Eukaryotic and cyanobacterial communities associated with marine snow particles in the oligotrophic Sargasso Sea

Abstract Marine snow aggregates represent heterogeneous agglomerates of dead and living organic matter. Composition is decisive for their sinking rates, and thereby for carbon flux to the deep sea. For oligotrophic oceans, information on aggregate composition is particularly sparse. To address this,...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Regitze B. C. Lundgreen, Cornelia Jaspers, Sachia J. Traving, Daniel J. Ayala, Fabien Lombard, Hans-Peter Grossart, Torkel G. Nielsen, Peter Munk, Lasse Riemann
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2019
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/c0aced7070054597a5005e9eceb9aa13
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:c0aced7070054597a5005e9eceb9aa13
record_format	dspace
spelling	oai:doaj.org-article:c0aced7070054597a5005e9eceb9aa132021-12-02T15:09:24ZEukaryotic and cyanobacterial communities associated with marine snow particles in the oligotrophic Sargasso Sea10.1038/s41598-019-45146-72045-2322https://doaj.org/article/c0aced7070054597a5005e9eceb9aa132019-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-019-45146-7https://doaj.org/toc/2045-2322Abstract Marine snow aggregates represent heterogeneous agglomerates of dead and living organic matter. Composition is decisive for their sinking rates, and thereby for carbon flux to the deep sea. For oligotrophic oceans, information on aggregate composition is particularly sparse. To address this, the taxonomic composition of aggregates collected from the subtropical and oligotrophic Sargasso Sea (Atlantic Ocean) was characterized by 16S and 18S rRNA gene sequencing. Taxonomy assignment was aided by a collection of the contemporary plankton community consisting of 75 morphologically and genetically identified plankton specimens. The diverse rRNA gene reads of marine snow aggregates, not considering Trichodesmium puffs, were dominated by copepods (52%), cnidarians (21%), radiolarians (11%), and alveolates (8%), with sporadic contributions by cyanobacteria, suggesting a different aggregate composition than in eutrophic regions. Composition linked significantly with sampling location but not to any measured environmental parameters or plankton biomass composition. Nevertheless, indicator and network analyses identified key roles of a few rare taxa. This points to complex regulation of aggregate composition, conceivably affected by the environment and plankton characteristics. The extent to which this has implications for particle densities, and consequently for sinking rates and carbon sequestration in oligotrophic waters, needs further interrogation.Regitze B. C. LundgreenCornelia JaspersSachia J. TravingDaniel J. AyalaFabien LombardHans-Peter GrossartTorkel G. NielsenPeter MunkLasse RiemannNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 9, Iss 1, Pp 1-12 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Regitze B. C. Lundgreen Cornelia Jaspers Sachia J. Traving Daniel J. Ayala Fabien Lombard Hans-Peter Grossart Torkel G. Nielsen Peter Munk Lasse Riemann Eukaryotic and cyanobacterial communities associated with marine snow particles in the oligotrophic Sargasso Sea
description	Abstract Marine snow aggregates represent heterogeneous agglomerates of dead and living organic matter. Composition is decisive for their sinking rates, and thereby for carbon flux to the deep sea. For oligotrophic oceans, information on aggregate composition is particularly sparse. To address this, the taxonomic composition of aggregates collected from the subtropical and oligotrophic Sargasso Sea (Atlantic Ocean) was characterized by 16S and 18S rRNA gene sequencing. Taxonomy assignment was aided by a collection of the contemporary plankton community consisting of 75 morphologically and genetically identified plankton specimens. The diverse rRNA gene reads of marine snow aggregates, not considering Trichodesmium puffs, were dominated by copepods (52%), cnidarians (21%), radiolarians (11%), and alveolates (8%), with sporadic contributions by cyanobacteria, suggesting a different aggregate composition than in eutrophic regions. Composition linked significantly with sampling location but not to any measured environmental parameters or plankton biomass composition. Nevertheless, indicator and network analyses identified key roles of a few rare taxa. This points to complex regulation of aggregate composition, conceivably affected by the environment and plankton characteristics. The extent to which this has implications for particle densities, and consequently for sinking rates and carbon sequestration in oligotrophic waters, needs further interrogation.
format	article
author	Regitze B. C. Lundgreen Cornelia Jaspers Sachia J. Traving Daniel J. Ayala Fabien Lombard Hans-Peter Grossart Torkel G. Nielsen Peter Munk Lasse Riemann
author_facet	Regitze B. C. Lundgreen Cornelia Jaspers Sachia J. Traving Daniel J. Ayala Fabien Lombard Hans-Peter Grossart Torkel G. Nielsen Peter Munk Lasse Riemann
author_sort	Regitze B. C. Lundgreen
title	Eukaryotic and cyanobacterial communities associated with marine snow particles in the oligotrophic Sargasso Sea
title_short	Eukaryotic and cyanobacterial communities associated with marine snow particles in the oligotrophic Sargasso Sea
title_full	Eukaryotic and cyanobacterial communities associated with marine snow particles in the oligotrophic Sargasso Sea
title_fullStr	Eukaryotic and cyanobacterial communities associated with marine snow particles in the oligotrophic Sargasso Sea
title_full_unstemmed	Eukaryotic and cyanobacterial communities associated with marine snow particles in the oligotrophic Sargasso Sea
title_sort	eukaryotic and cyanobacterial communities associated with marine snow particles in the oligotrophic sargasso sea
publisher	Nature Portfolio
publishDate	2019
url	https://doaj.org/article/c0aced7070054597a5005e9eceb9aa13
work_keys_str_mv	AT regitzebclundgreen eukaryoticandcyanobacterialcommunitiesassociatedwithmarinesnowparticlesintheoligotrophicsargassosea AT corneliajaspers eukaryoticandcyanobacterialcommunitiesassociatedwithmarinesnowparticlesintheoligotrophicsargassosea AT sachiajtraving eukaryoticandcyanobacterialcommunitiesassociatedwithmarinesnowparticlesintheoligotrophicsargassosea AT danieljayala eukaryoticandcyanobacterialcommunitiesassociatedwithmarinesnowparticlesintheoligotrophicsargassosea AT fabienlombard eukaryoticandcyanobacterialcommunitiesassociatedwithmarinesnowparticlesintheoligotrophicsargassosea AT hanspetergrossart eukaryoticandcyanobacterialcommunitiesassociatedwithmarinesnowparticlesintheoligotrophicsargassosea AT torkelgnielsen eukaryoticandcyanobacterialcommunitiesassociatedwithmarinesnowparticlesintheoligotrophicsargassosea AT petermunk eukaryoticandcyanobacterialcommunitiesassociatedwithmarinesnowparticlesintheoligotrophicsargassosea AT lasseriemann eukaryoticandcyanobacterialcommunitiesassociatedwithmarinesnowparticlesintheoligotrophicsargassosea
_version_	1718387837293821952

Eukaryotic and cyanobacterial communities associated with marine snow particles in the oligotrophic Sargasso Sea

Ejemplares similares