Influence of invertebrate predators (Acariformes) on zooplankton
Feeding of different genus of <i>Acariformes (Piona, Limnesia, Arrhenurus)</i> has been studied in experimental conditions in the meso-euthrophic lake. These species did not consume as large (<i>Sida crystallina, Mesocyclops sp.</i>) as small (Ceriodaphia pulchella) zooplankton. The main consumed species was <i>Polyphemus pediculus</i>. Thereby, the water acarids can control the development of predator of first order and elongate the trophic chain.