- The vertical flux of marine snow particles significantly reduces atmospheric carbon dioxide concentration. In the mesopelagic zone, a large proportion of the organic carbon carried by sinking particles dissipates thereby escaping long term sequestration. Particle associated prokaryotes are largely responsible for such organic carbon loss. However, links between this important ecosystem flux and ecological processes such as community development of prokaryotes on different particle fractions (sinking vs. non-sinking) are yet virtually unknown. This prevents accurate predictions of mesopelagic organic carbon loss in response to changing ocean dynamics. Using combined measurements of prokaryotic heterotrophic production rates and species richness in the North Atlantic, we reveal that carbon loss rates and associated microbial richness are drastically different with particle fractions. Our results demonstrate a strong negative correlation between prokaryotic carbon losses and species richness. Such a trend may be related to prokaryotesThe vertical flux of marine snow particles significantly reduces atmospheric carbon dioxide concentration. In the mesopelagic zone, a large proportion of the organic carbon carried by sinking particles dissipates thereby escaping long term sequestration. Particle associated prokaryotes are largely responsible for such organic carbon loss. However, links between this important ecosystem flux and ecological processes such as community development of prokaryotes on different particle fractions (sinking vs. non-sinking) are yet virtually unknown. This prevents accurate predictions of mesopelagic organic carbon loss in response to changing ocean dynamics. Using combined measurements of prokaryotic heterotrophic production rates and species richness in the North Atlantic, we reveal that carbon loss rates and associated microbial richness are drastically different with particle fractions. Our results demonstrate a strong negative correlation between prokaryotic carbon losses and species richness. Such a trend may be related to prokaryotes detaching from fast-sinking particles constantly enriching non-sinking associated communities in the mesopelagic zone. Existing global scale data suggest this negative correlation is a widespread feature of mesopelagic microbes.…
MetadatenAuthor details: | Chloe M. J. BaumasORCiD, Frédéric A. C. Le MoigneORCiD, Marc Garel, Nagib Bhairy, Sophie Guasco, Virginie Riou, Fabrice Armougom, Hans-Peter GrossartORCiDGND, Christian TamburiniORCiD |
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DOI: | https://doi.org/10.1038/s41396-020-00880-z |
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ISSN: | 1751-7362 |
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ISSN: | 1751-7370 |
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Pubmed ID: | https://pubmed.ncbi.nlm.nih.gov/33452475 |
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Title of parent work (English): | The ISME journal : multidisciplinary journal of microbial ecology |
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Publisher: | Nature Publishing Group |
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Place of publishing: | Basingstoke |
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Publication type: | Article |
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Language: | English |
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Date of first publication: | 2021/01/15 |
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Publication year: | 2021 |
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Release date: | 2024/09/17 |
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Volume: | 15 |
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Issue: | 6 |
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Number of pages: | 14 |
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First page: | 1695 |
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Last Page: | 1708 |
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Funding institution: | Labex OT-Med Investissements d'Avenir, French Government project of the ANR, through the AMidex ROBIN projectFrench National Research Agency (ANR) [ANR-11LABEX-0061, ANR-11-IDEX-0001-02]; European Regional Development Fund (ERDF)European Commission; European ERDF Fund [116639417] |
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Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Biochemie und Biologie |
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DDC classification: | 5 Naturwissenschaften und Mathematik / 50 Naturwissenschaften / 500 Naturwissenschaften und Mathematik |
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Peer review: | Referiert |
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Publishing method: | Open Access / Hybrid Open-Access |
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License (German): | CC-BY - Namensnennung 4.0 International |
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