Photosynthetic characteristics of the phytoplankton in the Scheldt estuary: community and single-cell fluorescence measurements

N.A. Dijkman, J.C. Kromkamp

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    Abstract

    Estuaries present a very dynamic environment for phytoplankton with large changes in salinity occurring over relatively short distances, usually with high turbidity. We investigated the photosynthetic characteristics of phytoplankton in the Scheldt estuary (Belgium and the Netherlands) along a salinity gradient using community and single-cell fluorescence measurements. Single-cell fluorescence measurements offer the opportunity to study differences between species that were formerly possible only using uni-algal cultures. The objective was to study differences in the photochemical efficiency of photosystem II (Fv/Fm) between different species or different genera (when identification to the species level was not possible) and to investigate the effect of salinity on individual species. The difference in Fv/Fm between species was small, but often significant (ANOVA, p 
    Original languageEnglish
    Pages (from-to)425-434
    JournalEuropean Journal of Phycology
    Volume41
    Issue number4
    DOIs
    Publication statusPublished - 2006

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