Environmental control of marine phytoplankton stoichiometry in the North Atlantic Ocean
The stoichiometric coupling of carbon to limiting nutrients in marine phytoplankton regulates the magnitude of biological carbon sequestration in the ocean. While clear links between plankton C:N ratios and environmental drivers have been identified, the nature and direction of these links, as well...
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ftpubmed:oai:pubmedcentral.nih.gov:8740720 2023-05-15T17:29:56+02:00 Environmental control of marine phytoplankton stoichiometry in the North Atlantic Ocean Sauterey, Boris Ward, Ben A. 2021-12-23 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8740720/ http://www.ncbi.nlm.nih.gov/pubmed/34949718 https://doi.org/10.1073/pnas.2114602118 en eng National Academy of Sciences http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8740720/ http://www.ncbi.nlm.nih.gov/pubmed/34949718 http://dx.doi.org/10.1073/pnas.2114602118 Copyright © 2021 the Author(s). Published by PNAS. https://creativecommons.org/licenses/by-nc-nd/4.0/This open access article is distributed under Creative Commons Attribution-NonCommercial-NoDerivatives License 4.0 (CC BY-NC-ND) (https://creativecommons.org/licenses/by-nc-nd/4.0/) . CC-BY-NC-ND Proc Natl Acad Sci U S A Biological Sciences Text 2021 ftpubmed https://doi.org/10.1073/pnas.2114602118 2022-01-30T01:26:32Z The stoichiometric coupling of carbon to limiting nutrients in marine phytoplankton regulates the magnitude of biological carbon sequestration in the ocean. While clear links between plankton C:N ratios and environmental drivers have been identified, the nature and direction of these links, as well as their underlying physiological and ecological controls, remain uncertain. We show, with a well-constrained mechanistic model of plankton ecophysiology, that while nitrogen availability and temperature emerge as the main drivers of phytoplankton C:N stoichiometry in the North Atlantic, the biological mechanisms involved vary depending on the spatiotemporal scale and region considered. We find that phytoplankton C:N stoichiometry is overall controlled by nitrogen availability below 40° N, predominantly driven by ecoevolutionary shifts in the functional composition of the phytoplankton communities, while phytoplankton stoichiometric plasticity in response to dropping temperatures and increased grazing pressure dominates at higher latitudes. Our findings highlight the potential of “organisms-to-ecosystems” modeling approaches based on mechanistic models of plankton biology accounting for physiology, ecology, and trait evolution to explore and explain complex observational data and ultimately improve the predictions of global ocean models. Text North Atlantic PubMed Central (PMC) Proceedings of the National Academy of Sciences 119 1 |
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Biological Sciences |
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Biological Sciences Sauterey, Boris Ward, Ben A. Environmental control of marine phytoplankton stoichiometry in the North Atlantic Ocean |
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Biological Sciences |
description |
The stoichiometric coupling of carbon to limiting nutrients in marine phytoplankton regulates the magnitude of biological carbon sequestration in the ocean. While clear links between plankton C:N ratios and environmental drivers have been identified, the nature and direction of these links, as well as their underlying physiological and ecological controls, remain uncertain. We show, with a well-constrained mechanistic model of plankton ecophysiology, that while nitrogen availability and temperature emerge as the main drivers of phytoplankton C:N stoichiometry in the North Atlantic, the biological mechanisms involved vary depending on the spatiotemporal scale and region considered. We find that phytoplankton C:N stoichiometry is overall controlled by nitrogen availability below 40° N, predominantly driven by ecoevolutionary shifts in the functional composition of the phytoplankton communities, while phytoplankton stoichiometric plasticity in response to dropping temperatures and increased grazing pressure dominates at higher latitudes. Our findings highlight the potential of “organisms-to-ecosystems” modeling approaches based on mechanistic models of plankton biology accounting for physiology, ecology, and trait evolution to explore and explain complex observational data and ultimately improve the predictions of global ocean models. |
format |
Text |
author |
Sauterey, Boris Ward, Ben A. |
author_facet |
Sauterey, Boris Ward, Ben A. |
author_sort |
Sauterey, Boris |
title |
Environmental control of marine phytoplankton stoichiometry in the North Atlantic Ocean |
title_short |
Environmental control of marine phytoplankton stoichiometry in the North Atlantic Ocean |
title_full |
Environmental control of marine phytoplankton stoichiometry in the North Atlantic Ocean |
title_fullStr |
Environmental control of marine phytoplankton stoichiometry in the North Atlantic Ocean |
title_full_unstemmed |
Environmental control of marine phytoplankton stoichiometry in the North Atlantic Ocean |
title_sort |
environmental control of marine phytoplankton stoichiometry in the north atlantic ocean |
publisher |
National Academy of Sciences |
publishDate |
2021 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8740720/ http://www.ncbi.nlm.nih.gov/pubmed/34949718 https://doi.org/10.1073/pnas.2114602118 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Proc Natl Acad Sci U S A |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8740720/ http://www.ncbi.nlm.nih.gov/pubmed/34949718 http://dx.doi.org/10.1073/pnas.2114602118 |
op_rights |
Copyright © 2021 the Author(s). Published by PNAS. https://creativecommons.org/licenses/by-nc-nd/4.0/This open access article is distributed under Creative Commons Attribution-NonCommercial-NoDerivatives License 4.0 (CC BY-NC-ND) (https://creativecommons.org/licenses/by-nc-nd/4.0/) . |
op_rightsnorm |
CC-BY-NC-ND |
op_doi |
https://doi.org/10.1073/pnas.2114602118 |
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Proceedings of the National Academy of Sciences |
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119 |
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1 |
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1766125174687531008 |