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dc.contributor.author
Galí, M.
dc.contributor.author
Simó, R.
dc.contributor.author
Pérez, Gonzalo
dc.contributor.author
Ruiz Gonzalez, C.
dc.contributor.author
Sarmento, H.
dc.contributor.author
Royer, S. J.
dc.contributor.author
Fuentes Lema, A.
dc.contributor.author
Gasol, J. M.
dc.date.available
2016-07-28T17:52:11Z
dc.date.issued
2013-12
dc.identifier.citation
Galí, M.; Simó, R.; Pérez, Gonzalo; Ruiz Gonzalez, C.; Sarmento, H.; et al.; Differential response of planktonic primary, bacterial, and dimethylsulfide production rates to static vs. dynamic light exposure in upper mixed-layer summer sea waters; Copernicus Publications; Biogeosciences; 10; 12-2013; 7983-7998
dc.identifier.issn
1726-4170
dc.identifier.uri
http://hdl.handle.net/11336/6752
dc.description.abstract
Microbial plankton experience short-term fluctuations in total solar irradiance and in its spectral composition as they are vertically moved by turbulence in the oceanic upper mixed layer (UML). The fact that the light exposure is not static but dynamic may have important consequences for biogeochemical processes and ocean-atmosphere fluxes. However, most biogeochemical processes other than primary production, like bacterial production or dimethylsulfide (DMS) production, are seldom measured in sunlight and even less often in dynamic light fields. We conducted four experiments in oligotrophic summer stratified Mediterranean waters, where a sample from the UML was incubated in ultraviolet (UV)-transparent bottles at three fixed depths within the UML and on a vertically moving basket across the same depth range. We assessed the response of the phyto- and bacterioplankton community with physiological indicators based on flow cytometry singe-cell measurements, fast repetition rate fluorometry (FRRf), phytoplankton pigment concentrations and particulate light absorption. Dynamic light exposure caused a subtle disruption of the photoinhibition and photoacclimation processes associated with ultraviolet radiation (UVR), which slightly alleviated bacterial photoinhibition but did not favor primary production. Gross DMS production (GPDMS) decreased sharply with depth in parallel to shortwave UVR, and displayed a dose-dependent response that mixing did not significantly disrupt. To our knowledge, we provide the first measurements of GPDMS under in situ UV-inclusive optical conditions.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Copernicus Publications
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by/2.5/ar/
dc.subject
Primary Procuction
dc.subject
Bacterial Production
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Dimethylsulfide Production
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Mixed-Layer Summer Sea
dc.subject.classification
Biología Marina, Limnología
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Ciencias Biológicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Differential response of planktonic primary, bacterial, and dimethylsulfide production rates to static vs. dynamic light exposure in upper mixed-layer summer sea waters
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2016-07-22T18:51:51Z
dc.identifier.eissn
1726-4189
dc.journal.volume
10
dc.journal.pagination
7983-7998
dc.journal.pais
Alemania
dc.journal.ciudad
Gottingen
dc.description.fil
Fil: Galí, M.. Consejo Superior de Investigaciones Científicas. Institut de Ciències del Mar; España
dc.description.fil
Fil: Simó, R.. Consejo Superior de Investigaciones Científicas. Institut de Ciències del Mar; España
dc.description.fil
Fil: Pérez, Gonzalo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Instituto de Investigaciones Biotecnológicas - Instituto Tecnológico Chascomús. Instituto de Investigaciones Biotecnológicas (sede Chascomús); Argentina
dc.description.fil
Fil: Ruiz Gonzalez, C.. Consejo Superior de Investigaciones Científicas. Institut de Ciències del Mar; España
dc.description.fil
Fil: Sarmento, H.. Consejo Superior de Investigaciones Científicas. Institut de Ciències del Mar; España
dc.description.fil
Fil: Royer, S. J.. Consejo Superior de Investigaciones Científicas. Institut de Ciències del Mar; España
dc.description.fil
Fil: Fuentes Lema, A.. Facultade de Ciencias do Mar. Departamento de Ecoloxía e Bioloxía Animal; España
dc.description.fil
Fil: Gasol, J. M.. Consejo Superior de Investigaciones Científicas. Institut de Ciències del Mar; España
dc.journal.title
Biogeosciences
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.biogeosciences.net/10/7983/2013/
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/10.5194/bg-10-7983-2013
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.5194/bg-10-7983-2013


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