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Hydrobiological Journal
SJR: 0.227 SNIP: 0.575 CiteScore™: 0.24

ISSN Druckformat: 0018-8166
ISSN Online: 1943-5991

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Hydrobiological Journal

DOI: 10.1615/HydrobJ.v34.i4-5.50
pages 50-60

Specific Features of Bivalve Distribution in the System of Heated Konin Lakes (Poland)

S. A. Afanasyev
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine
A. A. Protasov
Institute of Biodiversity and Ecosystem Studies of Bulgarian Academy of Sciences, Sofia, Bulgaria; Institute of Hydrobiology National Academy of Sciences of Ukraine Kyiv, Ukraine
B. Zdanowski
Inland Fisheries Institute, Poland
J. Tunowski
Institute of Hydrobiology, National Academy of Sciences of Ukraine, Kiev, Ukraine


Species composition and quantitative distribution of bivalves were studied in the system of Konin lakes, which serve as cooling reservoirs of two thermal power plants. Attention was focused on zebra mussels (Dreissena polymorpha) and representatives of the Chinese genus Sinanodonta discovered in Europe for the first time. The upper limit of heat resistance for the latter was estimated at 40°C, i.e., proved to be the highest among species of the family Unionidae. Its maximal average biomass at some sites exceeded 50 kg/m2, which is the highest value ever described for the freshwater zoobenthos.