Phytoplankton of the Ukrainian Polissia River Ecosystems

Q4 Agricultural and Biological Sciences

International Journal on Algae Pub Date : 2023-01-01 DOI:10.1615/interjalgae.v25.i2.30

Y. Shelyuk

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Abstract

The peculiarities of the phytoplankton structures of the main Polissia rivers - Pripyat and Teteriv - have been established. The main trends in the transformation of the autotrophic network of Polissia rivers have been uncovered. In total, between 2003-2020, 621 species of algae were identified, represented by 660 intraspecific taxa belonging to 217 genera, 81 families, 35 orders, 14 classes, and 8 divisions. Fifty-one specific and intraspecific taxa were found to be new to the Ukrainian Polissia. The appearance of species new to the region is largely due to changes in the hydrological and hydrochemical regimes of watercourses associated with regulation, land reclamation, anthropogenic pollution, and climate changes. The thoroughness and purposefulness of this study by covering a many territories and watercourses including various physical and geographical regions in the Ukrainian Polissia. The main abiotic parameters that cause changes in the structural indicators of phytoplankton in the studied watercourses have been determined. It was established that the relationship between algofloristic indicators and environmental factors is largely determined by the content of biogens. A strong inverse connection was found between the number of algae species and water color, as well as a weak correlation with temperature. A bioindicative analysis of the species composition of phytoplankton of river ecosystems was carried out, and the quality of their waters was assessed. In the watercourses of the region, the predominance of saprobity indicators, which correspond to the III class of water quality, was determined.

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乌克兰波利西亚河生态系统的浮游植物

已经确定了波利西亚主要河流——普里皮亚季河和捷捷列夫河的浮游植物结构的特点。揭示了波兰河流自养网络转变的主要趋势。2003-2020年共鉴定藻类621种，种内分类群660个，隶属8界35目14纲81科217属。在乌克兰波兰发现了51个新的特有和种内分类群。该地区新物种的出现主要是由于与调节、土地开垦、人为污染和气候变化相关的水道水文和水化学制度的变化。这项研究的彻全性和目的性涵盖了乌克兰波兰的许多领土和水道，包括各种自然和地理区域。确定了引起所研究水道浮游植物结构指标变化的主要非生物参数。结果表明，植物区系指标与环境因子的关系在很大程度上取决于生物原含量。研究发现，藻类种类的数量与水色之间存在很强的负相关关系，而与温度之间存在弱相关关系。对河流生态系统的浮游植物种类组成进行了生物指示性分析，并对其水体质量进行了评价。在该区域的河道中，确定了对应于III类水质的野性指标的优势度。

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来源期刊

International Journal on Algae Agricultural and Biological Sciences-Plant Science

CiteScore

0.40

自引率

0.00%

发文量

期刊介绍： The algae are heterogeneous assemblage of phytosynthetic organisms, one of the most vast and diverse groups of ancient photoautotrophic pro- and eukaryotic organisms (about 30 000 known species). They are micro- and macroscopic, unicellular, colonial, or multicellular, mobile and immobile, attached and free-living. Algae are widespread in water and soil habitats, at different geographic latitudes, and on all continents. They occur in waters with different degrees of salinity, trophicity, organic matter, and hydrogen ions, and at various temperatures. They include planktonic, periphytonic and benthic organisms. Algae are unique model organisms in evolutionary biology and also are used in various genetic, physiological, biochemical, cytological, and other investigations.