Affiliations
1 Aquatic Ecosystem Research, University of
Duisburg-Essen, Essen, Germany
2 Centre of Aquatic and Environmental Research (ZWU),
University of Duisburg-Essen, Essen, Germany
3 Senckenberg Research Institute and Natural History
Museum Frankfurt, Gelnhausen, Germany4 Faculty of Biology, University of Duisburg-Essen,
Essen, Germany