@misc{Lewandowski_Krzysztof_The_1975, author={Lewandowski, Krzysztof and Stańczykowska, Anna}, editor={Polska Akademia Nauk. Instytut Ekologii}, copyright={Creative Commons Attribution BY 3.0 PL license}, address={Warszawa}, howpublished={online}, year={1975}, language={eng}, abstract={The distribution, numbers, biomass, annual production and age structure of Unionidae were investigated. A mathematical relation between the size (age) and weight of a bivalve was determined for two species: Anodonta piscinalis Nilsson and Unio tumidus Philipsson. The filtration abilities and the role of these invertebrates in Mikołajskie Lake were determined.}, type={Text}, title={The occurrence and role of bivalves of the family Unionidae in Mikołajskie Lake}, URL={http://rcin.org.pl/Content/73805/PDF/WA058_89014_P2840-T23_Eko-Pol-A-Nr-2.pdf}, volume={23}, number={2}, journal={Ekologia Polska}, publisher={Polish Scientific Publishers}, keywords={Unionidae, counting, ecology, Poland, Mikołajskie Lake}, }