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ZOOPLANKTON OF RESERVOIRS OF THE SMALL POLISSYA
MIXED FOREST ECOSYSTEMS
Î. ²vanets
Ivan Franko National University of L'viv,
Hrushevskoho st.4, L'viv 79005, Ukraine,
e-mail: herbarium@franko.lviv.ua
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The peculiarities of zooplankton communities of the reservoirs
of the small Polissya mixed forest ecosystems have been analysed. The different
indices were given for investigations: number of species, quantity, biomass,
trophic characteristics, index of Pantle-Buck, index of Shennon, index of
predomination. It is given that species composition of zooplankton are
characterized more plastic features. The sanitary condition of investigation
reservoirs depends on the level of antropogenic pressure and the type of
water-sypplies. The very important role for a function of zooplankton plays
less numerous species besides of great numerous species.
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Keywords: population, reservoirs, zooplankton, ecosystems.
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