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| Content Provider | Springer Nature Link |
|---|---|
| Author | Razlutskij, V. I. Sysova, E. A. Buseva, Z. F. Feniova, I. Y. |
| Copyright Year | 2015 |
| Abstract | Dreissena polymorpha is one of the bivalve species having a great impact on the environment, composition, and structure of aquatic communities, thereby acting as an efficient driver of changes in the ecological state of water bodies. We studied five Belarusian lakes in order to compare the water quality between lakes inhabited by and devoid of D. polymorpha, as well as to reveal the reasons for the observed differences. Lake Obsterno with a natural thermal regime and cooling reservoir Lake Lukolmskoe were invaded by this mollusk. Lakes Gorushka and Nobisto with a natural thermal regime, as well as cooling reservoir Lake Beloe, were devoid of D. polymorpha. The water quality classes were determined using the indices based on the physical and chemical parameters and characteristics of phytoplankton and Cladocera communities in line with the requirements of the EU Water Framework Directive and the saprobity index calculated by the Pantle–Buck method in Sladechek’s modification. It is commonly accepted that transparency is a good indicator of the ecological state of lakes. According to the data on transparency, Obsterno and Lukolmskoe lakes have the highest ecological status. However, the estimates obtained with the help of biotic indices did not differ as significantly as transparency in these lakes. The calculations demonstrate that the discrepancies in transparency of lakes inhabited by and devoid of D. polymorpha were not in accordance with those found with the saprobity index (mismatch above 70%) and other biotic indices (above 50%). This allows us to conclude that introduction of D. polymorpha does not improve the ecological water quality through changes in the planktonic communities, regardless of higher transparency values and reduction of the phytoplankton biomass. |
| Starting Page | 184 |
| Ending Page | 196 |
| Page Count | 13 |
| File Format | |
| ISSN | 20751117 |
| Journal | Russian Journal of Biological Invasions |
| Volume Number | 6 |
| Issue Number | 3 |
| e-ISSN | 20751125 |
| Language | English |
| Publisher | Pleiades Publishing |
| Publisher Date | 2015-09-23 |
| Publisher Place | Moscow |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Dreissena polimorpha ecological status biotic indices structure of phytoplankton communities Cladocera Ecology Freshwater & Marine Ecology Plant Sciences Developmental Biology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Ecology, Evolution, Behavior and Systematics |
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