Benthic phosphorus cycling within the Eurasian marginal sea ice zone
The Arctic Ocean region is currently undergoing dramatic changes, which will likely alter the nutrient cycles that underpin Arctic marine ecosystems. Phosphate is a key limiting nutrient for marine life but gaps in our understanding of the Arctic phosphorus (P) cycle persist. In this study, we inves...
Published in: | Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences |
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2020
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Online Access: | http://dx.doi.org/10.1098/rsta.2019.0358 https://royalsocietypublishing.org/doi/pdf/10.1098/rsta.2019.0358 https://royalsocietypublishing.org/doi/full-xml/10.1098/rsta.2019.0358 |
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crroyalsociety:10.1098/rsta.2019.0358 2024-09-15T17:53:14+00:00 Benthic phosphorus cycling within the Eurasian marginal sea ice zone Tessin, Allyson März, Christian Kędra, Monika Matthiessen, Jens Morata, Nathalie Nairn, Michael O'Regan, Matt Peeken, Ilka Helmholtz Association H2020 Marie Skłodowska-Curie Actions Narodowe Centrum Nauki Norges Forskningsråd 2020 http://dx.doi.org/10.1098/rsta.2019.0358 https://royalsocietypublishing.org/doi/pdf/10.1098/rsta.2019.0358 https://royalsocietypublishing.org/doi/full-xml/10.1098/rsta.2019.0358 en eng The Royal Society https://royalsociety.org/-/media/journals/author/Licence-to-Publish-20062019-final.pdf https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences volume 378, issue 2181, page 20190358 ISSN 1364-503X 1471-2962 journal-article 2020 crroyalsociety https://doi.org/10.1098/rsta.2019.0358 2024-08-26T04:21:00Z The Arctic Ocean region is currently undergoing dramatic changes, which will likely alter the nutrient cycles that underpin Arctic marine ecosystems. Phosphate is a key limiting nutrient for marine life but gaps in our understanding of the Arctic phosphorus (P) cycle persist. In this study, we investigate the benthic burial and recycling of phosphorus using sediments and pore waters from the Eurasian Arctic margin, including the Barents Sea slope and the Yermak Plateau. Our results highlight that P is generally lost from sediments with depth during organic matter respiration. On the Yermak Plateau, remobilization of P results in a diffusive flux of P to the seafloor of between 96 and 261 µmol m −2 yr −1 . On the Barents Sea slope, diffusive fluxes of P are much larger (1736–2449 µmol m −2 yr −1 ), but these fluxes are into near-surface sediments rather than to the bottom waters. The difference in cycling on the Barents Sea slope is controlled by higher fluxes of fresh organic matter and active iron cycling. As changes in primary productivity, ocean circulation and glacial melt continue, benthic P cycling is likely to be altered with implications for P imported into the Arctic Ocean Basin. This article is part of the theme issue ‘The changing Arctic Ocean: consequences for biological communities, biogeochemical processes and ecosystem functioning’. Article in Journal/Newspaper Arctic Ocean Barents Sea Sea ice Yermak plateau The Royal Society Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 378 2181 20190358 |
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Open Polar |
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The Royal Society |
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crroyalsociety |
language |
English |
description |
The Arctic Ocean region is currently undergoing dramatic changes, which will likely alter the nutrient cycles that underpin Arctic marine ecosystems. Phosphate is a key limiting nutrient for marine life but gaps in our understanding of the Arctic phosphorus (P) cycle persist. In this study, we investigate the benthic burial and recycling of phosphorus using sediments and pore waters from the Eurasian Arctic margin, including the Barents Sea slope and the Yermak Plateau. Our results highlight that P is generally lost from sediments with depth during organic matter respiration. On the Yermak Plateau, remobilization of P results in a diffusive flux of P to the seafloor of between 96 and 261 µmol m −2 yr −1 . On the Barents Sea slope, diffusive fluxes of P are much larger (1736–2449 µmol m −2 yr −1 ), but these fluxes are into near-surface sediments rather than to the bottom waters. The difference in cycling on the Barents Sea slope is controlled by higher fluxes of fresh organic matter and active iron cycling. As changes in primary productivity, ocean circulation and glacial melt continue, benthic P cycling is likely to be altered with implications for P imported into the Arctic Ocean Basin. This article is part of the theme issue ‘The changing Arctic Ocean: consequences for biological communities, biogeochemical processes and ecosystem functioning’. |
author2 |
Helmholtz Association H2020 Marie Skłodowska-Curie Actions Narodowe Centrum Nauki Norges Forskningsråd |
format |
Article in Journal/Newspaper |
author |
Tessin, Allyson März, Christian Kędra, Monika Matthiessen, Jens Morata, Nathalie Nairn, Michael O'Regan, Matt Peeken, Ilka |
spellingShingle |
Tessin, Allyson März, Christian Kędra, Monika Matthiessen, Jens Morata, Nathalie Nairn, Michael O'Regan, Matt Peeken, Ilka Benthic phosphorus cycling within the Eurasian marginal sea ice zone |
author_facet |
Tessin, Allyson März, Christian Kędra, Monika Matthiessen, Jens Morata, Nathalie Nairn, Michael O'Regan, Matt Peeken, Ilka |
author_sort |
Tessin, Allyson |
title |
Benthic phosphorus cycling within the Eurasian marginal sea ice zone |
title_short |
Benthic phosphorus cycling within the Eurasian marginal sea ice zone |
title_full |
Benthic phosphorus cycling within the Eurasian marginal sea ice zone |
title_fullStr |
Benthic phosphorus cycling within the Eurasian marginal sea ice zone |
title_full_unstemmed |
Benthic phosphorus cycling within the Eurasian marginal sea ice zone |
title_sort |
benthic phosphorus cycling within the eurasian marginal sea ice zone |
publisher |
The Royal Society |
publishDate |
2020 |
url |
http://dx.doi.org/10.1098/rsta.2019.0358 https://royalsocietypublishing.org/doi/pdf/10.1098/rsta.2019.0358 https://royalsocietypublishing.org/doi/full-xml/10.1098/rsta.2019.0358 |
genre |
Arctic Ocean Barents Sea Sea ice Yermak plateau |
genre_facet |
Arctic Ocean Barents Sea Sea ice Yermak plateau |
op_source |
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences volume 378, issue 2181, page 20190358 ISSN 1364-503X 1471-2962 |
op_rights |
https://royalsociety.org/-/media/journals/author/Licence-to-Publish-20062019-final.pdf https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ |
op_doi |
https://doi.org/10.1098/rsta.2019.0358 |
container_title |
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences |
container_volume |
378 |
container_issue |
2181 |
container_start_page |
20190358 |
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1810295238605930496 |