High variability in dissolved iron concentrations in the vicinity of the Kerguelen Islands (Southern Ocean)
Dissolved Fe (dFe) concentrations were measured in the upper 1300 m of thewater column in the vicinity of the Kerguelen Islands as part of the secondKerguelen Ocean Plateau compared Study (KEOPS2). Concentrations ranged from0.06 nmol L −1 in offshore, Southern Ocean waters to 3.82 nmol L −1 within H...
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ftunivtasecite:oai:ecite.utas.edu.au:103856 2023-05-15T17:02:03+02:00 High variability in dissolved iron concentrations in the vicinity of the Kerguelen Islands (Southern Ocean) Queroue, F Sarthou, G Planquette, HF Bucciarelli, E Chever, F van der Merwe, P Lannuzel, D Townsend, AT Cheize, M Blain, S d'Ovidio, F Bowie, AR 2015 application/pdf https://doi.org/10.5194/bg-12-3869-2015 http://ecite.utas.edu.au/103856 en eng Copernicus GmbH http://ecite.utas.edu.au/103856/1/Queroue et al 2015.pdf http://dx.doi.org/10.5194/bg-12-3869-2015 Queroue, F and Sarthou, G and Planquette, HF and Bucciarelli, E and Chever, F and van der Merwe, P and Lannuzel, D and Townsend, AT and Cheize, M and Blain, S and d'Ovidio, F and Bowie, AR, High variability in dissolved iron concentrations in the vicinity of the Kerguelen Islands (Southern Ocean), Biogeosciences, 12, (12) pp. 3869-3883. ISSN 1726-4170 (2015) [Refereed Article] http://ecite.utas.edu.au/103856 Earth Sciences Oceanography Chemical Oceanography Refereed Article PeerReviewed 2015 ftunivtasecite https://doi.org/10.5194/bg-12-3869-2015 2019-12-13T22:05:13Z Dissolved Fe (dFe) concentrations were measured in the upper 1300 m of thewater column in the vicinity of the Kerguelen Islands as part of the secondKerguelen Ocean Plateau compared Study (KEOPS2). Concentrations ranged from0.06 nmol L −1 in offshore, Southern Ocean waters to 3.82 nmol L −1 within Hillsborough Bay, on the north-eastern coast of the Kerguelen Islands.Direct island runoff, glacial melting and resuspended sediments wereidentified as important inputs of dFe that could potentially fertilise thenorthern part of the plateau. A significant deep dFe enrichment was observedover the plateau with dFe concentrations increasing up to 1.30 nmol L −1 close to the seafloor, probably due to sediment resuspension and pore waterrelease. Biological uptake was shown to induce a significant decrease in dFeconcentrations between two visits (28 days apart) at a station above theplateau. Our work also considered other processes and sources, such aslateral advection of enriched seawater, remineralisation processes, and theinfluence of the polar front (PF) as a vector for Fe transport. Overall,heterogeneous sources of Fe over and off the Kerguelen Plateau, in additionto strong variability in Fe supply by vertical or horizontal transport, mayexplain the high variability in dFe concentrations observed during thisstudy. Article in Journal/Newspaper Kerguelen Islands Southern Ocean eCite UTAS (University of Tasmania) Hillsborough Bay ENVELOPE(69.775,69.775,-49.219,-49.219) Kerguelen Kerguelen Islands Southern Ocean Biogeosciences 12 12 3869 3883 |
institution |
Open Polar |
collection |
eCite UTAS (University of Tasmania) |
op_collection_id |
ftunivtasecite |
language |
English |
topic |
Earth Sciences Oceanography Chemical Oceanography |
spellingShingle |
Earth Sciences Oceanography Chemical Oceanography Queroue, F Sarthou, G Planquette, HF Bucciarelli, E Chever, F van der Merwe, P Lannuzel, D Townsend, AT Cheize, M Blain, S d'Ovidio, F Bowie, AR High variability in dissolved iron concentrations in the vicinity of the Kerguelen Islands (Southern Ocean) |
topic_facet |
Earth Sciences Oceanography Chemical Oceanography |
description |
Dissolved Fe (dFe) concentrations were measured in the upper 1300 m of thewater column in the vicinity of the Kerguelen Islands as part of the secondKerguelen Ocean Plateau compared Study (KEOPS2). Concentrations ranged from0.06 nmol L −1 in offshore, Southern Ocean waters to 3.82 nmol L −1 within Hillsborough Bay, on the north-eastern coast of the Kerguelen Islands.Direct island runoff, glacial melting and resuspended sediments wereidentified as important inputs of dFe that could potentially fertilise thenorthern part of the plateau. A significant deep dFe enrichment was observedover the plateau with dFe concentrations increasing up to 1.30 nmol L −1 close to the seafloor, probably due to sediment resuspension and pore waterrelease. Biological uptake was shown to induce a significant decrease in dFeconcentrations between two visits (28 days apart) at a station above theplateau. Our work also considered other processes and sources, such aslateral advection of enriched seawater, remineralisation processes, and theinfluence of the polar front (PF) as a vector for Fe transport. Overall,heterogeneous sources of Fe over and off the Kerguelen Plateau, in additionto strong variability in Fe supply by vertical or horizontal transport, mayexplain the high variability in dFe concentrations observed during thisstudy. |
format |
Article in Journal/Newspaper |
author |
Queroue, F Sarthou, G Planquette, HF Bucciarelli, E Chever, F van der Merwe, P Lannuzel, D Townsend, AT Cheize, M Blain, S d'Ovidio, F Bowie, AR |
author_facet |
Queroue, F Sarthou, G Planquette, HF Bucciarelli, E Chever, F van der Merwe, P Lannuzel, D Townsend, AT Cheize, M Blain, S d'Ovidio, F Bowie, AR |
author_sort |
Queroue, F |
title |
High variability in dissolved iron concentrations in the vicinity of the Kerguelen Islands (Southern Ocean) |
title_short |
High variability in dissolved iron concentrations in the vicinity of the Kerguelen Islands (Southern Ocean) |
title_full |
High variability in dissolved iron concentrations in the vicinity of the Kerguelen Islands (Southern Ocean) |
title_fullStr |
High variability in dissolved iron concentrations in the vicinity of the Kerguelen Islands (Southern Ocean) |
title_full_unstemmed |
High variability in dissolved iron concentrations in the vicinity of the Kerguelen Islands (Southern Ocean) |
title_sort |
high variability in dissolved iron concentrations in the vicinity of the kerguelen islands (southern ocean) |
publisher |
Copernicus GmbH |
publishDate |
2015 |
url |
https://doi.org/10.5194/bg-12-3869-2015 http://ecite.utas.edu.au/103856 |
long_lat |
ENVELOPE(69.775,69.775,-49.219,-49.219) |
geographic |
Hillsborough Bay Kerguelen Kerguelen Islands Southern Ocean |
geographic_facet |
Hillsborough Bay Kerguelen Kerguelen Islands Southern Ocean |
genre |
Kerguelen Islands Southern Ocean |
genre_facet |
Kerguelen Islands Southern Ocean |
op_relation |
http://ecite.utas.edu.au/103856/1/Queroue et al 2015.pdf http://dx.doi.org/10.5194/bg-12-3869-2015 Queroue, F and Sarthou, G and Planquette, HF and Bucciarelli, E and Chever, F and van der Merwe, P and Lannuzel, D and Townsend, AT and Cheize, M and Blain, S and d'Ovidio, F and Bowie, AR, High variability in dissolved iron concentrations in the vicinity of the Kerguelen Islands (Southern Ocean), Biogeosciences, 12, (12) pp. 3869-3883. ISSN 1726-4170 (2015) [Refereed Article] http://ecite.utas.edu.au/103856 |
op_doi |
https://doi.org/10.5194/bg-12-3869-2015 |
container_title |
Biogeosciences |
container_volume |
12 |
container_issue |
12 |
container_start_page |
3869 |
op_container_end_page |
3883 |
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1766055274369515520 |