Changes in the taxonomic structure of phytoplankton inhabiting small water bodies as a consequence of the technogenic impact
This paper considers the transformation of phytoplankton communities inhabiting anthropogenic ecosystems of water bodies as a consequence of the technogenic load. Cleaning and restoration of the balance in such ecosystems is a complex and expensive process. Therefore, it is of great importance to st...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Kazan Federal University
2018-06-01
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| Series: | Учёные записки Казанского университета: Серия Естественные науки |
| Subjects: | |
| Online Access: | https://kpfu.ru/main_page?p_cid=342815&p_random=179 |
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| Summary: | This paper considers the transformation of phytoplankton communities inhabiting anthropogenic ecosystems of water bodies as a consequence of the technogenic load. Cleaning and restoration of the balance in such ecosystems is a complex and expensive process. Therefore, it is of great importance to study the natural processes of self-recovery and stabilization in them. The purpose of this study is to investigate the character of transformation of the phytoplankton taxonomic structure of anthropogenic water bodies after the end of their use. The objects of study are Lake Otstoinik (received wastes from nitrogen fertilizer production) and Lake Shlamonakopitel'noe (received ash and slugs produced by the Togliatti TPP) located in the city of Togliatti, Samara region. Based on the analysis of changes in the taxonomic structure of phytoplankton before and after the anthropogenic impact, the following conclusions have been made: a decrease of the technogenic load on the water bodies enhanced the species richness of phytoplankton in all major taxonomic groups. In more than 20 years (from 1991 to 2014), the taxonomic spectra of phytoplankton extended significantly along with the dramatic transformation of ecosystems (divisions), which is evidenced by the high species specificity of algal flora at the initial and final stages of the study. Based on a number of the important parameters, it can be concluded that the general character of the transformation is positive. The obtained results will be of great interest for experts developing methods for restoration of ecosystems following the anthropogenic load, because they prove the ability of such ecosystems to self-regeneration and stabilization even under the conditions of anthropogenically transformed landscape and the lack of specific nutrient limitation. |
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| ISSN: | 2542-064X 2500-218X |