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Geoecological conditions in the Baltic sea in 2017
- Authors: Krek A.V.1,2, Ulyanova M.O.1, Bubnova E.S.1,2, Krechik V.A.1, Ryabchuk D.V.3, Danchenkov A.R.1,2, Churin D.A.1, Kapustina M.V.1,2, Tkacheva E.S.1,2, Khatmullina L.I.1,2, Sergeev A.Y.3
- Affiliations:
- Shirshov Institute of Oceanology, Russian Academy of Sciences
- Immanuel Kant Baltic Federal University
- A.P. Karpinsky Russian Geological Research Institute
- Issue: Vol 59, No 1 (2019)
- Pages: 184-186
- Section: Information
- URL: https://journals.eco-vector.com/0030-1574/article/view/11844
- DOI: https://doi.org/10.31857/S0030-1574591184-186
Abstract
In 2017, comprehensive geological, geophysical, hydrological and hydrochemical researches were conducted in the South-Eastern Baltic Sea and the Gulf of Finland. 1775 nautical miles of surveys were conducted using multibeam echosounder and profiler. Surface bottom sediments (156 samples), the upper undisturbed layer of pelitic sediments and bottom water (15 samples), 2 cores were taken. Laboratory analyzes were performed on pH (189), concentration of oxygen (246), suspended matter (286) and oil products (110). Microplastic was also collected in the water (118) and bottom sediments (45). Conducting comprehensive research in the South-Eastern Baltic Sea allowed us to record the weakening of the Major Baltic Inflow effects, followed by changes in the environmental conditions of the region. Geological surveys in the Gulf of Finland expanded the coverage area of the bottom of multibeam surveys and contributed to the refinement of the formation processes of linear and circular transgressions at the bottom.
A. V. Krek
Shirshov Institute of Oceanology, Russian Academy of Sciences; Immanuel Kant Baltic Federal University
Author for correspondence.
Email: av_krek_ne@mail.ru
Russian Federation, Moscow; Kaliningrad
M. O. Ulyanova
Shirshov Institute of Oceanology, Russian Academy of Sciences
Email: av_krek_ne@mail.ru
Russian Federation, Moscow
E. S. Bubnova
Shirshov Institute of Oceanology, Russian Academy of Sciences; Immanuel Kant Baltic Federal University
Email: bubnova.kat@gmail.com
Russian Federation, Moscow; Kaliningrad
V. A. Krechik
Shirshov Institute of Oceanology, Russian Academy of Sciences
Email: av_krek_ne@mail.ru
Russian Federation, Moscow
D. V. Ryabchuk
A.P. Karpinsky Russian Geological Research Institute
Email: daria_ryabchuk@mail.ru
Russian Federation, St. Petersburg
A. R. Danchenkov
Shirshov Institute of Oceanology, Russian Academy of Sciences; Immanuel Kant Baltic Federal University
Email: av_krek_ne@mail.ru
Russian Federation, Moscow; Kaliningrad
D. A. Churin
Shirshov Institute of Oceanology, Russian Academy of Sciences
Email: av_krek_ne@mail.ru
Russian Federation, Moscow
M. V. Kapustina
Shirshov Institute of Oceanology, Russian Academy of Sciences; Immanuel Kant Baltic Federal University
Email: av_krek_ne@mail.ru
Russian Federation, Moscow; Kaliningrad
E. S. Tkacheva
Shirshov Institute of Oceanology, Russian Academy of Sciences; Immanuel Kant Baltic Federal University
Email: av_krek_ne@mail.ru
Russian Federation, Moscow; Kaliningrad
L. I. Khatmullina
Shirshov Institute of Oceanology, Russian Academy of Sciences; Immanuel Kant Baltic Federal University
Email: av_krek_ne@mail.ru
Russian Federation, Moscow; Kaliningrad
A. Yu. Sergeev
A.P. Karpinsky Russian Geological Research Institute
Email: daria_ryabchuk@mail.ru
Russian Federation, St. Petersburg