Densities structure and the role of zooplankton in phosphorus cycling in limnetic and lotic parts of Zegrzyński Reservoir

Ejsmont-Karabin, Jolanta; Węgleńska, Teresa

doi:ISSN 0420-9036

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Densities structure and the role of zooplankton in phosphorus cycling in limnetic and lotic parts of Zegrzyński Reservoir Ejsmont-Karabin, JolantaWęgleńska, Teresa

Object structure

Densities structure and the role of zooplankton in phosphorus cycling in limnetic and lotic parts of Zegrzyński Reservoir

Zooplankton and phosphorus cycling ; Ecology of two reservoirs (Central Poland) and water quality of Vistula and its tributaries

Ejsmont-Karabin, Jolanta ; Węgleńska, Teresa

Polska Akademia Nauk. Instytut Ekologii

Polish Scientific Publishers

Warszawa

1990

Pages 251-280 : illustrations ; 24 cm ; Bibliographical references (pages 279-280) ; Abstract in Polish

Journal/Article

dam reservoir ; zooplankton density ; species structure and diversity ; predator pressure ; phosphorus regeneration ; phosphorus sedimentation

Studies conducted in 1982 and 1984 examined structure and densities of zooplankton in a main basin of the Zegrzyński Reservoir, made in 1962-1964 in effect of impounding two rivers. As compared to limnetic sites, the stations located in the lotic part of the reservoir were marked for a steadier course of zooplankton abundance dynamics, a smaller contribution of Crustacea to zooplankton, a smaller fecundity of the dominating crustacean species, but greater – of rotifers, a smaller share of plant food in zooplankton diet, a weaker pressure of invertebrate predators on small bodied zooplankton and about a two-time longer turnover time of total P and phosphorus contained in food in effect of phosphorus regeneration by zooplankton.

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