New and rare taxa of freshwater zooplankton in the fauna of Yugoslavia

Abstract

Analysis of the faunistic composition of Zooplankton in two reservoirs for watersupply nearby Kragujevac indicated a relatively great diversity. Qualitative analysis of Zooplankton composition in the Grošnica reservoir demonstrated the presence of 105 laxa, whereas somewhat fewer taxa (99) were recorded in the Gruža reservoir. Most of the taxa recorded in both reservoirs are cosmopolitan organisms. Small number of recorded taxa have been rarely registered in the territory of Serbia till present. The following species from the group of Rotatoria can be mentioned as being probably found for the first time in waters of our country: Dicranophorus rostralus, Philodina aadicomis and Trichocerca jenningsi. All three of these species were recorded only in the Grošnica reservoir. Only inspection of the complete literature on Zooplankton in our country could confirm with certainty that the Grošnica reservoir is the first record of these three species in the territory of Serbia. However, even such data as our represents a contribution to the knowledge on diversity of the Zooplankton fauna of Serbia.