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dc.contributor.author
Bachmann, Jennifer
dc.contributor.author
Heimbach, Tabea
dc.contributor.author
Hassenrück, Christiane
dc.contributor.author
Kopprio, Germán Adolfo
dc.contributor.author
Iversen, Morten Hvitfeldt
dc.contributor.author
Grossart, Hans Peter
dc.contributor.author
Gärdes, Astrid
dc.date.available
2019-11-01T19:54:04Z
dc.date.issued
2018-11-23
dc.identifier.citation
Bachmann, Jennifer; Heimbach, Tabea; Hassenrück, Christiane; Kopprio, Germán Adolfo; Iversen, Morten Hvitfeldt; et al.; Environmental Drivers of Free-Living vs. Particle-Attached Bacterial Community Composition in the Mauritania Upwelling System; Frontiers Media S.A.; Frontiers in Microbiology; 9; 23-11-2018; 2836
dc.identifier.issn
1664-302X
dc.identifier.uri
http://hdl.handle.net/11336/87854
dc.description.abstract
Saharan dust input and seasonal upwelling along North-West Africa provide a model system for studying microbial processes related to the export and recycling of nutrients. This study offers the first molecular characterization of prokaryotic particle-attached (PA; >3.0 μm) and free-living (FL; 0.2-3.0 μm) players in this important ecosystem during August 2016. Environmental drivers for alpha-diversity, bacterial community composition, and differences between FL and PA fractions were identified. The ultra-oligotrophic waters off Senegal were dominated by Cyanobacteria while higher relative abundances of Alphaproteobacteria, Bacteroidetes, Verrucomicrobia, and Planctomycetes (known particle-degraders) occurred in the upwelling area. Temperature, proxy for different water masses, was the best predictor for changes in FL communities. PA community variation was best explained by temperature and ammonium. Bray Curtis dissimilarities between FL and PA were generally very high and correlated with temperature and salinity in surface waters. Greatest similarities between FL and PA occurred at the deep chlorophyll maximum, where bacterial substrate availability was likely highest. This indicates that environmental drivers do not only influence changes among FL and PA communities but also differences between them. This could provide an explanation for contradicting results obtained by different studies regarding the dissimilarity/similarity between FL and PA communities and their biogeochemical functions.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Frontiers Media S.A.
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by/2.5/ar/
dc.subject
16S RRNA ILLUMINA AMPLICON SEQUENCING
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ALPHA DIVERSITY
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BIODIVERSITY
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BRAY CURTIS DISSIMILARITY
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MICROBIAL ECOLOGY
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PROKARYOTES
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SALINITY
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TEMPERATURE
dc.subject.classification
Oceanografía, Hidrología, Recursos Hídricos
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Ciencias de la Tierra y relacionadas con el Medio Ambiente
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Environmental Drivers of Free-Living vs. Particle-Attached Bacterial Community Composition in the Mauritania Upwelling System
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-08-08T19:30:42Z
dc.journal.volume
9
dc.journal.pagination
2836
dc.journal.pais
Suiza
dc.journal.ciudad
Lausanne
dc.description.fil
Fil: Bachmann, Jennifer. Universitat Bremen; Alemania. Leibniz Centre for Tropical Marine Research; Alemania
dc.description.fil
Fil: Heimbach, Tabea. Leibniz Centre for Tropical Marine Research; Alemania. Universitat Bremen; Alemania. Max Plank Institute for Marine Microbiology; Alemania
dc.description.fil
Fil: Hassenrück, Christiane. Leibniz Centre for Tropical Marine Research; Alemania
dc.description.fil
Fil: Kopprio, Germán Adolfo. Leibniz Centre for Tropical Marine Research; Alemania. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Argentino de Oceanografía. Universidad Nacional del Sur. Instituto Argentino de Oceanografía; Argentina
dc.description.fil
Fil: Iversen, Morten Hvitfeldt. Universitat Bremen; Alemania. Alfred Wegener Institute for Polar and Marine Research; Alemania
dc.description.fil
Fil: Grossart, Hans Peter. Leibniz-Institute of Freshwater Ecology and Inland Fisheries; Alemania. University of Potsdam; Alemania
dc.description.fil
Fil: Gärdes, Astrid. Leibniz Centre for Tropical Marine Research; Alemania
dc.journal.title
Frontiers in Microbiology
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.frontiersin.org/article/10.3389/fmicb.2018.02836/full
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.3389/fmicb.2018.02836
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