Seasonal cycling of zinc and cobalt in the south-eastern Atlantic along the GEOTRACES GA10 section
<jats:p>Abstract. We report the distributions and stoichiometry of dissolved zinc (dZn) and cobalt (dCo) in sub-tropical and sub-Antarctic waters of the south-eastern Atlantic Ocean during austral spring 2010 and summer 2011/2012. In sub-tropical surface waters, mixed-layer dZn and dCo concent...
Published in: | Biogeosciences |
---|---|
Main Authors: | , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Copernicus GmbH
2021
|
Subjects: | |
Online Access: | http://hdl.handle.net/10026.1/17368 https://doi.org/10.5194/bg-18-4265-2021 |
id |
ftunivplympearl:oai:pearl.plymouth.ac.uk:10026.1/17368 |
---|---|
record_format |
openpolar |
spelling |
ftunivplympearl:oai:pearl.plymouth.ac.uk:10026.1/17368 2024-06-09T07:41:09+00:00 Seasonal cycling of zinc and cobalt in the south-eastern Atlantic along the GEOTRACES GA10 section Wyatt, NJ Milne, A Achterberg, EP Browning, TJ Bouman, HA Woodward, EMS Lohan, MC 2021-07-21 4265-4280 application/pdf http://hdl.handle.net/10026.1/17368 https://doi.org/10.5194/bg-18-4265-2021 en eng Copernicus GmbH ISSN:1726-4170 ISSN:1726-4189 E-ISSN:1726-4189 1726-4170 1726-4189 http://hdl.handle.net/10026.1/17368 doi:10.5194/bg-18-4265-2021 2021-7-27 Not known 37 Earth Sciences 3708 Oceanography journal-article Article 2021 ftunivplympearl https://doi.org/10.5194/bg-18-4265-2021 2024-05-14T23:48:21Z <jats:p>Abstract. We report the distributions and stoichiometry of dissolved zinc (dZn) and cobalt (dCo) in sub-tropical and sub-Antarctic waters of the south-eastern Atlantic Ocean during austral spring 2010 and summer 2011/2012. In sub-tropical surface waters, mixed-layer dZn and dCo concentrations during early spring were 1.60 ± 2.58 nM and 30 ± 11 pM, respectively, compared with summer values of 0.14 ± 0.08 nM and 24 ± 6 pM. The elevated spring dZn concentrations resulted from an apparent offshore transport of elevated dZn at depths between 20–55 m, derived from the Agulhas Bank. In contrast, open-ocean sub-Antarctic surface waters displayed largely consistent inter-seasonal mixed-layer dZn and dCo concentrations of 0.10 ± 0.07 nM and 11 ± 5 pM, respectively. Trace metal stoichiometry, calculated from concentration inventories, suggests a greater overall removal for dZn relative to dCo in the upper water column of the south-eastern Atlantic, with inter-seasonally decreasing dZn / dCo inventory ratios of 19–5 and 13–7 mol mol−1 for sub-tropical surface water and sub-Antarctic surface water, respectively. In this paper, we investigate how the seasonal influences of external input and phytoplankton succession may relate to the distribution of dZn and dCo and variation in dZn / dCo stoichiometry across these two distinct ecological regimes in the south-eastern Atlantic. </jats:p> Article in Journal/Newspaper Antarc* Antarctic PEARL (Plymouth Electronic Archiv & ResearchLibrary, Plymouth University) Antarctic Austral Biogeosciences 18 14 4265 4280 |
institution |
Open Polar |
collection |
PEARL (Plymouth Electronic Archiv & ResearchLibrary, Plymouth University) |
op_collection_id |
ftunivplympearl |
language |
English |
topic |
37 Earth Sciences 3708 Oceanography |
spellingShingle |
37 Earth Sciences 3708 Oceanography Wyatt, NJ Milne, A Achterberg, EP Browning, TJ Bouman, HA Woodward, EMS Lohan, MC Seasonal cycling of zinc and cobalt in the south-eastern Atlantic along the GEOTRACES GA10 section |
topic_facet |
37 Earth Sciences 3708 Oceanography |
description |
<jats:p>Abstract. We report the distributions and stoichiometry of dissolved zinc (dZn) and cobalt (dCo) in sub-tropical and sub-Antarctic waters of the south-eastern Atlantic Ocean during austral spring 2010 and summer 2011/2012. In sub-tropical surface waters, mixed-layer dZn and dCo concentrations during early spring were 1.60 ± 2.58 nM and 30 ± 11 pM, respectively, compared with summer values of 0.14 ± 0.08 nM and 24 ± 6 pM. The elevated spring dZn concentrations resulted from an apparent offshore transport of elevated dZn at depths between 20–55 m, derived from the Agulhas Bank. In contrast, open-ocean sub-Antarctic surface waters displayed largely consistent inter-seasonal mixed-layer dZn and dCo concentrations of 0.10 ± 0.07 nM and 11 ± 5 pM, respectively. Trace metal stoichiometry, calculated from concentration inventories, suggests a greater overall removal for dZn relative to dCo in the upper water column of the south-eastern Atlantic, with inter-seasonally decreasing dZn / dCo inventory ratios of 19–5 and 13–7 mol mol−1 for sub-tropical surface water and sub-Antarctic surface water, respectively. In this paper, we investigate how the seasonal influences of external input and phytoplankton succession may relate to the distribution of dZn and dCo and variation in dZn / dCo stoichiometry across these two distinct ecological regimes in the south-eastern Atlantic. </jats:p> |
format |
Article in Journal/Newspaper |
author |
Wyatt, NJ Milne, A Achterberg, EP Browning, TJ Bouman, HA Woodward, EMS Lohan, MC |
author_facet |
Wyatt, NJ Milne, A Achterberg, EP Browning, TJ Bouman, HA Woodward, EMS Lohan, MC |
author_sort |
Wyatt, NJ |
title |
Seasonal cycling of zinc and cobalt in the south-eastern Atlantic along the GEOTRACES GA10 section |
title_short |
Seasonal cycling of zinc and cobalt in the south-eastern Atlantic along the GEOTRACES GA10 section |
title_full |
Seasonal cycling of zinc and cobalt in the south-eastern Atlantic along the GEOTRACES GA10 section |
title_fullStr |
Seasonal cycling of zinc and cobalt in the south-eastern Atlantic along the GEOTRACES GA10 section |
title_full_unstemmed |
Seasonal cycling of zinc and cobalt in the south-eastern Atlantic along the GEOTRACES GA10 section |
title_sort |
seasonal cycling of zinc and cobalt in the south-eastern atlantic along the geotraces ga10 section |
publisher |
Copernicus GmbH |
publishDate |
2021 |
url |
http://hdl.handle.net/10026.1/17368 https://doi.org/10.5194/bg-18-4265-2021 |
geographic |
Antarctic Austral |
geographic_facet |
Antarctic Austral |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
ISSN:1726-4170 ISSN:1726-4189 E-ISSN:1726-4189 1726-4170 1726-4189 http://hdl.handle.net/10026.1/17368 doi:10.5194/bg-18-4265-2021 |
op_rights |
2021-7-27 Not known |
op_doi |
https://doi.org/10.5194/bg-18-4265-2021 |
container_title |
Biogeosciences |
container_volume |
18 |
container_issue |
14 |
container_start_page |
4265 |
op_container_end_page |
4280 |
_version_ |
1801369590390849536 |