Physical and chemical environmental factors’ influence on the proteolytic potential of probiotic microorganisms’ individual representatives

This work is devoted to the study of sanitary and hygienic monitoring fishery water use objects in Murmansk region. The paper presents assessment ecological conditions reservoirs Arctic region Kola Tuloma rivers for period 2016-2018 based on microbiological, hydrochemical parasitological indicators, as well integral index surface pollution. Hydrochemical studies consisted determining biochemical oxygen consumption, mass content NH4+, NO2-, NO3-, iron, dissolved O2. river waters state was carried out by means microbiological methods. parameters were used determine number common thermotolerant coliform bacteria, coliphages, presence intestinal infections pathogens. does not meet standards terms indicators seventeen percent five cases. According requirements. In points sampling, evaluated pure according value belongs second category quality. general, high-water quality noted. conclusion, it should be emphasized that systematic supply sources necessary obtain an idea indicators’ variability assess pollution degree.