For citations:

Kiyashko V.V., Kiyashko I.A. Influence of hydrochemical parameters on the species diversity of the fish fauna of small rivers in the Saratov region. Povolzhskiy Journal of Ecology. 2021;(4):468-477. (In Russ.) https://doi.org/10.35885/1684-7318-2021-4-468-477