Abstract
The aim of research carried out was to describe the zonality and structure of zoopleuston
in shallow eutrophic reservoirs. Zoopleuston structure discovered in examined reservoirs was
quite different than in depression reservoirs and lakes on Łęczna-Włodawa Lakeland. It was related to
morphometry of reservoirs and plant richness of shallow litoral zone. Higher species richness in
the water/land contact zone was found which confirms previous studies, however, sometimes zoopleuston
abundance showed the opposite pattern. Most differences occurred in dominants composition
as in water/land contact zone and on the depth of 0.5 m dominated mainly by small species of
Heteroptera: Micronecta minutissima and Cymatia coleoptrata.
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