Search for: [Subject and Keywords = biomass] OR [Subject and Keywords = lake animals] OR [Subject and Keywords = Poland] OR [Subject and Keywords = Węgorzewo] OR [Subject and Keywords = Biomasa] OR [Subject and Keywords = Zwierzęta jezior \-\- Polska \-\- Węgorzewo \(region\)] OR [Title = The biomass of the bottom fauna of 42 lakes in the Węgorzewo district] OR [Creator = Pieczyńska, Ewa] OR [Creator = Pieczyński, Eligiusz] OR [Creator = Prus, Tadeusz] OR [Creator = Tarwid, Kazimierz]