Hydrothermal vents trigger massive phytoplankton blooms in the Southern Ocean
Hydrothermal activity is significant in regulating the dynamics of trace elements in the ocean. Biogeochemical models suggest that hydrothermal iron might play an important role in the iron-depleted Southern Ocean by enhancing the biological pump. However, the ability of this mechanism to affect lar...
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ftpubmed:oai:pubmedcentral.nih.gov:6549147 2023-05-15T14:04:03+02:00 Hydrothermal vents trigger massive phytoplankton blooms in the Southern Ocean Ardyna, Mathieu Lacour, Léo Sergi, Sara d’Ovidio, Francesco Sallée, Jean-Baptiste Rembauville, Mathieu Blain, Stéphane Tagliabue, Alessandro Schlitzer, Reiner Jeandel, Catherine Arrigo, Kevin Robert Claustre, Hervé 2019-06-05 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6549147/ http://www.ncbi.nlm.nih.gov/pubmed/31165724 https://doi.org/10.1038/s41467-019-09973-6 en eng Nature Publishing Group UK http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6549147/ http://www.ncbi.nlm.nih.gov/pubmed/31165724 http://dx.doi.org/10.1038/s41467-019-09973-6 © The Author(s) 2019 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 2019 ftpubmed https://doi.org/10.1038/s41467-019-09973-6 2019-06-23T00:15:33Z Hydrothermal activity is significant in regulating the dynamics of trace elements in the ocean. Biogeochemical models suggest that hydrothermal iron might play an important role in the iron-depleted Southern Ocean by enhancing the biological pump. However, the ability of this mechanism to affect large-scale biogeochemistry and the pathways by which hydrothermal iron reach the surface layer have not been observationally constrained. Here we present the first observational evidence of upwelled hydrothermally influenced deep waters stimulating massive phytoplankton blooms in the Southern Ocean. Captured by profiling floats, two blooms were observed in the vicinity of the Antarctic Circumpolar Current, downstream of active hydrothermal vents along the Southwest Indian Ridge. These hotspots of biological activity are supported by mixing of hydrothermally sourced iron stimulated by flow-topography interactions. Such findings reveal the important role of hydrothermal vents on surface biogeochemistry, potentially fueling local hotspot sinks for atmospheric CO(2) by enhancing the biological pump. Text Antarc* Antarctic Southern Ocean PubMed Central (PMC) Antarctic Indian Southern Ocean The Antarctic Nature Communications 10 1 |
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Article Ardyna, Mathieu Lacour, Léo Sergi, Sara d’Ovidio, Francesco Sallée, Jean-Baptiste Rembauville, Mathieu Blain, Stéphane Tagliabue, Alessandro Schlitzer, Reiner Jeandel, Catherine Arrigo, Kevin Robert Claustre, Hervé Hydrothermal vents trigger massive phytoplankton blooms in the Southern Ocean |
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Hydrothermal activity is significant in regulating the dynamics of trace elements in the ocean. Biogeochemical models suggest that hydrothermal iron might play an important role in the iron-depleted Southern Ocean by enhancing the biological pump. However, the ability of this mechanism to affect large-scale biogeochemistry and the pathways by which hydrothermal iron reach the surface layer have not been observationally constrained. Here we present the first observational evidence of upwelled hydrothermally influenced deep waters stimulating massive phytoplankton blooms in the Southern Ocean. Captured by profiling floats, two blooms were observed in the vicinity of the Antarctic Circumpolar Current, downstream of active hydrothermal vents along the Southwest Indian Ridge. These hotspots of biological activity are supported by mixing of hydrothermally sourced iron stimulated by flow-topography interactions. Such findings reveal the important role of hydrothermal vents on surface biogeochemistry, potentially fueling local hotspot sinks for atmospheric CO(2) by enhancing the biological pump. |
format |
Text |
author |
Ardyna, Mathieu Lacour, Léo Sergi, Sara d’Ovidio, Francesco Sallée, Jean-Baptiste Rembauville, Mathieu Blain, Stéphane Tagliabue, Alessandro Schlitzer, Reiner Jeandel, Catherine Arrigo, Kevin Robert Claustre, Hervé |
author_facet |
Ardyna, Mathieu Lacour, Léo Sergi, Sara d’Ovidio, Francesco Sallée, Jean-Baptiste Rembauville, Mathieu Blain, Stéphane Tagliabue, Alessandro Schlitzer, Reiner Jeandel, Catherine Arrigo, Kevin Robert Claustre, Hervé |
author_sort |
Ardyna, Mathieu |
title |
Hydrothermal vents trigger massive phytoplankton blooms in the Southern Ocean |
title_short |
Hydrothermal vents trigger massive phytoplankton blooms in the Southern Ocean |
title_full |
Hydrothermal vents trigger massive phytoplankton blooms in the Southern Ocean |
title_fullStr |
Hydrothermal vents trigger massive phytoplankton blooms in the Southern Ocean |
title_full_unstemmed |
Hydrothermal vents trigger massive phytoplankton blooms in the Southern Ocean |
title_sort |
hydrothermal vents trigger massive phytoplankton blooms in the southern ocean |
publisher |
Nature Publishing Group UK |
publishDate |
2019 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6549147/ http://www.ncbi.nlm.nih.gov/pubmed/31165724 https://doi.org/10.1038/s41467-019-09973-6 |
geographic |
Antarctic Indian Southern Ocean The Antarctic |
geographic_facet |
Antarctic Indian Southern Ocean The Antarctic |
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Antarc* Antarctic Southern Ocean |
genre_facet |
Antarc* Antarctic Southern Ocean |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6549147/ http://www.ncbi.nlm.nih.gov/pubmed/31165724 http://dx.doi.org/10.1038/s41467-019-09973-6 |
op_rights |
© The Author(s) 2019 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/s41467-019-09973-6 |
container_title |
Nature Communications |
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10 |
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1 |
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1766274986707779584 |