1. CHARACTERISTICS OF THE MODERN TAXONOMIC COMPOSITION OF THE PHYTOPLANKTON IN THE KAZAKHSTAN PART OF THE IRTYSH RIVER.
- Author
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Argynbayeva, Ye. M., Barinova, S. S., and Ormanova, G. Zh.
- Subjects
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PHYTOPLANKTON , *WATER power , *CLASSIFICATION of algae , *AQUATIC ecology - Abstract
The transboundary Irtysh River flows through the territory of three countries. The Irtysh River is subjected to intense anthropogenic impact. In the Kazakhstan part of the Irtysh River basin, there are zones of industrial influence in the cities of Pavlodar and Aksu. Hydroelectric power, ferroalloy plants, and coal pits are located in the territory of these cities. The study of the species composition of phytoplankton is a basic method in bioindication. Phytoplankton plays an essential role in evaluating the ecological status of aquatic ecosystems. The algae flora of the transboundary Irtysh River has not been studied thoroughly enough. Most hydrobiological studies in the Kazakhstan part of the Irtysh River basin were devoted to studying reservoirs. Based on this, the relevance of studying the planktonic communities of the Kazakhstan part of the Irtysh River is increasing. This study aimed to analyze the richness of phytoplankton species in the Kazakh part of the Irtysh River basin. The research was conducted in July 2023 at 27 stations. The selection sites were located on the upper and lower reaches of the Irtysh River. Sections of the Black Irtysh, from the border with the Altai to the confluence with Lake Zaisan, and sections in the Pavlodar region were surveyed. We registered 153 species and subspecies of algae from Heterokontophyta (69), Chlorophyta (61), Cyanobacteria (16), Charophyta (4), Euglenophyta (2), and Dinoflagellata (1) in the phytoplankton. A high level of similarity characterized phytoplankton of most of the surveyed sites. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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