PECULIARITIES OF THE FORMATION OF THE ZOOPLANKTON SPECIES COMPOSITION IN TWO DIFFERENT-TYPE RESERVOIRS IN EASTERN GEORGIA

Author: Zelimkhan Kereselidze
Keywords: Zooplankton, hydrological rejime, filtrators, everyhalinic forms, abiotic and biotic faqtors.
Annotation:

Sioni and Kumisi reservoirs dramatically differ from each other by their landscape geographical location, size, ground character and form, hydrological and hydrochemical mode. Therefore zooplankton qualitative composition formation in these two reservoirs are characterized with some kind of features: the number of species in Sioni reservoir had been dramatically increased and then had been decreased, and finally had been prevailed percolators. Such changes are connected with the drastic changes of water level. In the Kumisi reservoir the number of species during the formation are reduced more dramatically and finally had been revealed predators. Had been remained evryhaline forms. Mainly these changes are related with the water mineralization changes. The quantitative structure of zooplankton are characterized by drastic changes during the year, which are caused due to the variability features of hydrological and hydrochemical regime, biotic factors (nutritional interdependence).