|The effect of the parasite Phyllodistomum macrocotyle (Trematoda) on heavy metal concentrations in the freshwater mussel Dresissena Polymorpha|
Kraak, M.H.S.; Davids, C. (1991). The effect of the parasite Phyllodistomum macrocotyle (Trematoda) on heavy metal concentrations in the freshwater mussel Dresissena Polymorpha. Neth. J. Zool. 41(4): 269-276
In: Netherlands Journal of Zoology. E.J. Brill: Leiden. ISSN 0028-2960, more
|Authors|| || Top |
The freshwater mussel Dreissena polymorcha can be parasitized by the digenetic trematode Phyllodistomum macrocotyle, which forms sporocysts in the gill tissue. The gill tissue of the mussel is seriously damaged by the parasite and infested animals loose about one-third of their total dry weight. Infested and non-infested mussels were analysed for the heavy metals Cu, Zn, Cd, and Pb. In a number of infested and non-infested animals the gills were seperated from the rest of the soft tissues.Concentrations of Cu, Zn, Cd and Pb in total soft tissues and in the gills were higher in parasitized than in non-parasitized animals. In soft tissues without gills only Cd and Pb concentrations were higher in infested than in non-infested animals.