Assessing Climate and Human Activity Effects on Hypersaline Lake Ecosystem: Case Study of Saki Lake, Crimea

Abstract

In the Crimean Peninsula, there are several hypersaline lakes that have hydromineral and biological resources. However, they are under a significant anthropogenic load, which together with the climate change leads to negative consequences for the ecosystems. The aim of the work was to study the seasonal changes of physicochemical parameters of water (temperature, pH, oxygen content, salinity, redox potential Eh, optical density and transparency) and Artemia population in Saki Lake in 2022. For the daily fluctuations of temperature, O2, CH4 and CO2, a vertical temperature profile measuring system was installed at the boundaries of the air, water and bottom at a depth of 4 m and with a spatial discreteness of 0.2 m. The drive sensors for the content of gases assay in the air were installed. The increase in salinity and Eh in summer was accompanied by an increase in air and water temperature. Simultaneously, decreases in oxygen content and pH in brine have been observed. Artemia cysts were found throughout the year, nauplii were mostly available during spring and autumn, and the adults were shown in summer. The obtained results demonstrated the seasonal fluctuations in the hypersaline ecosystem within the ongoing climate change, and they can be used for the development of the optimal management of the mineral and biological resources of such water bodies.

Assessment and Management of the Water Quality and Heavy-Metal Pollution of a Protected Hypersaline Wetland in the United Arab Emirates

“…With careful planning and implementation of the best management practices for erosion and sediment control, the consequences of development on receiving water bodies can be minimized. A similar study suggested that sustainability management is possible for the restoration of hypersaline wetlands by assessing seasonal fluctuations of water quality parameters and their potential effects due to climate change [87].…”

Research on Hydrolithospheric Processes Using the Results of Groundwater Inflow Testing

“…Therefore, the primary objectives of this study were enhancing the economic efficiency of mineral water extraction while minimizing environmental threats. With those in mind, we set out to analyze hydrogeological processes under random influences, find methods and algorithms for management, and identify laws for optimal functioning of the technological process [29][30][31].…”

Methodology to Increase the Efficiency of the Mineral Water Extraction Process

“…It includes the following republics of the North Caucasus Federal District: Karachay-Cherkessia, Kabardino-Balkaria and the Stavropol Territory. The area of the resort is 5243 km 2 [1][2][3]. The Government of the Russian Federation has assigned this territory the status of an ecological resort region, where economic activities are regulated by a special regime of environmental management.…”