The biogeochemical cycle of iron in the ocean
Advances in iron biogeochemistry have transformed our understanding of the oceanic iron cycle over the past three decades: multiple sources of iron to the ocean were discovered, including dust, coastal and shallow sediments, sea ice and hydrothermal fluids. This new iron is rapidly recycled in the u...
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ftanucanberra:oai:openresearch-repository.anu.edu.au:1885/55479 2024-01-14T10:10:37+01:00 The biogeochemical cycle of iron in the ocean Boyd, P W Ellwood, Michael http://hdl.handle.net/1885/55479 https://doi.org/10.1038/ngeo964 https://openresearch-repository.anu.edu.au/bitstream/1885/55479/5/Boyd_Ellwood_the_biogeochemical_2010.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/55479/7/01_Boyd_The_biogeochemical_cycle_of_2010.pdf.jpg unknown Nature Publishing Group 1752-0894 http://hdl.handle.net/1885/55479 doi:10.1038/ngeo964 https://openresearch-repository.anu.edu.au/bitstream/1885/55479/5/Boyd_Ellwood_the_biogeochemical_2010.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/55479/7/01_Boyd_The_biogeochemical_cycle_of_2010.pdf.jpg Nature Geoscience Keywords: bacterium biogeochemical cycle biogeochemistry coastal sediment concentration (composition) dissolved matter dust hydrothermal fluid iron ligand marine environment Journal article ftanucanberra https://doi.org/10.1038/ngeo964 2023-12-15T09:38:20Z Advances in iron biogeochemistry have transformed our understanding of the oceanic iron cycle over the past three decades: multiple sources of iron to the ocean were discovered, including dust, coastal and shallow sediments, sea ice and hydrothermal fluids. This new iron is rapidly recycled in the upper ocean by a range of organisms; up to 50% of the total soluble iron pool is turned over weekly in this way in some ocean regions. For example, bacteria dissolve particulate iron and at the same time release compounds - iron-binding ligands - that complex with iron and therefore help to keep it in solution. Sinking particles, on the other hand, also scavenge iron from solution. The balance between these supply and removal processes determines the concentration of dissolved iron in the ocean. Whether this balance, and many other facets of the biogeochemical cycle, will change as the climate warms remains to be seen. Article in Journal/Newspaper Sea ice Australian National University: ANU Digital Collections Nature Geoscience 3 10 675 682 |
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Australian National University: ANU Digital Collections |
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Keywords: bacterium biogeochemical cycle biogeochemistry coastal sediment concentration (composition) dissolved matter dust hydrothermal fluid iron ligand marine environment |
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Keywords: bacterium biogeochemical cycle biogeochemistry coastal sediment concentration (composition) dissolved matter dust hydrothermal fluid iron ligand marine environment Boyd, P W Ellwood, Michael The biogeochemical cycle of iron in the ocean |
topic_facet |
Keywords: bacterium biogeochemical cycle biogeochemistry coastal sediment concentration (composition) dissolved matter dust hydrothermal fluid iron ligand marine environment |
description |
Advances in iron biogeochemistry have transformed our understanding of the oceanic iron cycle over the past three decades: multiple sources of iron to the ocean were discovered, including dust, coastal and shallow sediments, sea ice and hydrothermal fluids. This new iron is rapidly recycled in the upper ocean by a range of organisms; up to 50% of the total soluble iron pool is turned over weekly in this way in some ocean regions. For example, bacteria dissolve particulate iron and at the same time release compounds - iron-binding ligands - that complex with iron and therefore help to keep it in solution. Sinking particles, on the other hand, also scavenge iron from solution. The balance between these supply and removal processes determines the concentration of dissolved iron in the ocean. Whether this balance, and many other facets of the biogeochemical cycle, will change as the climate warms remains to be seen. |
format |
Article in Journal/Newspaper |
author |
Boyd, P W Ellwood, Michael |
author_facet |
Boyd, P W Ellwood, Michael |
author_sort |
Boyd, P W |
title |
The biogeochemical cycle of iron in the ocean |
title_short |
The biogeochemical cycle of iron in the ocean |
title_full |
The biogeochemical cycle of iron in the ocean |
title_fullStr |
The biogeochemical cycle of iron in the ocean |
title_full_unstemmed |
The biogeochemical cycle of iron in the ocean |
title_sort |
biogeochemical cycle of iron in the ocean |
publisher |
Nature Publishing Group |
url |
http://hdl.handle.net/1885/55479 https://doi.org/10.1038/ngeo964 https://openresearch-repository.anu.edu.au/bitstream/1885/55479/5/Boyd_Ellwood_the_biogeochemical_2010.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/55479/7/01_Boyd_The_biogeochemical_cycle_of_2010.pdf.jpg |
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Sea ice |
genre_facet |
Sea ice |
op_source |
Nature Geoscience |
op_relation |
1752-0894 http://hdl.handle.net/1885/55479 doi:10.1038/ngeo964 https://openresearch-repository.anu.edu.au/bitstream/1885/55479/5/Boyd_Ellwood_the_biogeochemical_2010.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/55479/7/01_Boyd_The_biogeochemical_cycle_of_2010.pdf.jpg |
op_doi |
https://doi.org/10.1038/ngeo964 |
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Nature Geoscience |
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3 |
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10 |
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675 |
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682 |
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