasonal changes Spatial changes Temperature Organic matter Ecology Ekologi |
description |
Seasonal changes in taxonomic and functional diversity of microbial communities in polar regions are commonly observed, requiring strategies of microbes to adapt to the corresponding changes in environmental conditions. These natural fluctuations form the backdrop for changes induced by anthropogenic impacts. The main goal of this study was to assess the seasonal and temporal changes in bacterial and archaeal diversity and community structure off the northern Antarctic Peninsula over several seasons (spring, summer, autumn) from 2013 to 2015. Ten monitoring stations were selected across the Gerlache and Bransfield Straits and nearby Elephant Island, and archaeal and bacterial communities examined by amplicon sequencing of 16S rRNA genes. Alpha-diversity indices were higher in spring and correlated significantly with temperature. Spring was characterized by the presence of SAR11, and microbial communities remaining from winter, including representatives of Thaumarchaeota (Nimosopurnilus), Euryarchaeota, members of Oceanospirillales, SAR324. Summer and autumn were characterized by a high prevalence of Flavobacteria (NS5 marine group and Polaribacter), Alphaproizobacteria (Rhodobacterales and SAR11 Glade) and Gammaproteobacteria (Oceanospirillales/Balneatrix and Celivibrionales), generally known to be associated with organic matter degradation. Relatively higher abundance of phytoplankton groups occurred in spring, mainly characterized by the presence of the haptophyte Phaeocystis and the diatom Corethron, influencing the succession of heterotrophic bacterial communities. Microbial diversity and community structure varied significantly over time, but not over space, i.e., were similar between monitoring stations for the same time. In addition, the observed interannual variability in microbial community structure might be related to an increase in sea surface temperature. Environmental conditions related to seasonal variation, including temperature and most likely phytoplankton derived organic matter, appear to have triggered the observed shifts in microbial communities in the waters off the northern Antarctic Peninsula. Funding Agencies|Project INTERBIOTA (CNPq) [407889/2013-2]; INCT-MAR-COI (CNPq); CNPq; FAPERJ; Investment in Science Funds at WHOI; Scientific Committee on Antarctic Research (SCAR) Fellowship; Sao Paulo Research Foundation [FAPESP 2016/16183-5] |
format |
Article in Journal/Newspaper |
author |
Signori, Camila N. Pellizari, Vivian H. Enrich Prast, Alex Sievert, Stefan M. |
author_facet |
Signori, Camila N. Pellizari, Vivian H. Enrich Prast, Alex Sievert, Stefan M. |
author_sort |
Signori, Camila N. |
title |
Spatiotemporal dynamics of marine bacterial and archaeal communities in surface waters off the northern Antarctic Peninsula |
title_short |
Spatiotemporal dynamics of marine bacterial and archaeal communities in surface waters off the northern Antarctic Peninsula |
title_full |
Spatiotemporal dynamics of marine bacterial and archaeal communities in surface waters off the northern Antarctic Peninsula |
title_fullStr |
Spatiotemporal dynamics of marine bacterial and archaeal communities in surface waters off the northern Antarctic Peninsula |
title_full_unstemmed |
Spatiotemporal dynamics of marine bacterial and archaeal communities in surface waters off the northern Antarctic Peninsula |
title_sort |
spatiotemporal dynamics of marine bacterial and archaeal communities in surface waters off the northern antarctic peninsula |
publisher |
Linköpings universitet, Tema Miljöförändring |
publishDate |
2018 |
url |
http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-149885 https://doi.org/10.1016/j.dsr2.2017.12.017 |
long_lat |
ENVELOPE(-55.184,-55.184,-61.085,-61.085) ENVELOPE(99.033,99.033,-66.500,-66.500) |
geographic |
Antarctic Antarctic Peninsula Elephant Island Gerlache |
geographic_facet |
Antarctic Antarctic Peninsula Elephant Island Gerlache |
genre |
Antarc* Antarctic Antarctic Peninsula Elephant Island SCAR Scientific Committee on Antarctic Research |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Elephant Island SCAR Scientific Committee on Antarctic Research |
op_relation |
Deep-sea research. Part II, Topical studies in oceanography, 0967-0645, 2018, 149, s. 150-160 http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-149885 doi:10.1016/j.dsr2.2017.12.017 ISI:000437037100014 |
op_rights |
info:eu-repo/semantics/embargoedAccess |
op_doi |
https://doi.org/10.1016/j.dsr2.2017.12.017 |
container_title |
Deep Sea Research Part II: Topical Studies in Oceanography |
container_volume |
149 |
container_start_page |
150 |
op_container_end_page |
160 |
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1766258731360714752 |