“…In the Austrian Lake Fuschlsee, one single Triaenophorus procercoid out of 140 was found in an E. gracilis individual, while the remaining procercoids were observed in C. abyssorum (Sichrowsky et al, 2013). Although all C. lavaretus and ~16% of S. umbla investigated in Lake Achensee were infested with T. crassus (Schähle et al, 2014), the prevalence of the parasites was low (0.38%; maximum infection rate, 3.7%; Fig. 2), but comparable to studies from several lakes in Austria (Lahnsteiner et al, 2009;Sichrowsky et al, 2013;Schaufler et al, 2014), France (Hanzelova and Gerdeaux, 2003) or Canada (Watson and Lawler, 1965).…”