Iron Biogeochemistry in the High Latitude North Atlantic Ocean

Iron (Fe) is an essential micronutrient for marine microbial organisms, and low supply controls productivity in large parts of the world’s ocean. The high latitude North Atlantic is seasonally Fe limited, but Fe distributions and source strengths are poorly constrained. Surface ocean dissolved Fe (D...

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Published in:Scientific Reports
Main Authors: Achterberg, Eric P., Steigenberger, Sebastian, Marsay, Chris M., LeMoigne, Frédéric A. C., Painter, Stuart C., Baker, Alex R., Connelly, Douglas P., Moore, C. Mark, Tagliabue, Alessandro, Tanhua, Toste
Format: Text
Language:English
Published: Nature Publishing Group UK 2018
Subjects:
Online Access:http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5775377/
http://www.ncbi.nlm.nih.gov/pubmed/29352137
https://doi.org/10.1038/s41598-018-19472-1
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spelling ftpubmed:oai:pubmedcentral.nih.gov:5775377 2023-05-15T16:09:35+02:00 Iron Biogeochemistry in the High Latitude North Atlantic Ocean Achterberg, Eric P. Steigenberger, Sebastian Marsay, Chris M. LeMoigne, Frédéric A. C. Painter, Stuart C. Baker, Alex R. Connelly, Douglas P. Moore, C. Mark Tagliabue, Alessandro Tanhua, Toste 2018-01-19 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5775377/ http://www.ncbi.nlm.nih.gov/pubmed/29352137 https://doi.org/10.1038/s41598-018-19472-1 en eng Nature Publishing Group UK http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5775377/ http://www.ncbi.nlm.nih.gov/pubmed/29352137 http://dx.doi.org/10.1038/s41598-018-19472-1 © The Author(s) 2018 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. CC-BY Article Text 2018 ftpubmed https://doi.org/10.1038/s41598-018-19472-1 2018-02-04T01:25:54Z Iron (Fe) is an essential micronutrient for marine microbial organisms, and low supply controls productivity in large parts of the world’s ocean. The high latitude North Atlantic is seasonally Fe limited, but Fe distributions and source strengths are poorly constrained. Surface ocean dissolved Fe (DFe) concentrations were low in the study region (<0.1 nM) in summer 2010, with significant perturbations during spring 2010 in the Iceland Basin as a result of an eruption of the Eyjafjallajökull volcano (up to 2.5 nM DFe near Iceland) with biogeochemical consequences. Deep water concentrations in the vicinity of the Reykjanes Ridge system were influenced by pronounced sediment resuspension, with indications for additional inputs by hydrothermal vents, with subsequent lateral transport of Fe and manganese plumes of up to 250–300 km. Particulate Fe formed the dominant pool, as evidenced by 4–17 fold higher total dissolvable Fe compared with DFe concentrations, and a dynamic exchange between the fractions appeared to buffer deep water DFe. Here we show that Fe supply associated with deep winter mixing (up to 103 nmol m−2 d−1) was at least ca. 4–10 times higher than atmospheric deposition, diffusive fluxes at the base of the summer mixed layer, and horizontal surface ocean fluxes. Text Eyjafjallajökull Iceland North Atlantic PubMed Central (PMC) Reykjanes ENVELOPE(-22.250,-22.250,65.467,65.467) Scientific Reports 8 1
institution Open Polar
collection PubMed Central (PMC)
op_collection_id ftpubmed
language English
topic Article
spellingShingle Article
Achterberg, Eric P.
Steigenberger, Sebastian
Marsay, Chris M.
LeMoigne, Frédéric A. C.
Painter, Stuart C.
Baker, Alex R.
Connelly, Douglas P.
Moore, C. Mark
Tagliabue, Alessandro
Tanhua, Toste
Iron Biogeochemistry in the High Latitude North Atlantic Ocean
topic_facet Article
description Iron (Fe) is an essential micronutrient for marine microbial organisms, and low supply controls productivity in large parts of the world’s ocean. The high latitude North Atlantic is seasonally Fe limited, but Fe distributions and source strengths are poorly constrained. Surface ocean dissolved Fe (DFe) concentrations were low in the study region (<0.1 nM) in summer 2010, with significant perturbations during spring 2010 in the Iceland Basin as a result of an eruption of the Eyjafjallajökull volcano (up to 2.5 nM DFe near Iceland) with biogeochemical consequences. Deep water concentrations in the vicinity of the Reykjanes Ridge system were influenced by pronounced sediment resuspension, with indications for additional inputs by hydrothermal vents, with subsequent lateral transport of Fe and manganese plumes of up to 250–300 km. Particulate Fe formed the dominant pool, as evidenced by 4–17 fold higher total dissolvable Fe compared with DFe concentrations, and a dynamic exchange between the fractions appeared to buffer deep water DFe. Here we show that Fe supply associated with deep winter mixing (up to 103 nmol m−2 d−1) was at least ca. 4–10 times higher than atmospheric deposition, diffusive fluxes at the base of the summer mixed layer, and horizontal surface ocean fluxes.
format Text
author Achterberg, Eric P.
Steigenberger, Sebastian
Marsay, Chris M.
LeMoigne, Frédéric A. C.
Painter, Stuart C.
Baker, Alex R.
Connelly, Douglas P.
Moore, C. Mark
Tagliabue, Alessandro
Tanhua, Toste
author_facet Achterberg, Eric P.
Steigenberger, Sebastian
Marsay, Chris M.
LeMoigne, Frédéric A. C.
Painter, Stuart C.
Baker, Alex R.
Connelly, Douglas P.
Moore, C. Mark
Tagliabue, Alessandro
Tanhua, Toste
author_sort Achterberg, Eric P.
title Iron Biogeochemistry in the High Latitude North Atlantic Ocean
title_short Iron Biogeochemistry in the High Latitude North Atlantic Ocean
title_full Iron Biogeochemistry in the High Latitude North Atlantic Ocean
title_fullStr Iron Biogeochemistry in the High Latitude North Atlantic Ocean
title_full_unstemmed Iron Biogeochemistry in the High Latitude North Atlantic Ocean
title_sort iron biogeochemistry in the high latitude north atlantic ocean
publisher Nature Publishing Group UK
publishDate 2018
url http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5775377/
http://www.ncbi.nlm.nih.gov/pubmed/29352137
https://doi.org/10.1038/s41598-018-19472-1
long_lat ENVELOPE(-22.250,-22.250,65.467,65.467)
geographic Reykjanes
geographic_facet Reykjanes
genre Eyjafjallajökull
Iceland
North Atlantic
genre_facet Eyjafjallajökull
Iceland
North Atlantic
op_relation http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5775377/
http://www.ncbi.nlm.nih.gov/pubmed/29352137
http://dx.doi.org/10.1038/s41598-018-19472-1
op_rights © The Author(s) 2018
Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
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op_doi https://doi.org/10.1038/s41598-018-19472-1
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