THE CYANOPHYTA FLORA OF WATER BODIES IN NAMANGAN REGION AND THEIR ECOLOGICAL SIGNIFICANCE

Authors

  • Mashxura Qo‘chqarova Author

DOI:

https://doi.org/10.47390/ydif-y2026v2i19/n01

Keywords:

Cyanophyta, Cyanobacteria, algal flora, cyanobacterial communities, ecological grouping, plankton, benthos, periphyton, trophic status, eutrophication, bioindication, aquatic ecosystem, ecological monitoring.

Abstract

This study analyzes the ecological and structural characteristics of the Cyanophyta flora occurring in water bodies of the Namangan Region and its significance for the functional state of aquatic ecosystems, based on scientific literature and the natural and ecological conditions of the region. The distribution of Cyanophyta representatives across different types of water bodies, their ecological grouping, their occurrence in planktonic, benthic, and periphytic communities, and their responses to environmental factors were examined. The analysis indicates that the formation of the Cyanophyta flora is closely associated with the hydrological regime of water bodies, light availability, thermal conditions, water chemistry, and the availability of nutrients. In particular, excessive accumulation of nitrogen and phosphorus compounds in aquatic environments, reduced water exchange, and favorable thermal conditions may promote the dominance of certain cyanobacterial taxa within aquatic communities. The contribution of Cyanophyta to primary production, their functional role in nutrient cycling, and their responses to changes in trophic conditions make them a promising biological component for assessing the ecological status of aquatic ecosystems. The study of Cyanophyta flora in the water bodies of Namangan Region is of considerable theoretical and practical importance for identifying regional algofloristic diversity, characterizing ecological processes, and developing a scientifically based bioindication monitoring system in the future.

References

1. Mateo M.R., Leganés F., Fernández-Piñas F. Cyanobacteria as bioindicators and bioreporters in environmental assessment // Biodiversity and Conservation. – 2015. – Vol. 24, №4. – P. 909–948. – DOI: 10.1007/s10531-015-0903-y.

2. Wu N., Dong X., Liu Y., et al. Using river microalgae as indicators for freshwater biomonitoring: Review and case studies // Ecological Indicators. – 2017. – Vol. 81. – P. 124–131. – DOI: 10.1016/j.ecolind.2017.05.066.

3. Huisman J., Codd G.A., Paerl H.W., Ibelings B.W., Verspagen J.M.H., Visser P.M. Cyanobacterial blooms // Nature Reviews Microbiology. – 2018. – Vol. 16, №8. – P. 471–483. – DOI: 10.1038/s41579-018-0040-1.

4. Paerl H.W., Otten T.G. Harmful cyanobacterial blooms: Causes, consequences, and controls // Microbial Ecology. – 2013. – Vol. 65, №4. – P. 995–1010. – DOI: 10.1007/s00248-012-0159-y.

5. Ergasheva H., Mahmudova M. Systematic analysis of Cyanophyta, Dinophyta and Chrysophyta in Eskiyer water reservoir // World Bulletin of Social Sciences. – 2021. – Vol. 4. – P. 122–128.

6. Ikramov A. Katta Namangan va Katta Farg‘ona kanallari algoflorasining taksonomik tarkibi // Qo‘qon DPI ilmiy xabarlar. – 2024. – №4. – B. 881–888.

7. Whitton B.A., Potts M. (eds.). The Ecology of Cyanobacteria: Their Diversity in Time and Space. – 2nd ed. – Dordrecht: Springer, 2012.

8. Paerl H.W., Fulton R.S., Moisander P.H., Dyble J. Harmful freshwater algal blooms, with an emphasis on cyanobacteria // The Scientific World Journal. – 2001. – Vol. 1. – P. 76–113.

9. O’Neil J.M., Davis T.W., Burford M.A., Gobler C.J. The rise of harmful cyanobacterial blooms: The potential roles of eutrophication and climate change // Harmful Algae. – 2012. – Vol. 14. – P. 313–334. – DOI: 10.1016/j.hal.2011.10.027.

10. Carey C.C., Ibelings B.W., Hoffmann E.P., Hamilton D.P., Brookes J.D. Eco-physiological adaptations that favor freshwater cyanobacteria in a changing climate // Water Research. – 2012. – Vol. 46. – P. 1394–1407.

11. Smith V.H., Schindler D.W. Eutrophication science: Where do we go from here? // Trends in Ecology & Evolution. – 2009. – Vol. 24, №4. – P. 201–207.

12. Downing J.A., Watson S.B., McCauley E. Predicting cyanobacteria dominance in lakes // Canadian Journal of Fisheries and Aquatic Sciences. – 2001. – Vol. 58, №10. – P. 1905–1908. – DOI: 10.1139/f01-143.

13. Cyanobacteria respond to trophic status in shallow aquatic ecosystems // Science of the Total Environment. – 2024. – Vol. 949. – Article 174932.

14. Reynolds C.S. The Ecology of Phytoplankton. – Cambridge: Cambridge University Press, 2006.

15. Monteagudo L., Moreno J.L. Benthic freshwater cyanobacteria as indicators of anthropogenic pressures // Ecological Indicators. – 2016. – Vol. 67. – P. 693–702. – DOI: 10.1016/j.ecolind.2016.03.035.

16. Flores E., Herrero A. Nitrogen assimilation and nitrogen fixation in cyanobacteria // Encyclopedia of Life Sciences. – Chichester: John Wiley & Sons, 2005.

17. World Health Organization. Guidelines on Recreational Water Quality. Volume 1: Coastal and Fresh Waters. – Geneva: WHO, 2021.

18. World Health Organization. Management of Cyanobacteria in Drinking-water Supplies: Information for Regulators and Water Suppliers. – 2nd ed. – Geneva: WHO, 2024.

19. Wehr J.D., Sheath R.G., Kociolek J.P. (eds.). Freshwater Algae of North America: Ecology and Classification. – 2nd ed. – Academic Press, 2015.

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Published

2026-10-13

How to Cite

Qo‘chqarova , M. (2026). THE CYANOPHYTA FLORA OF WATER BODIES IN NAMANGAN REGION AND THEIR ECOLOGICAL SIGNIFICANCE. SCIENCE OF THE NEW ERA: INNOVATIVE IDEAS AND SOLUTIONS FOR HUMANITY, 2(19), 7-11. https://doi.org/10.47390/ydif-y2026v2i19/n01