%0 Journal Article %T IMPACT OF INTENSIVE FISH FARMING ON WATER QUALITY IN PONDS %A Vasiliev, A.. %A Poddubnaya, I.. %A Gurkina, O.. %K pond, fish farming, self-purification, monoculture, polyculture, vegetation season, bacteria, microorganisms, water quality %J Vestnik of Astrakhan State Technical University. Series: Fishing industry %D 2019 %N 2019 %P 6 %I Astrakhan State Technical University