INVERTEBRATES IN THE COMMUNITY OF URBAN POND NEAR NOVO-SADOVAJA STREET (SAMARA-CITY) IN 2010

The state of right pond of two nearly located small ponds in Samara-city was described. 47 Rotatoria species (26 genus, 18 familiars) was found in 2010, the list of met rotifer species is quoted. The Brachionidae, Phylodinidae and Synchaetidae have maximum species quantity. The numerity and biomass seasonal dynamics was studied. Two numerity and biomass growths (in May and August) observes in majority Rotifera populations. Brachionidae i Synchaetidae had maximal numerity, Asplanchnidae and Synchaetidae have maximal biomass. The Rotatoria numerity was in twice more than in near located pond. Value of index species similarity of Serensen is equal 7,27. The Shannon and Pielu indexes was calculated. 17 water Insect species lives in pond. Crustaceans, Gastropods, Turbellaria, Nematoda, Oligochaeta and Ciliophora was founded in pond. The fish Perccottus glenii was founded too. The chemical analisis show four water characteristics was greater than LAC values. The pond water toxicity for Daphnia was studied in laboratory, the N.S.Stroganov standart method was used. The pond water didn't show negative influence for Daphnia survival and fecundity. The species numerity in studied pond is greater than in some urbanized water bodies. The pond ecosystem state is close to satisfactory.