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dc.contributor.authorTsiola, A.
dc.contributor.authorPitta, P.
dc.contributor.authorFodelianakis, Stylianos
dc.contributor.authorPete, R.
dc.contributor.authorMagiopoulos, I.
dc.contributor.authorMara, P.
dc.contributor.authorPsarra, S.
dc.contributor.authorTanaka, T.
dc.contributor.authorMostajir, B.
dc.date.accessioned2016-01-27T13:15:08Z
dc.date.available2016-01-27T13:15:08Z
dc.date.issued2015-12-01
dc.identifier.citationNutrient Limitation in Surface Waters of the Oligotrophic Eastern Mediterranean Sea: an Enrichment Microcosm Experiment 2015 Microbial Ecology
dc.identifier.issn0095-3628
dc.identifier.issn1432-184X
dc.identifier.pmid26626911
dc.identifier.doi10.1007/s00248-015-0713-5
dc.identifier.urihttp://hdl.handle.net/10754/594983
dc.description.abstractThe growth rates of planktonic microbes in the pelagic zone of the Eastern Mediterranean Sea are nutrient limited, but the type of limitation is still uncertain. During this study, we investigated the occurrence of N and P limitation among different groups of the prokaryotic and eukaryotic (pico-, nano-, and micro-) plankton using a microcosm experiment during stratified water column conditions in the Cretan Sea (Eastern Mediterranean). Microcosms were enriched with N and P (either solely or simultaneously), and the PO4 turnover time, prokaryotic heterotrophic activity, primary production, and the abundance of the different microbial components were measured. Flow cytometric and molecular fingerprint analyses showed that different heterotrophic prokaryotic groups were limited by different nutrients; total heterotrophic prokaryotic growth was limited by P, but only when both N and P were added, changes in community structure and cell size were detected. Phytoplankton were N and P co-limited, with autotrophic pico-eukaryotes being the exception as they increased even when only P was added after a 2-day time lag. The populations of Synechococcus and Prochlorococcus were highly competitive with each other; Prochlorococcus abundance increased during the first 2 days of P addition but kept increasing only when both N and P were added, whereas Synechococcus exhibited higher pigment content and increased in abundance 3 days after simultaneous N and P additions. Dinoflagellates also showed opportunistic behavior at simultaneous N and P additions, in contrast to diatoms and coccolithophores, which diminished in all incubations. High DNA content viruses, selective grazing, and the exhaustion of N sources probably controlled the populations of diatoms and coccolithophores.
dc.language.isoen
dc.publisherSpringer Nature
dc.relation.urlhttp://link.springer.com/10.1007/s00248-015-0713-5
dc.rightsThe final publication is available at Springer via http://dx.doi.org/10.1007/s00248-015-0713-5.
dc.subjectSynechococcus
dc.subjectProchlorococcus
dc.subjectHeterotrophic prokaryotes
dc.subjectViruses
dc.subjectViruses
dc.subjectEukaryotic phytoplankton
dc.titleNutrient Limitation in Surface Waters of the Oligotrophic Eastern Mediterranean Sea: an Enrichment Microcosm Experiment
dc.typeArticle
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Division
dc.identifier.journalMicrobial Ecology
dc.eprint.versionPost-print
dc.contributor.institutionInstitute of Oceanography, Hellenic Centre for Marine Research (HCMR), Ex American Base Gournes, P.O. Box 2214, 71003, Heraklion, Crete, Greece
dc.contributor.institutionBiology Department, Marine Ecology Laboratory, University of Crete, Heraklion, Crete, Greece
dc.contributor.institutionLaboratoire d’Ecologie des Systèmes Marins Côtiers (ECOSYM), CNRS–Université Montpellier 2 & 1–Ifremer–IRD, Montpellier, France
dc.contributor.institutionChemistry Department, Environmental Chemical Processes Laboratory, University of Crete, Heraklion, Crete, Greece
dc.contributor.institutionINSU-CNRS, Laboratoire d’Océanographie de Villefranche, Villefranche sur Mer cedex, France
dc.contributor.institutionUniversité Pierre et Marie Curie-Paris 6, Observatoire Océanologie de Villefranche, Villefranche sur Mer cedex, France
dc.contributor.institutionCentre d’Ecologie Marine Expérimentale MEDIMEER, Mediterranean Center for Marine Ecosystem Experimental Research, CNRS–Université Montpellier 2, Montpellier, Sète, France
dc.contributor.institutionMarine Biodiversity, Exploitation and Conservation (MARBEC), UMR 9190, CNRS–Université de Montpellier–IFREMER–IRD, Montpellier, France
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)
kaust.personFodelianakis, Stylianos
refterms.dateFOA2016-12-01T00:00:00Z
dc.date.published-online2015-12-01
dc.date.published-print2016-04


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