Zooplankton Feeding on the Nuisance Flagellate Gonyostomum semen

  title={Zooplankton Feeding on the Nuisance Flagellate Gonyostomum semen},
  author={Karin S. L. Johansson and Tobias Vrede and Karen Lebret and Richard K. Johnson},
  journal={PLoS ONE},
The large bloom-forming flagellate Gonyostomum semen has been hypothesized to be inedible to naturally occurring zooplankton due to its large cell size and ejection of long slimy threads (trichocysts) induced by physical stimulation. In a grazing experiment using radiolabelled algae and zooplankton collected from lakes with recurring blooms of G. semen and lakes that rarely experience blooms, we found that Eudiaptomus gracilis and Holopedium gibberum fed on G. semen at high rates, whereas… 

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