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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  
dc.subject
ALPHA DIVERSITY  
dc.subject
BIODIVERSITY  
dc.subject
BRAY CURTIS DISSIMILARITY  
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MICROBIAL ECOLOGY  
dc.subject
PROKARYOTES  
dc.subject
SALINITY  
dc.subject
TEMPERATURE  
dc.subject.classification
Oceanografía, Hidrología, Recursos Hídricos  
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Ciencias de la Tierra y relacionadas con el Medio Ambiente  
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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