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The World of Protozoa, Rotifera, Nematoda and Oligochaeta

Ref ID : 1492

H. Klimowicz; Rotifers of the near bottom zone of Lakes Mikolajskie and Taltowisko. Polskie Archiwum Hydrobiologii (Pol.Arch.Hydrobiol.) 19(2):167-178, 1972

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Evidence is supplied that near the lake bottom the benthic rotifers species are autochthonous, whereas eurytopic and planktonic ones immigrate from other lake zones chiefly from epilimnion. During the warm season the quantitative and qualitative species composition of rotifers over lake bottom is affected mainly by eurytopic and planktonic species. The number of benthic species does not alter considerably during the research period. The number of species and abundance of individuals in the near-to-bottom zone decreases with increasing depth.