Evolution of ecohydrological approach during 60 years of hydrobiological activity at Nicholas Copernicus University, Toruń

In the 1980s, the research on the chemistry of ground waters feeding the lakes of the Tuchola Forest was initiated. Since then, an integrated catchment-balance approach to the research on lakes and their protection has been applied. Typical ecohydrological studies included also research on the run-of-river Włocławek Dam Reservoir (area of ca. 70 km2, water retention time ca. 5 days). Those studies have shown that hydrology has decisive impact on chemistry and biology of this largest Polish run-of-river reservoir.