Zur Kenntnis des Planktons von zwei kleinen Talsperren des Südharzes (Wipper-Vorsperre, Nordhäuser Talsperre)

Abstract

Heynig, H.: To the knowledge of the plankton of two small reservoirs of the Southern Harz mountains (Wipper-Vorsperre, Nordhäuser Talsperre). - Hercynia 37 (2004): 231 – 247.The plankton community of two small reservoirs in the Southern Harz Mountains (Wipper-Vorsperre, Sachsen-Anhalt and Nordhäuser Talsperre, Thüringen/Germany) was researched during nearly 30 years. Especially the phytoplankton was determined and interpreted taxonomical but also the zooplankton was not neglected. Alltogether 177 species of phytoplankton (incl. Varieties and formae) and 46 species of zooplankton were found. The composition of species shows the differences between the two water reservoirs with regard to their eutrophication: in the catchment area of WV there are 6 villages and partial agriculture, the water is mesotroph; the catchment area of NT is not settled and the water is more oligotroph to mesotroph. Some species of plankton are described and illustrated more in detail.