Decline in plankton diversity and carbon flux with reduced sea ice extent along the Western Antarctic Peninsula
Abstract Since the middle of the past century, the Western Antarctic Peninsula has warmed rapidly with a significant loss of sea ice but the impacts on plankton biodiversity and carbon cycling remain an open question. Here, using a 5-year dataset of eukaryotic plankton DNA metabarcoding, we assess c...
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2021
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Online Access: | http://dx.doi.org/10.1038/s41467-021-25235-w https://www.nature.com/articles/s41467-021-25235-w.pdf https://www.nature.com/articles/s41467-021-25235-w |
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crspringernat:10.1038/s41467-021-25235-w 2023-05-15T14:11:24+02:00 Decline in plankton diversity and carbon flux with reduced sea ice extent along the Western Antarctic Peninsula Lin, Yajuan Moreno, Carly Marchetti, Adrian Ducklow, Hugh Schofield, Oscar Delage, Erwan Meredith, Michael Li, Zuchuan Eveillard, Damien Chaffron, Samuel Cassar, Nicolas National Science Foundation UK Natural Environment Research Council via the BAS Polar Oceans programme 2021 http://dx.doi.org/10.1038/s41467-021-25235-w https://www.nature.com/articles/s41467-021-25235-w.pdf https://www.nature.com/articles/s41467-021-25235-w en eng Springer Science and Business Media LLC https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 CC-BY Nature Communications volume 12, issue 1 ISSN 2041-1723 General Physics and Astronomy General Biochemistry, Genetics and Molecular Biology General Chemistry journal-article 2021 crspringernat https://doi.org/10.1038/s41467-021-25235-w 2022-01-04T16:09:30Z Abstract Since the middle of the past century, the Western Antarctic Peninsula has warmed rapidly with a significant loss of sea ice but the impacts on plankton biodiversity and carbon cycling remain an open question. Here, using a 5-year dataset of eukaryotic plankton DNA metabarcoding, we assess changes in biodiversity and net community production in this region. Our results show that sea-ice extent is a dominant factor influencing eukaryotic plankton community composition, biodiversity, and net community production. Species richness and evenness decline with an increase in sea surface temperature (SST). In regions with low SST and shallow mixed layers, the community was dominated by a diverse assemblage of diatoms and dinoflagellates. Conversely, less diverse plankton assemblages were observed in waters with higher SST and/or deep mixed layers when sea ice extent was lower. A genetic programming machine-learning model explained up to 80% of the net community production variability at the Western Antarctic Peninsula. Among the biological explanatory variables, the sea-ice environment associated plankton assemblage is the best predictor of net community production. We conclude that eukaryotic plankton diversity and carbon cycling at the Western Antarctic Peninsula are strongly linked to sea-ice conditions. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Sea ice Springer Nature (via Crossref) Antarctic Antarctic Peninsula Nature Communications 12 1 |
institution |
Open Polar |
collection |
Springer Nature (via Crossref) |
op_collection_id |
crspringernat |
language |
English |
topic |
General Physics and Astronomy General Biochemistry, Genetics and Molecular Biology General Chemistry |
spellingShingle |
General Physics and Astronomy General Biochemistry, Genetics and Molecular Biology General Chemistry Lin, Yajuan Moreno, Carly Marchetti, Adrian Ducklow, Hugh Schofield, Oscar Delage, Erwan Meredith, Michael Li, Zuchuan Eveillard, Damien Chaffron, Samuel Cassar, Nicolas Decline in plankton diversity and carbon flux with reduced sea ice extent along the Western Antarctic Peninsula |
topic_facet |
General Physics and Astronomy General Biochemistry, Genetics and Molecular Biology General Chemistry |
description |
Abstract Since the middle of the past century, the Western Antarctic Peninsula has warmed rapidly with a significant loss of sea ice but the impacts on plankton biodiversity and carbon cycling remain an open question. Here, using a 5-year dataset of eukaryotic plankton DNA metabarcoding, we assess changes in biodiversity and net community production in this region. Our results show that sea-ice extent is a dominant factor influencing eukaryotic plankton community composition, biodiversity, and net community production. Species richness and evenness decline with an increase in sea surface temperature (SST). In regions with low SST and shallow mixed layers, the community was dominated by a diverse assemblage of diatoms and dinoflagellates. Conversely, less diverse plankton assemblages were observed in waters with higher SST and/or deep mixed layers when sea ice extent was lower. A genetic programming machine-learning model explained up to 80% of the net community production variability at the Western Antarctic Peninsula. Among the biological explanatory variables, the sea-ice environment associated plankton assemblage is the best predictor of net community production. We conclude that eukaryotic plankton diversity and carbon cycling at the Western Antarctic Peninsula are strongly linked to sea-ice conditions. |
author2 |
National Science Foundation UK Natural Environment Research Council via the BAS Polar Oceans programme |
format |
Article in Journal/Newspaper |
author |
Lin, Yajuan Moreno, Carly Marchetti, Adrian Ducklow, Hugh Schofield, Oscar Delage, Erwan Meredith, Michael Li, Zuchuan Eveillard, Damien Chaffron, Samuel Cassar, Nicolas |
author_facet |
Lin, Yajuan Moreno, Carly Marchetti, Adrian Ducklow, Hugh Schofield, Oscar Delage, Erwan Meredith, Michael Li, Zuchuan Eveillard, Damien Chaffron, Samuel Cassar, Nicolas |
author_sort |
Lin, Yajuan |
title |
Decline in plankton diversity and carbon flux with reduced sea ice extent along the Western Antarctic Peninsula |
title_short |
Decline in plankton diversity and carbon flux with reduced sea ice extent along the Western Antarctic Peninsula |
title_full |
Decline in plankton diversity and carbon flux with reduced sea ice extent along the Western Antarctic Peninsula |
title_fullStr |
Decline in plankton diversity and carbon flux with reduced sea ice extent along the Western Antarctic Peninsula |
title_full_unstemmed |
Decline in plankton diversity and carbon flux with reduced sea ice extent along the Western Antarctic Peninsula |
title_sort |
decline in plankton diversity and carbon flux with reduced sea ice extent along the western antarctic peninsula |
publisher |
Springer Science and Business Media LLC |
publishDate |
2021 |
url |
http://dx.doi.org/10.1038/s41467-021-25235-w https://www.nature.com/articles/s41467-021-25235-w.pdf https://www.nature.com/articles/s41467-021-25235-w |
geographic |
Antarctic Antarctic Peninsula |
geographic_facet |
Antarctic Antarctic Peninsula |
genre |
Antarc* Antarctic Antarctic Peninsula Sea ice |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Sea ice |
op_source |
Nature Communications volume 12, issue 1 ISSN 2041-1723 |
op_rights |
https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1038/s41467-021-25235-w |
container_title |
Nature Communications |
container_volume |
12 |
container_issue |
1 |
_version_ |
1766283550463623168 |