Annual cycle of protozooplankton (ciliates, flagellates and sarcodines) in relation to phyto- and metazooplankton in Lake Neumühler See (Mecklenburg, Germany)

The seasonal changes of the abundance and biomass of protozooplankton were investigated by a live-counting technique in the mesoeutrophic Lake Neumuhler See. In addition, the biomass of metazoans and phytoplankton was studied. During the annual cycle, the percentage contribution of the different protozoan groups changed significantly. Ciliates dominated the biomass in late spring, summer and autumn, heterotrophic nanoflagellates (