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dc.contributor.authorMaselli, Maira
dc.contributor.authorAltenburger, Andreas
dc.contributor.authorStoecker, Diane K.
dc.contributor.authorHansen, Per Juel
dc.date.accessioned2020-09-18T10:41:17Z
dc.date.available2020-09-18T10:41:17Z
dc.date.issued2020-09-07
dc.description.abstractCiliates represent an important trophic link between nanoplankton and mesoplankton. Many species acquire functional chloroplasts from photosynthetic prey, being thus mixotrophs. Little is known about which algae they exploit, and of the relevance of inorganic carbon assimilation to their metabolism. To get insights into these aspects, laboratory cultures of three mixotrophic <i>Strombidium</i> spp. were established and 35 photosynthetic algal species were tested as prey. The relative contributions of ingestion and photosynthesis to total carbon uptake were determined, and responses to prey starvation were studied. Ciliate growth was supported by algal species in the 2–12 μm size range, with cryptophytes and chlorophytes being the best prey types. Inorganic carbon incorporation was only quantitatively important when prey concentration was low (3–100 μgCL<sup>−1</sup>), when it led to increased gross growth efficiencies. Chla specific inorganic carbon uptake rates were reduced by 60–90% compared to that of the photosynthetic prey. Inorganic carbon uptake alone could not sustain survival of cultures and ciliate populations declined by 25–30% during 5 days of starvation. The results suggest that mixotrophy in <i>Strombidium</i> spp. may substantially bolster the efficiency of trophic transfer when biomass of small primary producers is low.en_US
dc.descriptionThis is a pre-copyedited, author-produced version of an article accepted for publication in Journal of Plankton Research following peer review. The version of record Maselli, M., Altenburger, A., Stoecker, D. K. & Hansen, P. J. (2020). Ecophysiological traits of mixotrophic Strombidium spp. <i>Journal of Plankton Research, 42</i>(5), 485-496 is available online at: <a href=https://doi.org/10.1093/plankt/fbaa041>https://doi.org/10.1093/plankt/fbaa041</a>.en_US
dc.identifier.citationMaselli, Altenburger A, Stoecker DK, Hansen PJ. Ecophysiological traits of mixotrophic Strombidium spp. Journal of Plankton Research. 2020;42(5):485-496en_US
dc.identifier.cristinIDFRIDAID 1829278
dc.identifier.doihttps://doi.org/10.1093/plankt/fbaa041
dc.identifier.issn0142-7873
dc.identifier.issn1464-3774
dc.identifier.urihttps://hdl.handle.net/10037/19430
dc.language.isoengen_US
dc.publisherOxford University Press (OUP)en_US
dc.relation.journalJournal of Plankton Research
dc.relation.urihttps://academic.oup.com/plankt/article/42/5/485/5902330
dc.rights.accessRightsopenAccessen_US
dc.rights.holderCopyright 2020 The Author(s)en_US
dc.subjectVDP::Mathematics and natural science: 400en_US
dc.subjectVDP::Matematikk og Naturvitenskap: 400en_US
dc.titleEcophysiological traits of mixotrophic Strombidium sppen_US
dc.type.versionacceptedVersionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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