Vol. 22 Fasc. 1

Full text Andrzej Hutorowicz, Agnieszka Napiórkowska-Krzebietke - The European Union Water Framework Directive and the ecological status assessment of inland waters          [ORIGINAL ARTICLE]

Full text Abstract Bożena Jaworska, Julita Dunalska, Dorota Górniak, Magdalena Bowszys - Phytoplankton dominance structure and abundance as indicators of the trophic state and ecological status of Lake Kortowskie (northeast Poland) restored with selective hypolimnetic withdrawal          [RESEARCH ARTICLE]

Full text Abstract Anna Kozak, Katarzyna Kowalczewska-Madura, Ryszard Gołdyn, Anna Czart - Phytoplankton composition and physicochemical properties in Lake Swarzędzkie (midwestern Poland) during restoration: Preliminary results          [RESEARCH ARTICLE]

Full text Abstract Agnieszka Napiórkowska-Krzebietke, Andrzej Hutorowicz - Phytoplankton in an ecological status assessment of the vendace-type Lake Dejguny (northeastern Poland)          [RESEARCH ARTICLE]

Full text Abstract Magdalena Grabowska, Hanna Mazur-Marzec - Vertical distribution of cyanobacteria biomass and cyanotoxin production in the polymictic Siemianówka Dam Reservoir (eastern Poland)          [RESEARCH ARTICLE]

Full text Abstract Ewa Dembowska - Diatoms of the lower Vistula River phytoseston          [RESEARCH ARTICLE]

Full text Abstract Elżbieta Zębek, Urszula Szymańska - Gastropods and periphytic algae relationships in the vicinity of a small hydroelectric plant on the Pasłęka River in northeast Poland          [RESEARCH ARTICLE]

Full text Abstract Agnieszka Napiórkowska-Krzebietke - Phytoplankton of artificial ecosystems – an attempt to assess water quality          [RESEARCH ARTICLE]