oxygen regime

Based on decades of research hydrochemical indicators PECHENEZSKE reservoir found that oxygen conditions in general satisfactory, halogen concentrations of pesticides and triazine herbicides in the water below the maximum allowable concentrations. Today, the limit values of Pechenezske water-reservoir observed for copper and chromium. Pechenezske reservoir unfavorable to ligulidoz invasion since 1991. On parasitological parame-ters revealed the highest concentration of sick fish in the Gulf of Kulakowski and Artem and pridambovom site. Dangerous to human agents, namely chemicals, radioactive isotopes over MDS were found. Identified possible sources that significantly affect the balance of the ecosystem Pechenigy reservoir, including water, and recom-mended ways to deal with issues, improve the ecosystem of the reservoir.