“SYSTEMATIC DESCRIPTION OF ZOOPLANKTON SPECIES AND DETERMINATION OF THE SPECIES COMPOSITION OF THE DENGIZKUL WATER BODY IN THE BUKHARA REGION.”
Keywords:
Bukhara region, Dengizkul water basin, zooplankton organisms, seasonal development, succession, Classes Rotifera, Cladocera, Copepoda.Abstract
In this article, the species composition, density and physicochemical properties of zooplankton organisms for different types of water bodies of the Dengizkul water basin were studied. During the study, water samples were taken from 3 contours of the Dengizkul water basin, a cirrhotic channel, and collectors. Zooplankton were identified microscopically and separated into species using spectrometers. The systematic description of zooplankton species, the relative differences in the zooplankton of the water body due to the fact that samples were collected at different times and from different water depth layers, were studied in cross-sectional areas. A number of factors such as water temperature, pH level, oxygen content and degree of mineralization were identified as the main factors affecting the composition and density of zooplankton. The results obtained are of important scientific and practical importance in assessing and improving the ecological status of Lake Dengizkul.References
1. The Strategy of Actions for the Further Development of the Republic of Uzbekistan (2017-2021). Decree PF-4947, February 7, 2017. http://www.lex.uz
2. Abdinazarov, Kh. Kh., & Khalilov, Sh. M. (2018). Zooplankton organisms in fish ponds and their importance in fish nutrition. UzMU Bulletin, No. 31(1), 7-11.
3. Abdinazarov, Kh. Kh. (2018). Zooplankton of the Fergana Valley Water Bodies. PhD Abstract, Tashkent, 3–18.
4. Abdullaev, M. A., Niyazov, D. S., Ergashev, M. R., & Urchinov, D. U. (1981). The food base and fish productivity of Lake Tuzkon. In: Biological Foundations of Fisheries in Central Asia and Kazakhstan. Balkhash, 208-210.
5. Stroganov, N. S. (1980). Practical Guide to Hydrochemistry. Moscow: Nauka, 195 p.
6. Kuzmetov, A. R. (2024). Seasonal succession of zooplankton organisms in the Fergana Valley. Khorezm Ma’mun Academy Journal, 9, 6-10.
7. Lampert, W. (2011). Trophic interactions and water quality effects of zooplankton and phytoplankton in Lake Constance. Hydrobiologia, 667(1), 49-64.
8. Yuldashev, M. A., & Normurodov, S. B. (2019). Composition and seasonal dynamics of zooplankton in the Bukhara region. Uzbekistan Journal of Biology, 3(45), 56-62.
9. Lee, S., & Yoo, S. (2018). Interspecific resource competition effects on phytoplankton and zooplankton in Korean coastal waters. Marine Ecology Progress Series, 594, 31-46.
10. Farwell, C. (2015). Ecology of the ocean sunfish (Mola mola) in the southern California current system. Journal of Experimental Marine Biology and Ecology, 64-76.
11. Husenov, S. Q., Niyozov, D. S., & Sayfullaev, G. M. (2010). Fundamentals of Fish Farming. Bukhara: Bukhara Publishing House, 304 p.
12. Yermolayeva, N. I., Zarubina, E. Yu., Romanov, E. Yu., Leonova, G. A., & Puzanov, A. V. (2016). Hydrobiological conditions for the formation of sapropels in lakes of southwestern Siberia. Water Resources, 49, 67–79.
13. Stoyko, T. G., Burdova, V. A., & Mazey, Yu. A. (2014). Proceedings of the Mordovia State Nature Reserve named after P.G. Smidovich, Vol. 12. Saransk: Pushta, 357-364.
14. Pahlow, M., & Prowe, A. E. F. (2010). Model of optimal current feeding in zooplankton. Marine Ecology Progress Series, 403, 129-144.
15. Lurie, Yu. Yu. (1984). Analytical Chemistry of Industrial Wastewater. Moscow: Khimiya, 446 p.
16. GOST 31861–2012. Water. General Requirements for Sampling. (ISO 5667-1:2006, NEQ) (ISO 5667-2:1991).
