N.A. Andreeva, E.A. Grebneva
Institute of Natural and Technical Systems, RF, Sevastopol, Lenin St., 28
Preliminary results on the distribution of phytoplankton microalgae in the northern, northeastern and northwestern coastal areas of the Black Sea under the conditions of changing oceanological characteristics of the environment in different seasons of 2019 and 2020 were obtained. It was revealed that they developed most actively in the area from Balaklava to Sevastopol Bay waters in the spring.
In autumn, in the water area of Kamyshovaya Bay and in winter in the area between the northwestern coast of the Crimean Peninsula and the mainland coast, the growth of microalgae in phytoplankton was recorded at some stations, with diatoms of the genus Melosira dominating there. A similar picture of the distribution of phytoplankton microalgae in both cases is related to similar oceanological characteristics, such as the pH value.
In summer, at stations along the southeastern coast of Crimea, characterized by an increased pH value compared to winter, an increase in the algological component, cyanobacteria of the genus Synechococcus, was identified in the phytoplankton of only two stations.
In order to establish clearer patterns of the development of phytoplankton microalgae, depending on the changing oceanological characteristics and determine ecological indicators of the well-being of the marine coastal area, the study is to be continued.
The data obtained can later be used in the monitoring of the ecological state of the coastal water areas of large settlements, reactivation zones and other objects of economic activity.
Keywords: expeditions, the Black Sea, microalgae, phytoplankton, changing oceanological
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