Anthropogenic load on aquatic ecosystems leads to increased inputs of heavy metals, which can have a toxic effect organisms. Some the most appropriate objects for research are short-cycle fish species. This article considers results studies adaptive reactions stone moroko Pseudorasbora parva (Temminck et Schlegel, 1846) Mn, Pb, Ni metal ions, exceeded reference values in reservoir by 1.7, 1.5 a...