Zooplankton induced changes in dissolved free amino acids and in production rates of freshwater bacteria

  title={Zooplankton induced changes in dissolved free amino acids and in production rates of freshwater bacteria},
  author={B. Riemann and N. O. J{\o}rgensen and W. Lampert and J. A. Fuhrman},
  journal={Microbial Ecology},
  • B. Riemann, N. O. Jørgensen, +1 author J. A. Fuhrman
  • Published 2005
  • Biology, Medicine
  • Microbial Ecology
  • This study examined the importance of zooplankton in the flux of dissolved free amino acids (DFAA) in the water and into bacteria. DFAA release rates were followed in laboratory grazing experiments usingDaphnia galeata andEudiaptomus graciloides as grazers, andScenedesmus acutus andSynechococcus elongatus as food sources. Except for minor initial peaks, DFAAs were released continuously during the first 2 hours and made up 6–12% (in one experiment 50%) of the calculated ingestion rates. During… CONTINUE READING
    20 Citations

    Figures, Tables, and Topics from this paper.

    Explore Further: Topics Discussed in This Paper

    Nitrogen metabolism by heterotrophic bacterial assemblages in Antarctic coastal waters
    • 50
    Fates of diatom carbon and trace elements by the grazing of a marine copepod
    • 18
    • PDF
    Bacterioplankton interactions with Daphnia and algae in experimental enclosures
    • 6
    Dissolved organic nitrogen: a dynamic participant in aquatic ecosystems
    • 471
    • PDF
    The role of ciliated protozoa in pelagic freshwater ecosystems
    • 155


    Measurements of diel rates of bacterial secondary production in aquatic environments.
    • 118
    • PDF
    Assessing biomass and production of bacteria in eutrophic lake mendota, wisconsin.
    • 104
    • PDF
    Bacterioplankton secondary production estimates for coastal waters of british columbia, antarctica, and california.
    • J. Fuhrman, F. Azam
    • Environmental Science, Medicine
    • Applied and environmental microbiology
    • 1980
    • 856
    • PDF