Potentially bioavailable iron produced through benthic cycling in glaciated Arctic fjords of Svalbard
Abstract The Arctic has the highest warming rates on Earth. Glaciated fjord ecosystems, which are hotspots of carbon cycling and burial, are extremely sensitive to this warming. Glaciers are important for the transport of iron from land to sea and supply this essential nutrient to phytoplankton in h...
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2021
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Online Access: | http://dx.doi.org/10.1038/s41467-021-21558-w http://www.nature.com/articles/s41467-021-21558-w.pdf http://www.nature.com/articles/s41467-021-21558-w |
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crspringernat:10.1038/s41467-021-21558-w 2023-05-15T14:42:12+02:00 Potentially bioavailable iron produced through benthic cycling in glaciated Arctic fjords of Svalbard Laufer-Meiser, Katja Michaud, Alexander B. Maisch, Markus Byrne, James M. Kappler, Andreas Patterson, Molly O. Røy, Hans Jørgensen, Bo Barker Deutsche Forschungsgemeinschaft Det Frie Forskningsråd Danmarks Grundforskningsfond 2021 http://dx.doi.org/10.1038/s41467-021-21558-w http://www.nature.com/articles/s41467-021-21558-w.pdf http://www.nature.com/articles/s41467-021-21558-w en eng Springer Science and Business Media LLC https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 CC-BY Nature Communications volume 12, issue 1 ISSN 2041-1723 General Physics and Astronomy General Biochemistry, Genetics and Molecular Biology General Chemistry journal-article 2021 crspringernat https://doi.org/10.1038/s41467-021-21558-w 2022-01-04T09:37:35Z Abstract The Arctic has the highest warming rates on Earth. Glaciated fjord ecosystems, which are hotspots of carbon cycling and burial, are extremely sensitive to this warming. Glaciers are important for the transport of iron from land to sea and supply this essential nutrient to phytoplankton in high-latitude marine ecosystems. However, up to 95% of the glacially-sourced iron settles to sediments close to the glacial source. Our data show that while 0.6–12% of the total glacially-sourced iron is potentially bioavailable, biogeochemical cycling in Arctic fjord sediments converts the glacially-derived iron into more labile phases, generating up to a 9-fold increase in the amount of potentially bioavailable iron. Arctic fjord sediments are thus an important source of potentially bioavailable iron. However, our data suggests that as glaciers retreat onto land the flux of iron to the sediment-water interface may be reduced. Glacial retreat therefore likely impacts iron cycling in coastal marine ecosystems. Article in Journal/Newspaper Arctic Phytoplankton Svalbard Springer Nature (via Crossref) Arctic Svalbard Nature Communications 12 1 |
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Open Polar |
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Springer Nature (via Crossref) |
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crspringernat |
language |
English |
topic |
General Physics and Astronomy General Biochemistry, Genetics and Molecular Biology General Chemistry |
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General Physics and Astronomy General Biochemistry, Genetics and Molecular Biology General Chemistry Laufer-Meiser, Katja Michaud, Alexander B. Maisch, Markus Byrne, James M. Kappler, Andreas Patterson, Molly O. Røy, Hans Jørgensen, Bo Barker Potentially bioavailable iron produced through benthic cycling in glaciated Arctic fjords of Svalbard |
topic_facet |
General Physics and Astronomy General Biochemistry, Genetics and Molecular Biology General Chemistry |
description |
Abstract The Arctic has the highest warming rates on Earth. Glaciated fjord ecosystems, which are hotspots of carbon cycling and burial, are extremely sensitive to this warming. Glaciers are important for the transport of iron from land to sea and supply this essential nutrient to phytoplankton in high-latitude marine ecosystems. However, up to 95% of the glacially-sourced iron settles to sediments close to the glacial source. Our data show that while 0.6–12% of the total glacially-sourced iron is potentially bioavailable, biogeochemical cycling in Arctic fjord sediments converts the glacially-derived iron into more labile phases, generating up to a 9-fold increase in the amount of potentially bioavailable iron. Arctic fjord sediments are thus an important source of potentially bioavailable iron. However, our data suggests that as glaciers retreat onto land the flux of iron to the sediment-water interface may be reduced. Glacial retreat therefore likely impacts iron cycling in coastal marine ecosystems. |
author2 |
Deutsche Forschungsgemeinschaft Det Frie Forskningsråd Danmarks Grundforskningsfond |
format |
Article in Journal/Newspaper |
author |
Laufer-Meiser, Katja Michaud, Alexander B. Maisch, Markus Byrne, James M. Kappler, Andreas Patterson, Molly O. Røy, Hans Jørgensen, Bo Barker |
author_facet |
Laufer-Meiser, Katja Michaud, Alexander B. Maisch, Markus Byrne, James M. Kappler, Andreas Patterson, Molly O. Røy, Hans Jørgensen, Bo Barker |
author_sort |
Laufer-Meiser, Katja |
title |
Potentially bioavailable iron produced through benthic cycling in glaciated Arctic fjords of Svalbard |
title_short |
Potentially bioavailable iron produced through benthic cycling in glaciated Arctic fjords of Svalbard |
title_full |
Potentially bioavailable iron produced through benthic cycling in glaciated Arctic fjords of Svalbard |
title_fullStr |
Potentially bioavailable iron produced through benthic cycling in glaciated Arctic fjords of Svalbard |
title_full_unstemmed |
Potentially bioavailable iron produced through benthic cycling in glaciated Arctic fjords of Svalbard |
title_sort |
potentially bioavailable iron produced through benthic cycling in glaciated arctic fjords of svalbard |
publisher |
Springer Science and Business Media LLC |
publishDate |
2021 |
url |
http://dx.doi.org/10.1038/s41467-021-21558-w http://www.nature.com/articles/s41467-021-21558-w.pdf http://www.nature.com/articles/s41467-021-21558-w |
geographic |
Arctic Svalbard |
geographic_facet |
Arctic Svalbard |
genre |
Arctic Phytoplankton Svalbard |
genre_facet |
Arctic Phytoplankton Svalbard |
op_source |
Nature Communications volume 12, issue 1 ISSN 2041-1723 |
op_rights |
https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1038/s41467-021-21558-w |
container_title |
Nature Communications |
container_volume |
12 |
container_issue |
1 |
_version_ |
1766313911515086848 |