Ecosystems of Siberian Arctic Seas – 2022: Ecosystem of the Eastern Kara Sea, Ecological Risks Accumulated in the Basin (89 Cruise of Research Vessel “Akademik Mstislav Keldysh”)

89 cruise of R/V “Akademik Mstislav Keldysh” was organized by Shirshov Institute of Oceanology in a frame of the Program “Marine Ecosystems of Siberian Arctic” and was held form 19 September to 10 October 2022. 60 scientists from the institutes of Russian Academy of Sciences, Moscow State University, Moscow Institute of Physics and Technology, VNIRO and MES participated in the cruise. Coordinated hydrophysical, hydrochemical, biooceanological, geochemical research, valuation of greenhouse gases concentration in above-water atmosphere were carried out over the shelf and continental slope of the eastern poorly known part of the Kara Sea. Ecosystem of Blagopoluchiya Bay (Novaya Zemlia) and conditions of disposals of radioactive waste in the bay were in a focus of the research as well.