Effects of phytoplankton community composition and productivity on sea surface pCO(2) variations in the Southern Ocean
The Southern Ocean is a vast net sink for atmospheric carbon dioxide (CO2), with marine phytoplankton playing a crucial role in CO2 fixation. We assessed how changes in the dominant phytoplankton community and net primary productivity (NPP) affected variations in the partial pressure of CO2 in surfa...
Published in: | Deep Sea Research Part I: Oceanographic Research Papers |
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Pergamon-elsevier Science Ltd
2020
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Online Access: | https://doi.org/10.1016/j.dsr.2020.103263 https://archimer.ifremer.fr/doc/00676/78836/81084.pdf https://archimer.ifremer.fr/doc/00676/78836/81085.pdf https://archimer.ifremer.fr/doc/00676/78836/81086.pdf https://archimer.ifremer.fr/doc/00676/78836/81087.pdf https://archimer.ifremer.fr/doc/00676/78836/81088.pdf https://archimer.ifremer.fr/doc/00676/78836/81089.pdf https://archimer.ifremer.fr/doc/00676/78836/81090.pdf https://archimer.ifremer.fr/doc/00676/78836/81091.docx |
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fttriple:oai:gotriple.eu:10670/1.ompb16 2023-05-15T13:32:54+02:00 Effects of phytoplankton community composition and productivity on sea surface pCO(2) variations in the Southern Ocean Takao, Shintaro Nakaoka, Shin-ichiro Hashihama, Fuminori Shimada, Keishi Yoshikawa-inoue, Hisayuki Hirawake, Toru Kanda, Jota Hashida, Gen Suzuki, Koji 2020-01-01 https://doi.org/10.1016/j.dsr.2020.103263 https://archimer.ifremer.fr/doc/00676/78836/81084.pdf https://archimer.ifremer.fr/doc/00676/78836/81085.pdf https://archimer.ifremer.fr/doc/00676/78836/81086.pdf https://archimer.ifremer.fr/doc/00676/78836/81087.pdf https://archimer.ifremer.fr/doc/00676/78836/81088.pdf https://archimer.ifremer.fr/doc/00676/78836/81089.pdf https://archimer.ifremer.fr/doc/00676/78836/81090.pdf https://archimer.ifremer.fr/doc/00676/78836/81091.docx en eng Pergamon-elsevier Science Ltd doi:10.1016/j.dsr.2020.103263 10670/1.ompb16 https://archimer.ifremer.fr/doc/00676/78836/81084.pdf https://archimer.ifremer.fr/doc/00676/78836/81085.pdf https://archimer.ifremer.fr/doc/00676/78836/81086.pdf https://archimer.ifremer.fr/doc/00676/78836/81087.pdf https://archimer.ifremer.fr/doc/00676/78836/81088.pdf https://archimer.ifremer.fr/doc/00676/78836/81089.pdf https://archimer.ifremer.fr/doc/00676/78836/81090.pdf https://archimer.ifremer.fr/doc/00676/78836/81091.docx Archimer, archive institutionnelle de l'Ifremer Deep-sea Research Part I-oceanographic Research Papers (0967-0637) (Pergamon-elsevier Science Ltd), 2020-06 , Vol. 160 , P. 103263 (12p.) envir geo Text https://vocabularies.coar-repositories.org/resource_types/c_18cf/ 2020 fttriple https://doi.org/10.1016/j.dsr.2020.103263 2023-01-22T17:00:55Z The Southern Ocean is a vast net sink for atmospheric carbon dioxide (CO2), with marine phytoplankton playing a crucial role in CO2 fixation. We assessed how changes in the dominant phytoplankton community and net primary productivity (NPP) affected variations in the partial pressure of CO2 in surface water (pCO(2)(sw)) in the Indian sector of the Southern Ocean during austral summer. pCO2sw was negatively correlated with total phytoplankton and diatom abundances, as estimated from pigment signatures, in the zone south of the Antarctic Circumpolar Current; however, pCO(2)(sw) was not correlated with haptophyte abundance. Additionally, a stronger correlation was found between pCO(2)(sw) and total phytoplankton NPP than between chlorophyll a concentration and pCO(2)(sw). We reconstructed pCO(2)(sw) at inter-annual scale using satellite data and assessed the inter-annual variability of air-sea CO2 flux. Over the period from 1997 to 2007, the integrated CO2 fluxes over the study region showed very large variations from a small source to a strong sink. Variations in the integrated CO2 fluxes were also correlated with changes in satellite-derived phytoplankton community in the Indian sector of the Southern Ocean and changes in the dominant phytoplankton community may control CO2 dynamics in the marginal ice zone. Text Antarc* Antarctic Southern Ocean Unknown Antarctic Austral Indian Southern Ocean The Antarctic Deep Sea Research Part I: Oceanographic Research Papers 160 103263 |
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envir geo Takao, Shintaro Nakaoka, Shin-ichiro Hashihama, Fuminori Shimada, Keishi Yoshikawa-inoue, Hisayuki Hirawake, Toru Kanda, Jota Hashida, Gen Suzuki, Koji Effects of phytoplankton community composition and productivity on sea surface pCO(2) variations in the Southern Ocean |
topic_facet |
envir geo |
description |
The Southern Ocean is a vast net sink for atmospheric carbon dioxide (CO2), with marine phytoplankton playing a crucial role in CO2 fixation. We assessed how changes in the dominant phytoplankton community and net primary productivity (NPP) affected variations in the partial pressure of CO2 in surface water (pCO(2)(sw)) in the Indian sector of the Southern Ocean during austral summer. pCO2sw was negatively correlated with total phytoplankton and diatom abundances, as estimated from pigment signatures, in the zone south of the Antarctic Circumpolar Current; however, pCO(2)(sw) was not correlated with haptophyte abundance. Additionally, a stronger correlation was found between pCO(2)(sw) and total phytoplankton NPP than between chlorophyll a concentration and pCO(2)(sw). We reconstructed pCO(2)(sw) at inter-annual scale using satellite data and assessed the inter-annual variability of air-sea CO2 flux. Over the period from 1997 to 2007, the integrated CO2 fluxes over the study region showed very large variations from a small source to a strong sink. Variations in the integrated CO2 fluxes were also correlated with changes in satellite-derived phytoplankton community in the Indian sector of the Southern Ocean and changes in the dominant phytoplankton community may control CO2 dynamics in the marginal ice zone. |
format |
Text |
author |
Takao, Shintaro Nakaoka, Shin-ichiro Hashihama, Fuminori Shimada, Keishi Yoshikawa-inoue, Hisayuki Hirawake, Toru Kanda, Jota Hashida, Gen Suzuki, Koji |
author_facet |
Takao, Shintaro Nakaoka, Shin-ichiro Hashihama, Fuminori Shimada, Keishi Yoshikawa-inoue, Hisayuki Hirawake, Toru Kanda, Jota Hashida, Gen Suzuki, Koji |
author_sort |
Takao, Shintaro |
title |
Effects of phytoplankton community composition and productivity on sea surface pCO(2) variations in the Southern Ocean |
title_short |
Effects of phytoplankton community composition and productivity on sea surface pCO(2) variations in the Southern Ocean |
title_full |
Effects of phytoplankton community composition and productivity on sea surface pCO(2) variations in the Southern Ocean |
title_fullStr |
Effects of phytoplankton community composition and productivity on sea surface pCO(2) variations in the Southern Ocean |
title_full_unstemmed |
Effects of phytoplankton community composition and productivity on sea surface pCO(2) variations in the Southern Ocean |
title_sort |
effects of phytoplankton community composition and productivity on sea surface pco(2) variations in the southern ocean |
publisher |
Pergamon-elsevier Science Ltd |
publishDate |
2020 |
url |
https://doi.org/10.1016/j.dsr.2020.103263 https://archimer.ifremer.fr/doc/00676/78836/81084.pdf https://archimer.ifremer.fr/doc/00676/78836/81085.pdf https://archimer.ifremer.fr/doc/00676/78836/81086.pdf https://archimer.ifremer.fr/doc/00676/78836/81087.pdf https://archimer.ifremer.fr/doc/00676/78836/81088.pdf https://archimer.ifremer.fr/doc/00676/78836/81089.pdf https://archimer.ifremer.fr/doc/00676/78836/81090.pdf https://archimer.ifremer.fr/doc/00676/78836/81091.docx |
geographic |
Antarctic Austral Indian Southern Ocean The Antarctic |
geographic_facet |
Antarctic Austral Indian Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Southern Ocean |
genre_facet |
Antarc* Antarctic Southern Ocean |
op_source |
Archimer, archive institutionnelle de l'Ifremer Deep-sea Research Part I-oceanographic Research Papers (0967-0637) (Pergamon-elsevier Science Ltd), 2020-06 , Vol. 160 , P. 103263 (12p.) |
op_relation |
doi:10.1016/j.dsr.2020.103263 10670/1.ompb16 https://archimer.ifremer.fr/doc/00676/78836/81084.pdf https://archimer.ifremer.fr/doc/00676/78836/81085.pdf https://archimer.ifremer.fr/doc/00676/78836/81086.pdf https://archimer.ifremer.fr/doc/00676/78836/81087.pdf https://archimer.ifremer.fr/doc/00676/78836/81088.pdf https://archimer.ifremer.fr/doc/00676/78836/81089.pdf https://archimer.ifremer.fr/doc/00676/78836/81090.pdf https://archimer.ifremer.fr/doc/00676/78836/81091.docx |
op_doi |
https://doi.org/10.1016/j.dsr.2020.103263 |
container_title |
Deep Sea Research Part I: Oceanographic Research Papers |
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160 |
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103263 |
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