Zooplankton diversity of drainage system reservoirs at an opencast mine Anna Maria Goździejewska, Andrzej Robert Skrzypczak, Ewa Paturej and Jacek Koszałka Knowl. Manag. Aquat. Ecosyst., 419 (2018) 33 Published online: 24 September 2018 DOI: 10.1051/kmae/2018020