Department of Invertebrate Fauna and Systematics, Schmalhausen Institute of Zoology, National Academy of Sciences of Ukraine, Kyiv, Ukraine.
Department of Ichthyology and Hydrobiology of River Systems, Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kyiv, Ukraine.
PeerJ. 2023 Jun 1;11:e15248. doi: 10.7717/peerj.15248. eCollection 2023.
Macrophytes are one of the important indicators used in assessing the anthropic impact on aquatic ecosystems. The structure of macrophyte communities of two rivers were compared by species composition, dominant species and projective cover using statistical methods. It is shown that the influence of storm runoff on these rivers is manifested in the form of a change in the dominant species composition. Based on the statistical analysis carried out, it can be argued that, despite the peculiarities of the flora composition of each of the rivers, the influence of storm runoffs largely neutralizes this specificity, determining the situation in local areas immediately below the runoff. In the area of the effluent discharge the dominance of individual species and an increase in the area overgrown with macrophytes was observed. In the area of stormwater discharge on the Psel River, species were usually present: , , and on the Bystrica River-, , and . The use of the NMDS method has been found to provide good insight into the structural rearrangements in macrophyte communities affected by runoff from stormwater systems.
水生植物是评估人为因素对水生生态系统影响的重要指标之一。本文采用物种组成、优势种和投影盖度等统计方法比较了两条河流的水生植物群落结构。结果表明，暴雨径流对这些河流的影响表现为优势种组成的变化。基于所进行的统计分析，可以认为，尽管每条河流的植物区系组成具有特殊性，但暴雨径流的影响在很大程度上使这种特殊性趋于中和，决定了径流下游局部地区的情况。在污水排放区域，观察到个别物种的优势和水生植物覆盖面积的增加。在 Psel 河的雨水排放区，通常存在以下物种：、、和；在 Bystrica 河，则是、、和。NMDS 方法的使用发现，它可以很好地洞察受雨水系统径流影响的水生植物群落的结构变化。
