Manganese co-limitation of phytoplankton growth and major nutrient drawdown in the Southern Ocean
Residual macronutrients in the surface Southern Ocean result from restricted biological utilization, caused by low wintertime irradiance, cold temperatures, and insufficient micronutrients. Variability in utilization alters oceanic CO(2) sequestration at glacial-interglacial timescales. The role for...
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ftpubmed:oai:pubmedcentral.nih.gov:7873070 2023-05-15T13:37:54+02:00 Manganese co-limitation of phytoplankton growth and major nutrient drawdown in the Southern Ocean Browning, Thomas J. Achterberg, Eric P. Engel, Anja Mawji, Edward 2021-02-09 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7873070/ http://www.ncbi.nlm.nih.gov/pubmed/33563991 https://doi.org/10.1038/s41467-021-21122-6 en eng Nature Publishing Group UK http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7873070/ http://www.ncbi.nlm.nih.gov/pubmed/33563991 http://dx.doi.org/10.1038/s41467-021-21122-6 © The Author(s) 2021 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 Nat Commun Article Text 2021 ftpubmed https://doi.org/10.1038/s41467-021-21122-6 2021-02-21T01:27:19Z Residual macronutrients in the surface Southern Ocean result from restricted biological utilization, caused by low wintertime irradiance, cold temperatures, and insufficient micronutrients. Variability in utilization alters oceanic CO(2) sequestration at glacial-interglacial timescales. The role for insufficient iron has been examined in detail, but manganese also has an essential function in photosynthesis and dissolved concentrations in the Southern Ocean can be strongly depleted. However, clear evidence for or against manganese limitation in this system is lacking. Here we present results from ten experiments distributed across Drake Passage. We found manganese (co-)limited phytoplankton growth and macronutrient consumption in central Drake Passage, whilst iron limitation was widespread nearer the South American and Antarctic continental shelves. Spatial patterns were reconciled with the different rates and timescales for removal of each element from seawater. Our results suggest an important role for manganese in modelling Southern Ocean productivity and understanding major nutrient drawdown in glacial periods. Text Antarc* Antarctic Drake Passage Southern Ocean PubMed Central (PMC) Antarctic Drake Passage Southern Ocean Nature Communications 12 1 |
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Article Browning, Thomas J. Achterberg, Eric P. Engel, Anja Mawji, Edward Manganese co-limitation of phytoplankton growth and major nutrient drawdown in the Southern Ocean |
topic_facet |
Article |
description |
Residual macronutrients in the surface Southern Ocean result from restricted biological utilization, caused by low wintertime irradiance, cold temperatures, and insufficient micronutrients. Variability in utilization alters oceanic CO(2) sequestration at glacial-interglacial timescales. The role for insufficient iron has been examined in detail, but manganese also has an essential function in photosynthesis and dissolved concentrations in the Southern Ocean can be strongly depleted. However, clear evidence for or against manganese limitation in this system is lacking. Here we present results from ten experiments distributed across Drake Passage. We found manganese (co-)limited phytoplankton growth and macronutrient consumption in central Drake Passage, whilst iron limitation was widespread nearer the South American and Antarctic continental shelves. Spatial patterns were reconciled with the different rates and timescales for removal of each element from seawater. Our results suggest an important role for manganese in modelling Southern Ocean productivity and understanding major nutrient drawdown in glacial periods. |
format |
Text |
author |
Browning, Thomas J. Achterberg, Eric P. Engel, Anja Mawji, Edward |
author_facet |
Browning, Thomas J. Achterberg, Eric P. Engel, Anja Mawji, Edward |
author_sort |
Browning, Thomas J. |
title |
Manganese co-limitation of phytoplankton growth and major nutrient drawdown in the Southern Ocean |
title_short |
Manganese co-limitation of phytoplankton growth and major nutrient drawdown in the Southern Ocean |
title_full |
Manganese co-limitation of phytoplankton growth and major nutrient drawdown in the Southern Ocean |
title_fullStr |
Manganese co-limitation of phytoplankton growth and major nutrient drawdown in the Southern Ocean |
title_full_unstemmed |
Manganese co-limitation of phytoplankton growth and major nutrient drawdown in the Southern Ocean |
title_sort |
manganese co-limitation of phytoplankton growth and major nutrient drawdown in the southern ocean |
publisher |
Nature Publishing Group UK |
publishDate |
2021 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7873070/ http://www.ncbi.nlm.nih.gov/pubmed/33563991 https://doi.org/10.1038/s41467-021-21122-6 |
geographic |
Antarctic Drake Passage Southern Ocean |
geographic_facet |
Antarctic Drake Passage Southern Ocean |
genre |
Antarc* Antarctic Drake Passage Southern Ocean |
genre_facet |
Antarc* Antarctic Drake Passage Southern Ocean |
op_source |
Nat Commun |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7873070/ http://www.ncbi.nlm.nih.gov/pubmed/33563991 http://dx.doi.org/10.1038/s41467-021-21122-6 |
op_rights |
© The Author(s) 2021 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/. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1038/s41467-021-21122-6 |
container_title |
Nature Communications |
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12 |
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1 |
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1766099416877367296 |