%0 Journal Article %T THE CONTENT OFORGANIC SUBSTANCE IN AQUATIC ECOSYSTEMSAS ECOLOGICAL CONDITIONINDICATOR %A Pakusina, A.P. %A Platonova, T.P. %K aquatic ecosystem, organic substance, eutrophication, dissolved oxygen, permanganate oxidation, saprophytic bacteria, self-purification %J Bulletin of KSAU %D 2012 %N %P 4 %I Krasnoyarsk State Agrarian University