The biogeochemistry of zinc and cadmium in the Amundsen Sea, coastal Antarctica
The trace metals zinc (Zn) and cadmium (Cd) are both involved in the metabolic processes of marine phytoplankton, and as such, both metals play important roles in ocean biogeochemical cycles. In Antarctica, the Amundsen Sea (AS) experiences rapid ice shelf melting, and the Amundsen Sea polynya (ASP)...
Published in: | Marine Chemistry |
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Main Authors: | , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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2023
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Online Access: | https://hdl.handle.net/11370/c0350fa8-1721-4120-afd8-c9618b8a01ea https://research.rug.nl/en/publications/c0350fa8-1721-4120-afd8-c9618b8a01ea https://doi.org/10.1016/j.marchem.2023.104223 https://pure.rug.nl/ws/files/612150670/1_s2.0_S0304420323000191_main.pdf http://www.scopus.com/inward/record.url?scp=85147698189&partnerID=8YFLogxK |
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ftunigroningenpu:oai:pure.rug.nl:publications/c0350fa8-1721-4120-afd8-c9618b8a01ea 2024-09-15T17:39:01+00:00 The biogeochemistry of zinc and cadmium in the Amundsen Sea, coastal Antarctica Tian, Hung An van Manen, Mathijs Wille, Flora Jung, Jinyoung Lee, Sang Hoon Kim, Tae Wan Aoki, Shigeru Eich, Charlotte Brussaard, Corina P.D. Reichart, Gert Jan Conway, Tim M. Middag, Rob 2023-02-20 application/pdf https://hdl.handle.net/11370/c0350fa8-1721-4120-afd8-c9618b8a01ea https://research.rug.nl/en/publications/c0350fa8-1721-4120-afd8-c9618b8a01ea https://doi.org/10.1016/j.marchem.2023.104223 https://pure.rug.nl/ws/files/612150670/1_s2.0_S0304420323000191_main.pdf http://www.scopus.com/inward/record.url?scp=85147698189&partnerID=8YFLogxK eng eng https://research.rug.nl/en/publications/c0350fa8-1721-4120-afd8-c9618b8a01ea info:eu-repo/semantics/openAccess Tian , H A , van Manen , M , Wille , F , Jung , J , Lee , S H , Kim , T W , Aoki , S , Eich , C , Brussaard , C P D , Reichart , G J , Conway , T M & Middag , R 2023 , ' The biogeochemistry of zinc and cadmium in the Amundsen Sea, coastal Antarctica ' , Marine Chemistry , vol. 249 , 104223 . https://doi.org/10.1016/j.marchem.2023.104223 Amundsen Sea Polynya Biogeochemistry GEOTRACES Trace metals article 2023 ftunigroningenpu https://doi.org/10.1016/j.marchem.2023.104223 2024-07-01T14:49:25Z The trace metals zinc (Zn) and cadmium (Cd) are both involved in the metabolic processes of marine phytoplankton, and as such, both metals play important roles in ocean biogeochemical cycles. In Antarctica, the Amundsen Sea (AS) experiences rapid ice shelf melting, and the Amundsen Sea polynya (ASP) hosts seasonal phytoplankton blooms in austral summer, with important implications for atmospheric carbon dioxide drawdown. However, the effects of ice melting and phytoplankton blooms on the biogeochemistry and distributions of Zn and Cd in the ASP remain poorly studied. Here, we present the first combined dataset of dissolved and particulate Zn and Cd in the AS (including the inflow and outflow to and from the Dotson and Getz ice shelves) collected as part of the GEOTRACES process study GPpr12. We use this dataset to assess the sources of both elements to the AS region and characterize the particle composition in the ASP. We find that the main source of both dissolved Zn and Cd in the AS is Circumpolar Deep Water (CDW), with an additional small flux of both metals from shelf sediments. By contrast, aerosol deposition, ice shelf melt, and sea ice melt are all deemed insignificant sources for either Zn or Cd in the AS. Labile particulate Zn and Cd dominate the total particulate pool in the surface layer, indicating that biological uptake is a predominant process for the cycling of both metals in the ASP, whereas sediment resuspension and ice shelf melt do not supply a significant amount of either particulate Zn or Cd. Additionally, we use two commonly used approaches to estimate biogenic and lithogenic particulate concentrations. We find high biogenic particulate concentrations at the surface, decreasing with depth, indicating remineralization plays an important role in the cycling of particulate metals. In contrast, lithogenic particulate metal concentrations remain low throughout the water column. We also show that the estimated uptake ratios of Zn and Cd relative to phosphate in the surface layer are lower than ... Article in Journal/Newspaper Amundsen Sea Antarc* Antarctica Ice Shelf Ice Shelves Sea ice University of Groningen research database Marine Chemistry 249 104223 |
institution |
Open Polar |
collection |
University of Groningen research database |
op_collection_id |
ftunigroningenpu |
language |
English |
topic |
Amundsen Sea Polynya Biogeochemistry GEOTRACES Trace metals |
spellingShingle |
Amundsen Sea Polynya Biogeochemistry GEOTRACES Trace metals Tian, Hung An van Manen, Mathijs Wille, Flora Jung, Jinyoung Lee, Sang Hoon Kim, Tae Wan Aoki, Shigeru Eich, Charlotte Brussaard, Corina P.D. Reichart, Gert Jan Conway, Tim M. Middag, Rob The biogeochemistry of zinc and cadmium in the Amundsen Sea, coastal Antarctica |
topic_facet |
Amundsen Sea Polynya Biogeochemistry GEOTRACES Trace metals |
description |
The trace metals zinc (Zn) and cadmium (Cd) are both involved in the metabolic processes of marine phytoplankton, and as such, both metals play important roles in ocean biogeochemical cycles. In Antarctica, the Amundsen Sea (AS) experiences rapid ice shelf melting, and the Amundsen Sea polynya (ASP) hosts seasonal phytoplankton blooms in austral summer, with important implications for atmospheric carbon dioxide drawdown. However, the effects of ice melting and phytoplankton blooms on the biogeochemistry and distributions of Zn and Cd in the ASP remain poorly studied. Here, we present the first combined dataset of dissolved and particulate Zn and Cd in the AS (including the inflow and outflow to and from the Dotson and Getz ice shelves) collected as part of the GEOTRACES process study GPpr12. We use this dataset to assess the sources of both elements to the AS region and characterize the particle composition in the ASP. We find that the main source of both dissolved Zn and Cd in the AS is Circumpolar Deep Water (CDW), with an additional small flux of both metals from shelf sediments. By contrast, aerosol deposition, ice shelf melt, and sea ice melt are all deemed insignificant sources for either Zn or Cd in the AS. Labile particulate Zn and Cd dominate the total particulate pool in the surface layer, indicating that biological uptake is a predominant process for the cycling of both metals in the ASP, whereas sediment resuspension and ice shelf melt do not supply a significant amount of either particulate Zn or Cd. Additionally, we use two commonly used approaches to estimate biogenic and lithogenic particulate concentrations. We find high biogenic particulate concentrations at the surface, decreasing with depth, indicating remineralization plays an important role in the cycling of particulate metals. In contrast, lithogenic particulate metal concentrations remain low throughout the water column. We also show that the estimated uptake ratios of Zn and Cd relative to phosphate in the surface layer are lower than ... |
format |
Article in Journal/Newspaper |
author |
Tian, Hung An van Manen, Mathijs Wille, Flora Jung, Jinyoung Lee, Sang Hoon Kim, Tae Wan Aoki, Shigeru Eich, Charlotte Brussaard, Corina P.D. Reichart, Gert Jan Conway, Tim M. Middag, Rob |
author_facet |
Tian, Hung An van Manen, Mathijs Wille, Flora Jung, Jinyoung Lee, Sang Hoon Kim, Tae Wan Aoki, Shigeru Eich, Charlotte Brussaard, Corina P.D. Reichart, Gert Jan Conway, Tim M. Middag, Rob |
author_sort |
Tian, Hung An |
title |
The biogeochemistry of zinc and cadmium in the Amundsen Sea, coastal Antarctica |
title_short |
The biogeochemistry of zinc and cadmium in the Amundsen Sea, coastal Antarctica |
title_full |
The biogeochemistry of zinc and cadmium in the Amundsen Sea, coastal Antarctica |
title_fullStr |
The biogeochemistry of zinc and cadmium in the Amundsen Sea, coastal Antarctica |
title_full_unstemmed |
The biogeochemistry of zinc and cadmium in the Amundsen Sea, coastal Antarctica |
title_sort |
biogeochemistry of zinc and cadmium in the amundsen sea, coastal antarctica |
publishDate |
2023 |
url |
https://hdl.handle.net/11370/c0350fa8-1721-4120-afd8-c9618b8a01ea https://research.rug.nl/en/publications/c0350fa8-1721-4120-afd8-c9618b8a01ea https://doi.org/10.1016/j.marchem.2023.104223 https://pure.rug.nl/ws/files/612150670/1_s2.0_S0304420323000191_main.pdf http://www.scopus.com/inward/record.url?scp=85147698189&partnerID=8YFLogxK |
genre |
Amundsen Sea Antarc* Antarctica Ice Shelf Ice Shelves Sea ice |
genre_facet |
Amundsen Sea Antarc* Antarctica Ice Shelf Ice Shelves Sea ice |
op_source |
Tian , H A , van Manen , M , Wille , F , Jung , J , Lee , S H , Kim , T W , Aoki , S , Eich , C , Brussaard , C P D , Reichart , G J , Conway , T M & Middag , R 2023 , ' The biogeochemistry of zinc and cadmium in the Amundsen Sea, coastal Antarctica ' , Marine Chemistry , vol. 249 , 104223 . https://doi.org/10.1016/j.marchem.2023.104223 |
op_relation |
https://research.rug.nl/en/publications/c0350fa8-1721-4120-afd8-c9618b8a01ea |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1016/j.marchem.2023.104223 |
container_title |
Marine Chemistry |
container_volume |
249 |
container_start_page |
104223 |
_version_ |
1810476785774624768 |