Important contribution of macroalgae to oceanic carbon sequestration
9 pages, 3 figures, 1 table, supplementary information https://doi.org/10.1038/s41561-019-0421-8.-- The data that support the findings of this study can be found in ref. (Tara Oceans metagenomes; https://doi.org/10.1038/sdata.2015.23), and ref. (Tara Oceans 18S rDNA V9 metabarcodes; https://doi.org/...
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Online Access: | http://hdl.handle.net/10261/192545 https://doi.org/10.1038/s41561-019-0421-8 https://doi.org/10.13039/501100004052 https://doi.org/10.13039/501100003329 https://doi.org/10.13039/501100011958 |
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ftcsic:oai:digital.csic.es:10261/192545 2024-02-11T10:08:38+01:00 Important contribution of macroalgae to oceanic carbon sequestration Ortega, Alejandra Geraldi, Nathan R. Alam, Intikhab Kamau, Allan A. Acinas, Silvia G. Logares, Ramiro Gasol, Josep M. Massana, Ramon Krause-Jensen, Dorte Duarte, Carlos M. Ministerio de Economía y Competitividad (España) Independent Research Fund Denmark King Abdullah University of Science and Technology 2019-09 http://hdl.handle.net/10261/192545 https://doi.org/10.1038/s41561-019-0421-8 https://doi.org/10.13039/501100004052 https://doi.org/10.13039/501100003329 https://doi.org/10.13039/501100011958 unknown Nature Publishing Group Preprint https://doi.org/10.1038/s41561-019-0421-8 Sí doi:10.1038/s41561-019-0421-8 issn: 1752-0894 e-issn: 1752-0908 Nature Geoscience 12: 748-754 (2019) http://hdl.handle.net/10261/192545 http://dx.doi.org/10.13039/501100004052 http://dx.doi.org/10.13039/501100003329 http://dx.doi.org/10.13039/501100011958 open artículo http://purl.org/coar/resource_type/c_6501 2019 ftcsic https://doi.org/10.1038/s41561-019-0421-810.13039/50110000405210.13039/50110000332910.13039/501100011958 2024-01-16T10:44:34Z 9 pages, 3 figures, 1 table, supplementary information https://doi.org/10.1038/s41561-019-0421-8.-- The data that support the findings of this study can be found in ref. (Tara Oceans metagenomes; https://doi.org/10.1038/sdata.2015.23), and ref. (Tara Oceans 18S rDNA V9 metabarcodes; https://doi.org/10.1126/science.1261605) and Zenodo (Malaspina metagenomes; https://doi.org/10.5281/zenodo.2596829) The role of macroalgae in Blue Carbon assessments has been controversial, partially due to uncertainties about the fate of exported macroalgae. Available evidence suggests that macroalgae are exported to reach the open ocean and the deep sea. Nevertheless, this evidence lacks systematic assessment. Here, we provide robust evidence of macroalgal export beyond coastal habitats. We used metagenomes and metabarcodes from the global expeditions Tara Oceans and Malaspina 2010 Circumnavigation. We discovered macroalgae worldwide at up to 5,000 km from coastal areas. We found 24 orders, most of which belong to the phylum Rhodophyta. The diversity of macroalgae was similar across oceanic regions, although the assemblage composition differed. The South Atlantic Ocean presented the highest macroalgal diversity, whereas the Red Sea was the least diverse region. The abundance of macroalgae sequences attenuated exponentially with depth at a rate of 37.3% km−1, and only 24% of macroalgae available at the surface were expected to reach the seafloor at a depth of 4,000 m. Our findings indicate that macroalgae are exported across the open and the deep ocean, suggesting that macroalgae may be an important source of allochthonous carbon, and their contribution should be considered in Blue Carbon assessments This research was supported by the Malaspina 2010 expedition, funded by the Spanish Ministry of Economy and Competitiveness through the Consolider-Ingenio programme to C.M.D. (reference: CSD2008-00077); CARMA, funded by the Independent Research Fund Denmark to D.K.-J. (reference: 8021-00222B); and King Abdullah University of Science ... Article in Journal/Newspaper South Atlantic Ocean Digital.CSIC (Spanish National Research Council) Nature Geoscience 12 9 748 754 |
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9 pages, 3 figures, 1 table, supplementary information https://doi.org/10.1038/s41561-019-0421-8.-- The data that support the findings of this study can be found in ref. (Tara Oceans metagenomes; https://doi.org/10.1038/sdata.2015.23), and ref. (Tara Oceans 18S rDNA V9 metabarcodes; https://doi.org/10.1126/science.1261605) and Zenodo (Malaspina metagenomes; https://doi.org/10.5281/zenodo.2596829) The role of macroalgae in Blue Carbon assessments has been controversial, partially due to uncertainties about the fate of exported macroalgae. Available evidence suggests that macroalgae are exported to reach the open ocean and the deep sea. Nevertheless, this evidence lacks systematic assessment. Here, we provide robust evidence of macroalgal export beyond coastal habitats. We used metagenomes and metabarcodes from the global expeditions Tara Oceans and Malaspina 2010 Circumnavigation. We discovered macroalgae worldwide at up to 5,000 km from coastal areas. We found 24 orders, most of which belong to the phylum Rhodophyta. The diversity of macroalgae was similar across oceanic regions, although the assemblage composition differed. The South Atlantic Ocean presented the highest macroalgal diversity, whereas the Red Sea was the least diverse region. The abundance of macroalgae sequences attenuated exponentially with depth at a rate of 37.3% km−1, and only 24% of macroalgae available at the surface were expected to reach the seafloor at a depth of 4,000 m. Our findings indicate that macroalgae are exported across the open and the deep ocean, suggesting that macroalgae may be an important source of allochthonous carbon, and their contribution should be considered in Blue Carbon assessments This research was supported by the Malaspina 2010 expedition, funded by the Spanish Ministry of Economy and Competitiveness through the Consolider-Ingenio programme to C.M.D. (reference: CSD2008-00077); CARMA, funded by the Independent Research Fund Denmark to D.K.-J. (reference: 8021-00222B); and King Abdullah University of Science ... |
author2 |
Ministerio de Economía y Competitividad (España) Independent Research Fund Denmark King Abdullah University of Science and Technology |
format |
Article in Journal/Newspaper |
author |
Ortega, Alejandra Geraldi, Nathan R. Alam, Intikhab Kamau, Allan A. Acinas, Silvia G. Logares, Ramiro Gasol, Josep M. Massana, Ramon Krause-Jensen, Dorte Duarte, Carlos M. |
spellingShingle |
Ortega, Alejandra Geraldi, Nathan R. Alam, Intikhab Kamau, Allan A. Acinas, Silvia G. Logares, Ramiro Gasol, Josep M. Massana, Ramon Krause-Jensen, Dorte Duarte, Carlos M. Important contribution of macroalgae to oceanic carbon sequestration |
author_facet |
Ortega, Alejandra Geraldi, Nathan R. Alam, Intikhab Kamau, Allan A. Acinas, Silvia G. Logares, Ramiro Gasol, Josep M. Massana, Ramon Krause-Jensen, Dorte Duarte, Carlos M. |
author_sort |
Ortega, Alejandra |
title |
Important contribution of macroalgae to oceanic carbon sequestration |
title_short |
Important contribution of macroalgae to oceanic carbon sequestration |
title_full |
Important contribution of macroalgae to oceanic carbon sequestration |
title_fullStr |
Important contribution of macroalgae to oceanic carbon sequestration |
title_full_unstemmed |
Important contribution of macroalgae to oceanic carbon sequestration |
title_sort |
important contribution of macroalgae to oceanic carbon sequestration |
publisher |
Nature Publishing Group |
publishDate |
2019 |
url |
http://hdl.handle.net/10261/192545 https://doi.org/10.1038/s41561-019-0421-8 https://doi.org/10.13039/501100004052 https://doi.org/10.13039/501100003329 https://doi.org/10.13039/501100011958 |
genre |
South Atlantic Ocean |
genre_facet |
South Atlantic Ocean |
op_relation |
Preprint https://doi.org/10.1038/s41561-019-0421-8 Sí doi:10.1038/s41561-019-0421-8 issn: 1752-0894 e-issn: 1752-0908 Nature Geoscience 12: 748-754 (2019) http://hdl.handle.net/10261/192545 http://dx.doi.org/10.13039/501100004052 http://dx.doi.org/10.13039/501100003329 http://dx.doi.org/10.13039/501100011958 |
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open |
op_doi |
https://doi.org/10.1038/s41561-019-0421-810.13039/50110000405210.13039/50110000332910.13039/501100011958 |
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Nature Geoscience |
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