Revisiting the distribution of oceanic N2 fixation and estimating diazotrophic contribution to marine production
Marine N2 fixation supports a significant portion of oceanic primary production by making N2 bioavailable to planktonic communities, in the process influencing atmosphere-ocean carbon fluxes and our global climate. However, the geographical distribution and controlling factors of marine N2 fixation...
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ftpubmed:oai:pubmedcentral.nih.gov:6381160 2023-05-15T17:32:54+02:00 Revisiting the distribution of oceanic N2 fixation and estimating diazotrophic contribution to marine production Tang, Weiyi Wang, Seaver Fonseca-Batista, Debany Dehairs, Frank Gifford, Scott Gonzalez, Aridane G. Gallinari, Morgane Planquette, Hélène Sarthou, Géraldine Cassar, Nicolas 2019-02-19 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6381160/ http://www.ncbi.nlm.nih.gov/pubmed/30783106 https://doi.org/10.1038/s41467-019-08640-0 en eng Nature Publishing Group UK http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6381160/ http://www.ncbi.nlm.nih.gov/pubmed/30783106 http://dx.doi.org/10.1038/s41467-019-08640-0 © 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/s41467-019-08640-0 2019-02-24T01:21:38Z Marine N2 fixation supports a significant portion of oceanic primary production by making N2 bioavailable to planktonic communities, in the process influencing atmosphere-ocean carbon fluxes and our global climate. However, the geographical distribution and controlling factors of marine N2 fixation remain elusive largely due to sparse observations. Here we present unprecedented high-resolution underway N2 fixation estimates across over 6000 kilometers of the western North Atlantic. Unexpectedly, we find increasing N2 fixation rates from the oligotrophic Sargasso Sea to North America coastal waters, driven primarily by cyanobacterial diazotrophs. N2 fixation is best correlated to phosphorus availability and chlorophyll-a concentration. Globally, intense N2 fixation activity in the coastal oceans is validated by a meta-analysis of published observations and we estimate the annual coastal N2 fixation flux to be 16.7 Tg N. This study broadens the biogeography of N2 fixation, highlights the interplay of regulating factors, and reveals thriving diazotrophic communities in coastal waters with potential significance to the global nitrogen and carbon cycles. Text North Atlantic PubMed Central (PMC) Nature Communications 10 1 |
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Article Tang, Weiyi Wang, Seaver Fonseca-Batista, Debany Dehairs, Frank Gifford, Scott Gonzalez, Aridane G. Gallinari, Morgane Planquette, Hélène Sarthou, Géraldine Cassar, Nicolas Revisiting the distribution of oceanic N2 fixation and estimating diazotrophic contribution to marine production |
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Marine N2 fixation supports a significant portion of oceanic primary production by making N2 bioavailable to planktonic communities, in the process influencing atmosphere-ocean carbon fluxes and our global climate. However, the geographical distribution and controlling factors of marine N2 fixation remain elusive largely due to sparse observations. Here we present unprecedented high-resolution underway N2 fixation estimates across over 6000 kilometers of the western North Atlantic. Unexpectedly, we find increasing N2 fixation rates from the oligotrophic Sargasso Sea to North America coastal waters, driven primarily by cyanobacterial diazotrophs. N2 fixation is best correlated to phosphorus availability and chlorophyll-a concentration. Globally, intense N2 fixation activity in the coastal oceans is validated by a meta-analysis of published observations and we estimate the annual coastal N2 fixation flux to be 16.7 Tg N. This study broadens the biogeography of N2 fixation, highlights the interplay of regulating factors, and reveals thriving diazotrophic communities in coastal waters with potential significance to the global nitrogen and carbon cycles. |
format |
Text |
author |
Tang, Weiyi Wang, Seaver Fonseca-Batista, Debany Dehairs, Frank Gifford, Scott Gonzalez, Aridane G. Gallinari, Morgane Planquette, Hélène Sarthou, Géraldine Cassar, Nicolas |
author_facet |
Tang, Weiyi Wang, Seaver Fonseca-Batista, Debany Dehairs, Frank Gifford, Scott Gonzalez, Aridane G. Gallinari, Morgane Planquette, Hélène Sarthou, Géraldine Cassar, Nicolas |
author_sort |
Tang, Weiyi |
title |
Revisiting the distribution of oceanic N2 fixation and estimating diazotrophic contribution to marine production |
title_short |
Revisiting the distribution of oceanic N2 fixation and estimating diazotrophic contribution to marine production |
title_full |
Revisiting the distribution of oceanic N2 fixation and estimating diazotrophic contribution to marine production |
title_fullStr |
Revisiting the distribution of oceanic N2 fixation and estimating diazotrophic contribution to marine production |
title_full_unstemmed |
Revisiting the distribution of oceanic N2 fixation and estimating diazotrophic contribution to marine production |
title_sort |
revisiting the distribution of oceanic n2 fixation and estimating diazotrophic contribution to marine production |
publisher |
Nature Publishing Group UK |
publishDate |
2019 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6381160/ http://www.ncbi.nlm.nih.gov/pubmed/30783106 https://doi.org/10.1038/s41467-019-08640-0 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6381160/ http://www.ncbi.nlm.nih.gov/pubmed/30783106 http://dx.doi.org/10.1038/s41467-019-08640-0 |
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/. |
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CC-BY |
op_doi |
https://doi.org/10.1038/s41467-019-08640-0 |
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Nature Communications |
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10 |
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