Method of the Assessment of the Eutrophication of the Waters of the Gulf of Taganrog of the Sea of Azov Subject to the External Load on the Water Area

Abstract Eutrophication of waters is a complex problem that is widespread all over the world. These process especially intensified during the last century because of the human activity which lead to the anthropogenic transformation of water reservoirs. The object of the study – the Gulf of Taganrog of the Sea of Azov – also subject to the processes of waters eutrophication. So the research evaluates the Gulf ecosystem from the standpoint of eutrophication. The method of such assessment was developed. It includes the regression analysis and mathematical modelling. The study showed the change in the type of eutrophication of a water body from the mehotrophic type to the eutrophic one; the estimation of the inflow of the concentrations of ammonium ion, nitrate and phosphate into the waters of the Gulf showed the sources that influence this income mostly; the natural load influences the ecosystem most.