Hydrophysical research in the Kruglaya Bay (Sevastopol)

A. A. Latushkin1, A. I. Chepyzhenko1, A. V. Prazukin2*, A. A. Chepyzhenko1, Yu. K. Firsov2

1 Marine Hydrophysical Institute of RAS, Sevastopol, Russia

2 A. O. Kovalevsky Institute of Biology of the Southern Seas of RAS, Sevastopol, Russia

* e-mail: prazukin@mail.ru

Abstract

On the basis of two hydrophysical surveys (August 28 and November 14, 2019), the spatial distribution was investigated of temperature, salinity, total suspended matter, dissolved organic matter features, and total suspended matter dynamic activity in the waters of the Kruglaya Bay. The horizontal and vertical distributions of these characteristics were considered. The hydrophysical parameters were measured from a small vessel at anchored stations using Kondor Sounding Complex. The analysis of obtained distributions showed that less saline and more turbid waters were observed in the apex of the bay. The highest content of suspended particles and dissolved organic matter were detected in this water area. An almost uniform stratification of hydrological parameters and total suspended matter concentration were observed in the vertical distribution over the entire water area of the bay. In the vertical dissolved organic matter distribution, an increase under the water surface layer of ~ 1–5 m was observed both in August and in November. This layer was more pronounced in November. The total suspended matter content in the surface water layer in August 2019 was on average twice as high as in November of the same year, and the dissolved organic matter concentration was lower.

Keywords

anthropogenic pollution, Kondor Sounding Complex, total suspended matter, dissolved organic matter, temperature, salinity

Acknowledgments

The research was funded by the RFBR under project р_а no. 18-45-920044, and also partly under state tasks: IBSS no. 121041500203-3, MHI no. 0555-2021-0003.

For citation

Latushkin, A.A., Chepyzhenko, A.I., Prazukin, A.V., Chepyzhenko, A.A. and Firsov, Yu.K., 2021. Hydrophysical Research in the Kruglaya Bay (Sevastopol). Ecological Safety of Coastal and Shelf Zones of Sea, (3), pp. 107–122. doi:10.22449/2413-5577-2021-3-107-122 (in Russian).

DOI

10.22449/2413-5577-2021-3-107-122

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