Indicators of the state of waters in the Kruglaya and Southern Bays (Black Sea) under conditions of anthropogenic load

by

P.D. Lomakin, A.A. Chepyzhenko

Marine Hydrophysical Institute, RF, Sevastopol, Kapitanskaya St., 2

E-mail: p_lomakin@mail.ru

DOI: 10.33075/2220-5861-2026-1-62-72

UDC 504+551. 465                               

EDN: https://elibrary.ru/qkwzys

Abstract: 

Based on expeditionary research data and coastal observations, the features of morphometric characteristics and the most significant changes in a number of indicators of the state of waters in the Kruglaya Bay caused by anthropogenic impact are considered. Information on turbidity, the content of colored dissolved organic matter and dissolved petroleum products in the bay is presented. The factors that caused anthropogenic changes in the analyzed indicators are identified.  It is established that the current state of waters in the Kruglaya Bay is characterized by significant turbidity, an increased concentration of dissolved organic matter, with dissolved petroleum products being also detected. Due to land development and hard surface of the coastal area, active drift and isolation of the inner part of the bay is observed. The considered indicators of the state of waters in the Kruglaya Bay are compared with similar ones for the Southern Bay, which, according to a number of hydrochemical parameters, is considered the most polluted among all Sevastopol bays. It is revealed that by the end of the second decade of the current century, the turbidity of the waters in the Kruglaya Bay was significantly higher, the concentration of colored dissolved organic matter was noticeably lower, and the concentration of dissolved petroleum products was approximately equal to the concentration of these substances in the Southern Bay.

Keywords: anthropogenic impact, turbidity, dissolved organic matter, dissolved petroleum products, Sevastopol bays, Black Sea

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