Investigating the microbial ecology of coastal hotspots of marine nitrogen fixation in the western North Atlantic
Variation in the microbial cycling of nutrients and carbon in the ocean is an emergent property of complex planktonic communities. While recent findings have considerably expanded our understanding of the diversity and distribution of nitrogen (N2) fixing marine diazotrophs, knowledge gaps remain re...
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fttriple:oai:gotriple.eu:10670/1.6n7o09 2023-05-15T17:30:20+02:00 Investigating the microbial ecology of coastal hotspots of marine nitrogen fixation in the western North Atlantic Wang, Seaver Tang, Weiyi Delage, Erwan Gifford, Scott Whitby, Hannah González, Aridane G. Eveillard, Damien Planquette, Helene Cassar, Nicolas https://doi.org/10.1038/s41598-021-84969-1 https://archimer.ifremer.fr/doc/00685/79677/82454.pdf https://archimer.ifremer.fr/doc/00685/79677/82455.docx en eng Springer Science and Business Media LLC doi:10.1038/s41598-021-84969-1 10670/1.6n7o09 https://archimer.ifremer.fr/doc/00685/79677/82454.pdf https://archimer.ifremer.fr/doc/00685/79677/82455.docx other Archimer, archive institutionnelle de l'Ifremer Scientific Reports (2045-2322) (Springer Science and Business Media LLC), 2021-03 , Vol. 11 , N. 1 , P. 5508 (14p.) envir geo Text https://vocabularies.coar-repositories.org/resource_types/c_18cf/ fttriple https://doi.org/10.1038/s41598-021-84969-1 2023-01-22T17:44:03Z Variation in the microbial cycling of nutrients and carbon in the ocean is an emergent property of complex planktonic communities. While recent findings have considerably expanded our understanding of the diversity and distribution of nitrogen (N2) fixing marine diazotrophs, knowledge gaps remain regarding ecological interactions between diazotrophs and other community members. Using quantitative 16S and 18S V4 rDNA amplicon sequencing, we surveyed eukaryotic and prokaryotic microbial communities from samples collected in August 2016 and 2017 across the Western North Atlantic. Leveraging and significantly expanding an earlier published 2015 molecular dataset, we examined microbial community structure and ecological co-occurrence relationships associated with intense hotspots of N2 fixation previously reported at sites off the Southern New England Shelf and Mid-Atlantic Bight. Overall, we observed a negative relationship between eukaryotic diversity and both N2 fixation and net community production (NCP). Maximum N2 fixation rates occurred at sites with high abundances of mixotrophic stramenopiles, notably Chrysophyceae. Network analysis revealed such stramenopiles to be keystone taxa alongside the haptophyte diazotroph host Braarudosphaera bigelowii and chlorophytes. Our findings highlight an intriguing relationship between marine stramenopiles and high N2 fixation coastal sites. Text North Atlantic Unknown Scientific Reports 11 1 |
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envir geo Wang, Seaver Tang, Weiyi Delage, Erwan Gifford, Scott Whitby, Hannah González, Aridane G. Eveillard, Damien Planquette, Helene Cassar, Nicolas Investigating the microbial ecology of coastal hotspots of marine nitrogen fixation in the western North Atlantic |
topic_facet |
envir geo |
description |
Variation in the microbial cycling of nutrients and carbon in the ocean is an emergent property of complex planktonic communities. While recent findings have considerably expanded our understanding of the diversity and distribution of nitrogen (N2) fixing marine diazotrophs, knowledge gaps remain regarding ecological interactions between diazotrophs and other community members. Using quantitative 16S and 18S V4 rDNA amplicon sequencing, we surveyed eukaryotic and prokaryotic microbial communities from samples collected in August 2016 and 2017 across the Western North Atlantic. Leveraging and significantly expanding an earlier published 2015 molecular dataset, we examined microbial community structure and ecological co-occurrence relationships associated with intense hotspots of N2 fixation previously reported at sites off the Southern New England Shelf and Mid-Atlantic Bight. Overall, we observed a negative relationship between eukaryotic diversity and both N2 fixation and net community production (NCP). Maximum N2 fixation rates occurred at sites with high abundances of mixotrophic stramenopiles, notably Chrysophyceae. Network analysis revealed such stramenopiles to be keystone taxa alongside the haptophyte diazotroph host Braarudosphaera bigelowii and chlorophytes. Our findings highlight an intriguing relationship between marine stramenopiles and high N2 fixation coastal sites. |
format |
Text |
author |
Wang, Seaver Tang, Weiyi Delage, Erwan Gifford, Scott Whitby, Hannah González, Aridane G. Eveillard, Damien Planquette, Helene Cassar, Nicolas |
author_facet |
Wang, Seaver Tang, Weiyi Delage, Erwan Gifford, Scott Whitby, Hannah González, Aridane G. Eveillard, Damien Planquette, Helene Cassar, Nicolas |
author_sort |
Wang, Seaver |
title |
Investigating the microbial ecology of coastal hotspots of marine nitrogen fixation in the western North Atlantic |
title_short |
Investigating the microbial ecology of coastal hotspots of marine nitrogen fixation in the western North Atlantic |
title_full |
Investigating the microbial ecology of coastal hotspots of marine nitrogen fixation in the western North Atlantic |
title_fullStr |
Investigating the microbial ecology of coastal hotspots of marine nitrogen fixation in the western North Atlantic |
title_full_unstemmed |
Investigating the microbial ecology of coastal hotspots of marine nitrogen fixation in the western North Atlantic |
title_sort |
investigating the microbial ecology of coastal hotspots of marine nitrogen fixation in the western north atlantic |
publisher |
Springer Science and Business Media LLC |
url |
https://doi.org/10.1038/s41598-021-84969-1 https://archimer.ifremer.fr/doc/00685/79677/82454.pdf https://archimer.ifremer.fr/doc/00685/79677/82455.docx |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Archimer, archive institutionnelle de l'Ifremer Scientific Reports (2045-2322) (Springer Science and Business Media LLC), 2021-03 , Vol. 11 , N. 1 , P. 5508 (14p.) |
op_relation |
doi:10.1038/s41598-021-84969-1 10670/1.6n7o09 https://archimer.ifremer.fr/doc/00685/79677/82454.pdf https://archimer.ifremer.fr/doc/00685/79677/82455.docx |
op_rights |
other |
op_doi |
https://doi.org/10.1038/s41598-021-84969-1 |
container_title |
Scientific Reports |
container_volume |
11 |
container_issue |
1 |
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1766126683836907520 |