The hydrochemical and hydrobiological analysis of the condition of the Kuibyshev reservoir littorals (Republic of Tatarstan, Russia)

Abstract

This paper reports the results of an annual hydrochemical and hydrobiological survey carried out in the littorals of the Kuibyshev reservoir (Republic of Tatarstan, Russia). 26 hydrochemical and 16 hydrobiological assessment parameters were taken into consideration during the evaluation of the composition of the sampled water. In general, 100 samples were analyzed quantitatively while 43 samples were assessed qualitatively (23 from the first region and 20 from the second one). It was found that some indexes reflected adequately environmental changes while others not. Therefore, we concentrated on here what markers may be considered as the most appropriate during analysis of the water quality.