Distribution of the Fields of Temperature, Salinity, Total Suspended Matter and Fluorescent Dissolved Organic Matter in the Kazachya Bay (Sevastopol)

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

1 Marine Hydrophysical Institute of RAS, Sevastopol, Russia

2 A. O. Kovalevsky Institute of Marine Biological Research of RAS, Sevastopol, Russia

Abstract

The fields of temperature, salinity, total suspended matter (TSM) and fluorescent dissolved organic matter (fDOM) were investigated on the basis of complex hydrophysical survey, which was carried out on October 14, 2018 in the Kazachya Bay. The horizontal and vertical distributions of these parameters are considered. It was shown that the surface temperature and salinity in the bay during the study varied in narrow ranges, and in the bottom layer the values of these parameters varied within wide limits. The horizontal distribution of TSM had a heterogeneous structure. In the surface layer six spots, characterized by high concentrations were found. In the central part of the bay «the spots» appeared only in the upper layer, and in the corner part they spread throughout the depth. In the horizontal distribution of fDOM concentrations, the region with the maximum values in the northwestern part of the bay was identified. Despite the local TSM and fDOM arrival sources existence, the Kazachya Bay currently remains one of the cleanest bays of Sevastopol.

Keywords

total suspended matter, fluorescent dissolved organic matter, temperature, salinity, anthropogenic pollution, the Kazachya Bay

DOI

10.22449/2413-5577-2019-1-54-61

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