1. Section Parasitology, Bernhard Nocht Institute for Tropical Medicine; Bernhard-Nocht-Str. 74 20359 Hamburg Germany
2. Research Group Aquatic Ecology and Nature Conservation, Institute for Biology and Environmental Sciences; Carl von Ossietzky University; 26111 Oldenburg Germany
3. Goethe-University (GU), Institute for Ecology, Evolution and Diversity, Biodiversity and Climate Research Centre (BiK-F); Senckenberg Gesellschaft für Naturforschung (SGN); Max-von-Laue-Strasse. 13 Frankfurt am Main 60438 Germany
4. Department Tropical Medicine; Military Hospital Hamburg; Bernhard-Nocht-Str. 74 20359 Hamburg Germany