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Title: The importance of the mining subsidence reservoirs located along the Trans-Regional Highway in the conservation of the biodiversity of freshwater molluscs in industrial areas (Upper Silesia, Poland)
Authors: Lewin, Iga
Spyra, Aneta
Krodkiewska, Mariola
Strzelec, Małgorzata
Keywords: Mollusc community; Rare species; Transportation routes; Anthropogenic reservoirs; Anodonta cygnea; Environmental factors
Issue Date: 2015
Citation: Water, Air, and Soil Pollution, Vol. 226, no. 6 (2015), art. no. 189
Abstract: The objectives of the survey were to analyse the structure of the mollusc communities in the mining subsidence reservoirs that were created as a result of land subsidence over exploited hard coal seams and to determine the most predictive environmental factors that influence the distribution of mollusc species. The reservoirs are located in urbanised and industrialised areas along the Trans-Regional Highway, which has a high volume of vehicular traffic. They all have the same sources of supply but differ in the physical and chemical parameters of the water. In total, 15 mollusc species were recorded including four bivalve species. Among them Anodonta cygnea is classified as Endangered according to the Polish Red Data Book of Animals and also as Near Threatened according to the European Red List of Non-marine Molluscs. Eleven of the 15 mollusc species are included on the European Red List of Nonmarine Molluscs as Least Concern. Conductivity, pH and the concentration of calcium were the parameters most associated with the distribution of mollusc species. Canonical correspondence analysis showed that Potamopyrgus antipodarum, Radix balthica, Physella acuta, Gyraulus crista and Pisidium casertanum were associated with higher conductivity and lower pH values. A. cygnea, Anodonta anatina and Ferrissia fragilis were negatively influenced by these parameters of the water. The results of this survey showed that the mining subsidence reservoirs located in urbanised and industrialised areas provide refuges for rare and legally protected species and that they play an essential role in the dispersal of alien species as well.
DOI: 10.1007/s11270-015-2445-z
ISSN: 0049-6979
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