oa Marine Ecosystem Monitoring

Currently, the Mediterranean basin, in particular the Black and Azov Seas, is experiencing a pre-crisis state due to the negative impact of anthropogenic pollution. Information about the presence of technogenic and agricultural pollutants (heavy metals, pesticides, polychlorinated biphenyls, dioxins, oil products, radionuclides, surfactants) in bottom sediments, aquatic organisms, suspensions in of great theoretical and practical interest for assessing the potential threat of anthropogenic influence of the productivity of sea waters. Tens of thousands of dolphins have already died in the Black Sea on the territory of several countries due to the military aggression of the Russian Federation - war. A multicomponent marine system (water – zooplankton – phytoplankton – bottom sediment – fish) within an ecological framework is considered to protect the seas from pesticides. Using gas chromatography method it was established that in bottom sediments, sea water and others of the Black and Azov Seas there could be detected stable chloroorganic pesticides – DDT and its methabolites p,p’ – DDT, p,p’- DDE, o,p’ - DDD; hexachlorocyclohexane and its isomers: α - HCCH, β -HCCH, γ - HCCH; heptachlor (COP); organophosphorus pesticides: methaphos, carbophos, phosphomide, phozalone; nitrogen – containing pesticides: atrazine, simazine, prometryne; fluor – containing pesticides: trephlane.

As a condition for preventing an ecological catastrophe, it is necessary to monitor the state of the ecosystem of the Azov-Black Sea basin within the framework of environmental monitoring of Ukraine.