Data_Sheet_1_Changing Biogeochemistry of the Southern Ocean and Its Ecosystem Implications.pdf
The Southern Ocean plays a critical role in regulating global climate as a major sink for atmospheric carbon dioxide (CO 2 ), and in global ocean biogeochemistry by supplying nutrients to the global thermocline, thereby influencing global primary production and carbon export. Biogeochemical processe...
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ftfrontimediafig:oai:figshare.com:article/12745991 2023-05-15T14:04:09+02:00 Data_Sheet_1_Changing Biogeochemistry of the Southern Ocean and Its Ecosystem Implications.pdf Sian F. Henley Emma L. Cavan Sarah E. Fawcett Rodrigo Kerr Thiago Monteiro Robert M. Sherrell Andrew R. Bowie Philip W. Boyd David K. A. Barnes Irene R. Schloss Tanya Marshall Raquel Flynn Shantelle Smith 2020-07-31T12:35:16Z https://doi.org/10.3389/fmars.2020.00581.s001 https://figshare.com/articles/dataset/Data_Sheet_1_Changing_Biogeochemistry_of_the_Southern_Ocean_and_Its_Ecosystem_Implications_pdf/12745991 unknown doi:10.3389/fmars.2020.00581.s001 https://figshare.com/articles/dataset/Data_Sheet_1_Changing_Biogeochemistry_of_the_Southern_Ocean_and_Its_Ecosystem_Implications_pdf/12745991 Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering Southern Ocean biogeochemistry primary production iron nutrients carbon ecosystem ocean acidification Dataset 2020 ftfrontimediafig https://doi.org/10.3389/fmars.2020.00581.s001 2020-08-05T22:55:32Z The Southern Ocean plays a critical role in regulating global climate as a major sink for atmospheric carbon dioxide (CO 2 ), 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 CO 2 exchange and ecosystem functioning within and beyond this vast and critically important ocean region. Dataset Antarc* Antarctic Antarctica Ocean acidification Southern Ocean Frontiers: Figshare Antarctic Southern Ocean |
institution |
Open Polar |
collection |
Frontiers: Figshare |
op_collection_id |
ftfrontimediafig |
language |
unknown |
topic |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering Southern Ocean biogeochemistry primary production iron nutrients carbon ecosystem ocean acidification |
spellingShingle |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering Southern Ocean biogeochemistry primary production iron nutrients carbon ecosystem ocean acidification Sian F. Henley Emma L. Cavan Sarah E. Fawcett Rodrigo Kerr Thiago Monteiro Robert M. Sherrell Andrew R. Bowie Philip W. Boyd David K. A. Barnes Irene R. Schloss Tanya Marshall Raquel Flynn Shantelle Smith Data_Sheet_1_Changing Biogeochemistry of the Southern Ocean and Its Ecosystem Implications.pdf |
topic_facet |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering Southern Ocean biogeochemistry primary production iron nutrients carbon ecosystem ocean acidification |
description |
The Southern Ocean plays a critical role in regulating global climate as a major sink for atmospheric carbon dioxide (CO 2 ), 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 CO 2 exchange and ecosystem functioning within and beyond this vast and critically important ocean region. |
format |
Dataset |
author |
Sian F. Henley Emma L. Cavan Sarah E. Fawcett Rodrigo Kerr Thiago Monteiro Robert M. Sherrell Andrew R. Bowie Philip W. Boyd David K. A. Barnes Irene R. Schloss Tanya Marshall Raquel Flynn Shantelle Smith |
author_facet |
Sian F. Henley Emma L. Cavan Sarah E. Fawcett Rodrigo Kerr Thiago Monteiro Robert M. Sherrell Andrew R. Bowie Philip W. Boyd David K. A. Barnes Irene R. Schloss Tanya Marshall Raquel Flynn Shantelle Smith |
author_sort |
Sian F. Henley |
title |
Data_Sheet_1_Changing Biogeochemistry of the Southern Ocean and Its Ecosystem Implications.pdf |
title_short |
Data_Sheet_1_Changing Biogeochemistry of the Southern Ocean and Its Ecosystem Implications.pdf |
title_full |
Data_Sheet_1_Changing Biogeochemistry of the Southern Ocean and Its Ecosystem Implications.pdf |
title_fullStr |
Data_Sheet_1_Changing Biogeochemistry of the Southern Ocean and Its Ecosystem Implications.pdf |
title_full_unstemmed |
Data_Sheet_1_Changing Biogeochemistry of the Southern Ocean and Its Ecosystem Implications.pdf |
title_sort |
data_sheet_1_changing biogeochemistry of the southern ocean and its ecosystem implications.pdf |
publishDate |
2020 |
url |
https://doi.org/10.3389/fmars.2020.00581.s001 https://figshare.com/articles/dataset/Data_Sheet_1_Changing_Biogeochemistry_of_the_Southern_Ocean_and_Its_Ecosystem_Implications_pdf/12745991 |
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 |
doi:10.3389/fmars.2020.00581.s001 https://figshare.com/articles/dataset/Data_Sheet_1_Changing_Biogeochemistry_of_the_Southern_Ocean_and_Its_Ecosystem_Implications_pdf/12745991 |
op_doi |
https://doi.org/10.3389/fmars.2020.00581.s001 |
_version_ |
1766275165215260672 |