Ecological Potential of the Danube River Through Serbia Based on Biological Quality Elements
2024
Đuknić, Jelena | Popović, Nataša | Vasiljević, Božica | Tubić, Bojana | Andjus, Stefan | Ilić, Marija | Paunović, Momir
The Danube as the second longest river in Europe passes through many densely populated cities with high developed industry, traffic and agriculture, why it suffer a huge anthropogenic pressure. Serbian part of the Danube River belongs to its middle course that is under great influence of the Iron Gate. This study is aimed to assess the ecological potential of the Danube through Serbia using macroinvertebrate communities. The research was carried out on 16 localities on the Danube River and its main tributaries in year 2023. Samples were collected in May and September. To assess the ecological potential, following indices were calculated: Total number of taxa, Saprobic Index (SI), Biological Monitoring Working Party (BMWP), Average Score Per Taxon (ASPT), Diversity Index (H'), participation of Oligochaeta (Tubificidae) in total community and the number of Gastropoda and Bivalvia (Mollusca) taxa. Total of 102 taxa, from 18 groups, were identified. Diptera, Crustacea, Gastropoda and Oligochaeta were the dominant taxa with the high abundance. Study of macroinvertebrate community during high water regime (May) showed presence of 55 taxa, while 80 taxa were recorded during low water regime (September). Based on available data and employed indices, ecological potential of the Danube in investigated stretch could be assessed as “moderate” to “very poor” (III-V class). The researched stretch of the Danube River is primarily under the influence of hydromorphological degradation and organic pollution.
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Información bibliográfica
Editorial University of Belgrade, Technical faculty in Bor (Serbia)
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