Seasonal cycling of zinc and cobalt in the south-eastern Atlantic along the GEOTRACES GA10 section
We report the distributions and stoichiometry ofdissolved zinc (dZn) and cobalt (dCo) in sub-tropical andsub-Antarctic waters of the south-eastern Atlantic Oceanduring austral spring 2010 and summer 2011/2012. In sub-tropical surface waters, mixed-layer dZn and dCo con-centrations during early sprin...
Published in: | Biogeosciences |
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Main Authors: | , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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Copernicus Publications (EGU)
2021
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Online Access: | https://oceanrep.geomar.de/id/eprint/49268/ https://oceanrep.geomar.de/id/eprint/49268/13/bg-18-4265-2021.pdf https://oceanrep.geomar.de/id/eprint/49268/14/bg-18-4265-2021-supplement.pdf https://doi.org/10.5194/bg-18-4265-2021 |
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ftoceanrep:oai:oceanrep.geomar.de:49268 2024-02-11T09:55:43+01:00 Seasonal cycling of zinc and cobalt in the south-eastern Atlantic along the GEOTRACES GA10 section Wyatt, Neil J. Milne, Angela Achterberg, Eric P. Browning, Thomas J. Bouman, Heather A. Woodward, E. Malcolm S. Lohan, Maeve C. 2021-07-21 text https://oceanrep.geomar.de/id/eprint/49268/ https://oceanrep.geomar.de/id/eprint/49268/13/bg-18-4265-2021.pdf https://oceanrep.geomar.de/id/eprint/49268/14/bg-18-4265-2021-supplement.pdf https://doi.org/10.5194/bg-18-4265-2021 en eng Copernicus Publications (EGU) https://oceanrep.geomar.de/id/eprint/49268/13/bg-18-4265-2021.pdf https://oceanrep.geomar.de/id/eprint/49268/14/bg-18-4265-2021-supplement.pdf Wyatt, N. J., Milne, A., Achterberg, E. P. , Browning, T. J. , Bouman, H. A., Woodward, E. M. S. and Lohan, M. C. (2021) Seasonal cycling of zinc and cobalt in the south-eastern Atlantic along the GEOTRACES GA10 section. Open Access Biogeosciences (BG), 18 . pp. 4265-4280. DOI 10.5194/bg-18-4265-2021 <https://doi.org/10.5194/bg-18-4265-2021>. doi:10.5194/bg-18-4265-2021 cc_by_4.0 info:eu-repo/semantics/openAccess Article PeerReviewed 2021 ftoceanrep https://doi.org/10.5194/bg-18-4265-2021 2024-01-15T00:22:42Z We report the distributions and stoichiometry ofdissolved zinc (dZn) and cobalt (dCo) in sub-tropical andsub-Antarctic waters of the south-eastern Atlantic Oceanduring austral spring 2010 and summer 2011/2012. In sub-tropical surface waters, mixed-layer dZn and dCo con-centrations during early spring were 1.60±2.58 nM and30±11 pM, respectively, compared with summer values of0.14±0.08 nM and 24±6 pM. The elevated spring dZn con-centrations resulted from an apparent offshore transport ofelevated dZn at depths between 20–55 m, derived from theAgulhas Bank. In contrast, open-ocean sub-Antarctic surfacewaters displayed largely consistent inter-seasonal mixed-layer dZn and dCo concentrations of 0.10±0.07 nM and11±5 pM, respectively. Trace metal stoichiometry, calcu-lated from concentration inventories, suggests a greater over-all removal for dZn relative to dCo in the upper water columnof the south-eastern Atlantic, with inter-seasonally decreas-ing dZn/dCo inventory ratios of 19–5 and 13–7 mol mol−1for sub-tropical surface water and sub-Antarctic surface wa-ter, respectively. In this paper, we investigate how the sea-sonal influences of external input and phytoplankton succes-sion may relate to the distribution of dZn and dCo and varia-tion in dZn/dCo stoichiometry across these two distinct eco-logical regimes in the south-eastern Atlantic. Article in Journal/Newspaper Antarc* Antarctic OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Antarctic Austral Sion ENVELOPE(13.758,13.758,66.844,66.844) Biogeosciences 18 14 4265 4280 |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
We report the distributions and stoichiometry ofdissolved zinc (dZn) and cobalt (dCo) in sub-tropical andsub-Antarctic waters of the south-eastern Atlantic Oceanduring austral spring 2010 and summer 2011/2012. In sub-tropical surface waters, mixed-layer dZn and dCo con-centrations during early spring were 1.60±2.58 nM and30±11 pM, respectively, compared with summer values of0.14±0.08 nM and 24±6 pM. The elevated spring dZn con-centrations resulted from an apparent offshore transport ofelevated dZn at depths between 20–55 m, derived from theAgulhas Bank. In contrast, open-ocean sub-Antarctic surfacewaters displayed largely consistent inter-seasonal mixed-layer dZn and dCo concentrations of 0.10±0.07 nM and11±5 pM, respectively. Trace metal stoichiometry, calcu-lated from concentration inventories, suggests a greater over-all removal for dZn relative to dCo in the upper water columnof the south-eastern Atlantic, with inter-seasonally decreas-ing dZn/dCo inventory ratios of 19–5 and 13–7 mol mol−1for sub-tropical surface water and sub-Antarctic surface wa-ter, respectively. In this paper, we investigate how the sea-sonal influences of external input and phytoplankton succes-sion may relate to the distribution of dZn and dCo and varia-tion in dZn/dCo stoichiometry across these two distinct eco-logical regimes in the south-eastern Atlantic. |
format |
Article in Journal/Newspaper |
author |
Wyatt, Neil J. Milne, Angela Achterberg, Eric P. Browning, Thomas J. Bouman, Heather A. Woodward, E. Malcolm S. Lohan, Maeve C. |
spellingShingle |
Wyatt, Neil J. Milne, Angela Achterberg, Eric P. Browning, Thomas J. Bouman, Heather A. Woodward, E. Malcolm S. Lohan, Maeve C. Seasonal cycling of zinc and cobalt in the south-eastern Atlantic along the GEOTRACES GA10 section |
author_facet |
Wyatt, Neil J. Milne, Angela Achterberg, Eric P. Browning, Thomas J. Bouman, Heather A. Woodward, E. Malcolm S. Lohan, Maeve C. |
author_sort |
Wyatt, Neil J. |
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 Publications (EGU) |
publishDate |
2021 |
url |
https://oceanrep.geomar.de/id/eprint/49268/ https://oceanrep.geomar.de/id/eprint/49268/13/bg-18-4265-2021.pdf https://oceanrep.geomar.de/id/eprint/49268/14/bg-18-4265-2021-supplement.pdf https://doi.org/10.5194/bg-18-4265-2021 |
long_lat |
ENVELOPE(13.758,13.758,66.844,66.844) |
geographic |
Antarctic Austral Sion |
geographic_facet |
Antarctic Austral Sion |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
https://oceanrep.geomar.de/id/eprint/49268/13/bg-18-4265-2021.pdf https://oceanrep.geomar.de/id/eprint/49268/14/bg-18-4265-2021-supplement.pdf Wyatt, N. J., Milne, A., Achterberg, E. P. , Browning, T. J. , Bouman, H. A., Woodward, E. M. S. and Lohan, M. C. (2021) Seasonal cycling of zinc and cobalt in the south-eastern Atlantic along the GEOTRACES GA10 section. Open Access Biogeosciences (BG), 18 . pp. 4265-4280. DOI 10.5194/bg-18-4265-2021 <https://doi.org/10.5194/bg-18-4265-2021>. doi:10.5194/bg-18-4265-2021 |
op_rights |
cc_by_4.0 info:eu-repo/semantics/openAccess |
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 |
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1790598421345730560 |