Changing Biogeochemistry of the Southern Ocean and Its Ecosystem Implications
The Southern Ocean plays a critical role in regulating global climate as a major sink for atmospheric carbon dioxide (CO2), and in global ocean biogeochemistry by supplying nutrients to the global thermocline, thereby influencing global primary production and carbon export. Biogeochemical processes...
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ftconicet:oai:ri.conicet.gov.ar:11336/128446 2023-10-09T21:46:03+02:00 Changing Biogeochemistry of the Southern Ocean and Its Ecosystem Implications Henley, Sian Frances Cavan, Emma Louise Fawcett, Sarah E. Kerr, Rodrigo Monteiro, Thiago Sherrell, Robert M. Bowie, Andrew Ross Boyd, Philip W. Barnes, David K. A. Schloss, Irene Ruth Marshall, Tanya Flynn, Raquel Smith, Shantelle application/pdf http://hdl.handle.net/11336/128446 eng eng Frontiers Media S.A. info:eu-repo/semantics/altIdentifier/doi/10.3389/fmars.2020.00581 info:eu-repo/semantics/altIdentifier/url/https://www.frontiersin.org/articles/10.3389/fmars.2020.00581/full http://hdl.handle.net/11336/128446 Henley, Sian Frances; Cavan, Emma Louise; Fawcett, Sarah E.; Kerr, Rodrigo; Monteiro, Thiago; et al.; Changing Biogeochemistry of the Southern Ocean and Its Ecosystem Implications; Frontiers Media S.A.; Frontiers In Marine Science; 7; 7-2020; 1-31 2296-7745 CONICET Digital CONICET info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ BIOGEOCHEMISTRY CARBON ECOSYSTEM IRON NUTRIENTS OCEAN ACIDIFICATION PRIMARY PRODUCTION SOUTHERN OCEAN https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion ftconicet https://doi.org/10.3389/fmars.2020.00581 2023-09-24T19:16:15Z The Southern Ocean plays a critical role in regulating global climate as a major sink for atmospheric carbon dioxide (CO2), and in global ocean biogeochemistry by supplying nutrients to the global thermocline, thereby influencing global primary production and carbon export. Biogeochemical processes within the Southern Ocean regulate regional primary production and biological carbon uptake, primarily through iron supply, and support ecosystem functioning over a range of spatial and temporal scales. Here, we assimilate existing knowledge and present new data to examine the biogeochemical cycles of iron, carbon and major nutrients, their key drivers and their responses to, and roles in, contemporary climate and environmental change. Projected increases in iron supply, coupled with increases in light availability to phytoplankton through increased near-surface stratification and longer ice-free periods, are very likely to increase primary production and carbon export around Antarctica. Biological carbon uptake is likely to increase for the Southern Ocean as a whole, whilst there is greater uncertainty around projections of primary production in the Sub-Antarctic and basin-wide changes in phytoplankton species composition, as well as their biogeochemical consequences. Phytoplankton, zooplankton, higher trophic level organisms and microbial communities are strongly influenced by Southern Ocean biogeochemistry, in particular through nutrient supply and ocean acidification. In turn, these organisms exert important controls on biogeochemistry through carbon storage and export, nutrient recycling and redistribution, and benthic-pelagic coupling. The key processes described in this paper are summarised in the Graphical Abstract. Climate-mediated changes in Southern Ocean biogeochemistry over the coming decades are very likely to impact primary production, sea-air CO2 exchange and ecosystem functioning within and beyond this vast and critically important ocean region. Fil: Henley, Sian Frances. University of Edinburgh; ... Article in Journal/Newspaper Antarc* Antarctic Antarctica Ocean acidification Southern Ocean CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Antarctic Southern Ocean Frontiers in Marine Science 7 |
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Open Polar |
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CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
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ftconicet |
language |
English |
topic |
BIOGEOCHEMISTRY CARBON ECOSYSTEM IRON NUTRIENTS OCEAN ACIDIFICATION PRIMARY PRODUCTION SOUTHERN OCEAN https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
spellingShingle |
BIOGEOCHEMISTRY CARBON ECOSYSTEM IRON NUTRIENTS OCEAN ACIDIFICATION PRIMARY PRODUCTION SOUTHERN OCEAN https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 Henley, Sian Frances Cavan, Emma Louise Fawcett, Sarah E. Kerr, Rodrigo Monteiro, Thiago Sherrell, Robert M. Bowie, Andrew Ross Boyd, Philip W. Barnes, David K. A. Schloss, Irene Ruth Marshall, Tanya Flynn, Raquel Smith, Shantelle Changing Biogeochemistry of the Southern Ocean and Its Ecosystem Implications |
topic_facet |
BIOGEOCHEMISTRY CARBON ECOSYSTEM IRON NUTRIENTS OCEAN ACIDIFICATION PRIMARY PRODUCTION SOUTHERN OCEAN https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
description |
The Southern Ocean plays a critical role in regulating global climate as a major sink for atmospheric carbon dioxide (CO2), and in global ocean biogeochemistry by supplying nutrients to the global thermocline, thereby influencing global primary production and carbon export. Biogeochemical processes within the Southern Ocean regulate regional primary production and biological carbon uptake, primarily through iron supply, and support ecosystem functioning over a range of spatial and temporal scales. Here, we assimilate existing knowledge and present new data to examine the biogeochemical cycles of iron, carbon and major nutrients, their key drivers and their responses to, and roles in, contemporary climate and environmental change. Projected increases in iron supply, coupled with increases in light availability to phytoplankton through increased near-surface stratification and longer ice-free periods, are very likely to increase primary production and carbon export around Antarctica. Biological carbon uptake is likely to increase for the Southern Ocean as a whole, whilst there is greater uncertainty around projections of primary production in the Sub-Antarctic and basin-wide changes in phytoplankton species composition, as well as their biogeochemical consequences. Phytoplankton, zooplankton, higher trophic level organisms and microbial communities are strongly influenced by Southern Ocean biogeochemistry, in particular through nutrient supply and ocean acidification. In turn, these organisms exert important controls on biogeochemistry through carbon storage and export, nutrient recycling and redistribution, and benthic-pelagic coupling. The key processes described in this paper are summarised in the Graphical Abstract. Climate-mediated changes in Southern Ocean biogeochemistry over the coming decades are very likely to impact primary production, sea-air CO2 exchange and ecosystem functioning within and beyond this vast and critically important ocean region. Fil: Henley, Sian Frances. University of Edinburgh; ... |
format |
Article in Journal/Newspaper |
author |
Henley, Sian Frances Cavan, Emma Louise Fawcett, Sarah E. Kerr, Rodrigo Monteiro, Thiago Sherrell, Robert M. Bowie, Andrew Ross Boyd, Philip W. Barnes, David K. A. Schloss, Irene Ruth Marshall, Tanya Flynn, Raquel Smith, Shantelle |
author_facet |
Henley, Sian Frances Cavan, Emma Louise Fawcett, Sarah E. Kerr, Rodrigo Monteiro, Thiago Sherrell, Robert M. Bowie, Andrew Ross Boyd, Philip W. Barnes, David K. A. Schloss, Irene Ruth Marshall, Tanya Flynn, Raquel Smith, Shantelle |
author_sort |
Henley, Sian Frances |
title |
Changing Biogeochemistry of the Southern Ocean and Its Ecosystem Implications |
title_short |
Changing Biogeochemistry of the Southern Ocean and Its Ecosystem Implications |
title_full |
Changing Biogeochemistry of the Southern Ocean and Its Ecosystem Implications |
title_fullStr |
Changing Biogeochemistry of the Southern Ocean and Its Ecosystem Implications |
title_full_unstemmed |
Changing Biogeochemistry of the Southern Ocean and Its Ecosystem Implications |
title_sort |
changing biogeochemistry of the southern ocean and its ecosystem implications |
publisher |
Frontiers Media S.A. |
url |
http://hdl.handle.net/11336/128446 |
geographic |
Antarctic Southern Ocean |
geographic_facet |
Antarctic Southern Ocean |
genre |
Antarc* Antarctic Antarctica Ocean acidification Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctica Ocean acidification Southern Ocean |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.3389/fmars.2020.00581 info:eu-repo/semantics/altIdentifier/url/https://www.frontiersin.org/articles/10.3389/fmars.2020.00581/full http://hdl.handle.net/11336/128446 Henley, Sian Frances; Cavan, Emma Louise; Fawcett, Sarah E.; Kerr, Rodrigo; Monteiro, Thiago; et al.; Changing Biogeochemistry of the Southern Ocean and Its Ecosystem Implications; Frontiers Media S.A.; Frontiers In Marine Science; 7; 7-2020; 1-31 2296-7745 CONICET Digital CONICET |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
op_doi |
https://doi.org/10.3389/fmars.2020.00581 |
container_title |
Frontiers in Marine Science |
container_volume |
7 |
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1779321707079663616 |