Cargando…

A Gulf Stream frontal eddy harbors a distinct microbiome compared to adjacent waters

Mesoscale oceanographic features, including eddies, have the potential to alter productivity and other biogeochemical rates in the ocean. Here, we examine the microbiome of a cyclonic, Gulf Stream frontal eddy, with a distinct origin and environmental parameters compared to surrounding waters, in or...

Descripción completa

Detalles Bibliográficos
Autores principales: Gronniger, Jessica L., Gray, Patrick C., Niebergall, Alexandria K., Johnson, Zackary I., Hunt, Dana E.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10635494/
https://www.ncbi.nlm.nih.gov/pubmed/37943816
http://dx.doi.org/10.1371/journal.pone.0293334
_version_ 1785133008206954496
author Gronniger, Jessica L.
Gray, Patrick C.
Niebergall, Alexandria K.
Johnson, Zackary I.
Hunt, Dana E.
author_facet Gronniger, Jessica L.
Gray, Patrick C.
Niebergall, Alexandria K.
Johnson, Zackary I.
Hunt, Dana E.
author_sort Gronniger, Jessica L.
collection PubMed
description Mesoscale oceanographic features, including eddies, have the potential to alter productivity and other biogeochemical rates in the ocean. Here, we examine the microbiome of a cyclonic, Gulf Stream frontal eddy, with a distinct origin and environmental parameters compared to surrounding waters, in order to better understand the processes dominating microbial community assembly in the dynamic coastal ocean. Our microbiome-based approach identified the eddy as distinct from the surround Gulf Stream waters. The eddy-associated microbial community occupied a larger area than identified by temperature and salinity alone, increasing the predicted extent of eddy-associated biogeochemical processes. While the eddy formed on the continental shelf, after two weeks both environmental parameters and microbiome composition of the eddy were most similar to the Gulf Stream, suggesting the effect of environmental filtering on community assembly or physical mixing with adjacent Gulf Stream waters. In spite of the potential for eddy-driven upwelling to introduce nutrients and stimulate primary production, eddy surface waters exhibit lower chlorophyll a along with a distinct and less even microbial community, compared to the Gulf Stream. At the population level, the eddy microbiome exhibited differences among the cyanobacteria (e.g. lower Trichodesmium and higher Prochlorococcus) and in the heterotrophic alpha Proteobacteria (e.g. lower relative abundances of specific SAR11 phylotypes) versus the Gulf Stream. However, better delineation of the relative roles of processes driving eddy community assembly will likely require following the eddy and surrounding waters since inception. Additionally, sampling throughout the water column could better clarify the contribution of these mesoscale features to primary production and carbon export in the oceans.
format Online
Article
Text
id pubmed-10635494
institution National Center for Biotechnology Information
language English
publishDate 2023
publisher Public Library of Science
record_format MEDLINE/PubMed
spelling pubmed-106354942023-11-10 A Gulf Stream frontal eddy harbors a distinct microbiome compared to adjacent waters Gronniger, Jessica L. Gray, Patrick C. Niebergall, Alexandria K. Johnson, Zackary I. Hunt, Dana E. PLoS One Research Article Mesoscale oceanographic features, including eddies, have the potential to alter productivity and other biogeochemical rates in the ocean. Here, we examine the microbiome of a cyclonic, Gulf Stream frontal eddy, with a distinct origin and environmental parameters compared to surrounding waters, in order to better understand the processes dominating microbial community assembly in the dynamic coastal ocean. Our microbiome-based approach identified the eddy as distinct from the surround Gulf Stream waters. The eddy-associated microbial community occupied a larger area than identified by temperature and salinity alone, increasing the predicted extent of eddy-associated biogeochemical processes. While the eddy formed on the continental shelf, after two weeks both environmental parameters and microbiome composition of the eddy were most similar to the Gulf Stream, suggesting the effect of environmental filtering on community assembly or physical mixing with adjacent Gulf Stream waters. In spite of the potential for eddy-driven upwelling to introduce nutrients and stimulate primary production, eddy surface waters exhibit lower chlorophyll a along with a distinct and less even microbial community, compared to the Gulf Stream. At the population level, the eddy microbiome exhibited differences among the cyanobacteria (e.g. lower Trichodesmium and higher Prochlorococcus) and in the heterotrophic alpha Proteobacteria (e.g. lower relative abundances of specific SAR11 phylotypes) versus the Gulf Stream. However, better delineation of the relative roles of processes driving eddy community assembly will likely require following the eddy and surrounding waters since inception. Additionally, sampling throughout the water column could better clarify the contribution of these mesoscale features to primary production and carbon export in the oceans. Public Library of Science 2023-11-09 /pmc/articles/PMC10635494/ /pubmed/37943816 http://dx.doi.org/10.1371/journal.pone.0293334 Text en © 2023 Gronniger et al https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Gronniger, Jessica L.
Gray, Patrick C.
Niebergall, Alexandria K.
Johnson, Zackary I.
Hunt, Dana E.
A Gulf Stream frontal eddy harbors a distinct microbiome compared to adjacent waters
title A Gulf Stream frontal eddy harbors a distinct microbiome compared to adjacent waters
title_full A Gulf Stream frontal eddy harbors a distinct microbiome compared to adjacent waters
title_fullStr A Gulf Stream frontal eddy harbors a distinct microbiome compared to adjacent waters
title_full_unstemmed A Gulf Stream frontal eddy harbors a distinct microbiome compared to adjacent waters
title_short A Gulf Stream frontal eddy harbors a distinct microbiome compared to adjacent waters
title_sort gulf stream frontal eddy harbors a distinct microbiome compared to adjacent waters
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10635494/
https://www.ncbi.nlm.nih.gov/pubmed/37943816
http://dx.doi.org/10.1371/journal.pone.0293334
work_keys_str_mv AT gronnigerjessical agulfstreamfrontaleddyharborsadistinctmicrobiomecomparedtoadjacentwaters
AT graypatrickc agulfstreamfrontaleddyharborsadistinctmicrobiomecomparedtoadjacentwaters
AT niebergallalexandriak agulfstreamfrontaleddyharborsadistinctmicrobiomecomparedtoadjacentwaters
AT johnsonzackaryi agulfstreamfrontaleddyharborsadistinctmicrobiomecomparedtoadjacentwaters
AT huntdanae agulfstreamfrontaleddyharborsadistinctmicrobiomecomparedtoadjacentwaters
AT gronnigerjessical gulfstreamfrontaleddyharborsadistinctmicrobiomecomparedtoadjacentwaters
AT graypatrickc gulfstreamfrontaleddyharborsadistinctmicrobiomecomparedtoadjacentwaters
AT niebergallalexandriak gulfstreamfrontaleddyharborsadistinctmicrobiomecomparedtoadjacentwaters
AT johnsonzackaryi gulfstreamfrontaleddyharborsadistinctmicrobiomecomparedtoadjacentwaters
AT huntdanae gulfstreamfrontaleddyharborsadistinctmicrobiomecomparedtoadjacentwaters