Phytoplankton was investigated in two localities in the Warta
River located upstream and downstream of the Jeziorsko Dam Reservoir. Spring
and summer peaks of algal development, dominated by diatoms (Bacillariophyceae)
(66.7 to 81.0% of total phytoplankton abundance), were recorded. Green algae
(Chlorophyta) constituted 7.7 to 38.4% while blue-green algae (Cyanophyia) from
1.3 to 13.3% of total phytoplankton abundance. The percentages of other algal
groups were low. Correlations between the abundance of phytoplankton and
temperature, concentration of nitrate nigrogen and phosphorus in water were
determined. The occurrence of taxons abundantly inhabiting either both localities
or individually associated with only one of them was recorded.Zadanie pt. Digitalizacja i udostępnienie w Cyfrowym Repozytorium Uniwersytetu Łódzkiego kolekcji czasopism naukowych wydawanych przez Uniwersytet Łódzki nr 885/P-DUN/2014 zostało dofinansowane ze środków MNiSW w ramach działalności upowszechniającej naukę
