Version 1
: Received: 18 September 2023 / Approved: 18 September 2023 / Online: 20 September 2023 (07:58:38 CEST)
How to cite:
Park, J.; Sakelarieva, L.G.; Varadinova, E.D. Comparative Analysis of the Structure of Benthic Macroinvertebrate Communities in Maritsa River (Bulgaria) and Han River (South Korea). Preprints2023, 2023091237. https://doi.org/10.20944/preprints202309.1237.v1
Park, J.; Sakelarieva, L.G.; Varadinova, E.D. Comparative Analysis of the Structure of Benthic Macroinvertebrate Communities in Maritsa River (Bulgaria) and Han River (South Korea). Preprints 2023, 2023091237. https://doi.org/10.20944/preprints202309.1237.v1
Park, J.; Sakelarieva, L.G.; Varadinova, E.D. Comparative Analysis of the Structure of Benthic Macroinvertebrate Communities in Maritsa River (Bulgaria) and Han River (South Korea). Preprints2023, 2023091237. https://doi.org/10.20944/preprints202309.1237.v1
APA Style
Park, J., Sakelarieva, L.G., & Varadinova, E.D. (2023). Comparative Analysis of the Structure of Benthic Macroinvertebrate Communities in Maritsa River (Bulgaria) and Han River (South Korea). Preprints. https://doi.org/10.20944/preprints202309.1237.v1
Chicago/Turabian Style
Park, J., Lidia G. Sakelarieva and Emilia D. Varadinova. 2023 "Comparative Analysis of the Structure of Benthic Macroinvertebrate Communities in Maritsa River (Bulgaria) and Han River (South Korea)" Preprints. https://doi.org/10.20944/preprints202309.1237.v1
Abstract
The aim of this paper is to compare the taxonomic composition and species diversity of the macrozoobenthos in Maritsa River (Bulgaria) and Han River (South Korea). Samples were collected at 15 selected sites in each river, including some of their main tributaries in 2020 and 2021. The number of the taxa recorded in Maritsa River was more than twice as great as in Han River: 192 taxa belonging to 19 systematic groups compared to 88 taxa belonging to 18 groups respectively. The order Ephemeroptera had the highest species richness: 31 taxa in the Bulgarian rivers and 26 taxa in the South Korean ones. The macrozoobenthic communities responded and adapted to the various conditions and impacts in the water environment with changes in the species composition and structure. The analysis of the similarity in the taxonomic composition showed low resemblance between all study sites but displayed distinct separations between the rivers and the two years. In general, the species structure of the macrozoobenthic communities in Maritsa River and its studied tributaries was better than in Han River. In both years, high species diversity was recorded at the reference sites in the rivers, characterized by conditions closely resembling natural environments. The species richness and the evenness of macrozoobenthos were very low at sites downstream subjected to considerable anthropogenic pressure. Some of the communities in Han River were almost destroyed completely.
Keywords
lotic ecosystems; community ecology; biodiversity indices
Subject
Environmental and Earth Sciences, Ecology
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
