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In recent years, human diphyllobothriosis has staged a comeback in Swiss, French and Italian sub-alpine regions. The main putative infective source of the causative agent (the tapeworm Diphyllobothrium latum) in these areas is perch (Perca fluviatilis). Therefore, the occurrence of D. latum in this fish species was investigated between 2005 and 2008 in the sub-alpine lakes Maggiore, Lugano and Geneva. Prevalence in fish of Lake Maggiore was 14% (n = 880). In Lake Geneva, 5.1% fillets (n = 532) were infected, whereas perch from Lake Lugano were free from the parasite. These results are discussed in relation to previous studies. Data on fish size and weight indicate that infection of perch by D. latum is independent of age and sex. Abiotic factors considered critical for D. latum life cycle (water temperature and oxygen concentration) characterize the three basins and were related to their infestation frequencies. The presence of this parasite was most likely favoured by warmer, well oxygenated waters. Previous studies indicate that the lake’s trophic state (i.e. content of total phosphorus) influenced the availability of the first intermediate hosts (copepods) of some pseudophyllideans. In our study, no correlation was observed between the amount of phosphorus and the number of copepods in populations of zooplankton. Nevertheless, the trophic states of the three lakes seemed to affect the degree of infection in fish. In conclusion, at least in sub-alpine lakes, abiotic factors such as water temperature, oxygenation and trophic state seem to have an influence on maintaining or preventing perch infection with D. latum. WICHT, Barbara, Costanzo LIMONI, Raffaele PEDUZZI, and Orlando PETRINI. 2009. “Diphyllobothrium Latum (Cestoda: Diphyllobothriidea) in Perch (Perca Fluviatilis) in Three Sub-Alpine Lakes: Influence of Biotic and Abiotic Factors on Prevalence”. Journal of Limnology 68 (2):167-73. https://doi.org/10.4081/jlimnol.2009.167. More Citation Formats ACM ACS APA ABNT Chicago Harvard MLA Turabian Vancouver Download Citation Endnote/Zotero/Mendeley (RIS) BibTeX Downloads Download data is not yet available. Citations List of Cited By : A regional study of the zoonotic broad tapeworm Dibothriocephalus spp. in Northwestern Patagonia (Argentina): origin of fishes and coastal cities as factors affecting infection in fishes Liliana Semenas, Gustavo Viozzi, Marina Arbetman Parasitology Research : 2021 Occurrence of Eustrongylides excisus (Nematoda:Dioctophymatidae) in European Perch (Perca fluviatilis) and Great Cormorant (Phalacrocorax carbo) in Lake Annone, Northern Italy Aurora Rusconi, Paola Prati, Roldano Bragoni, Michele Castelli, Umberto Postiglione, Sara Rigamonti, Davide Sassera, Emanuela Olivieri Journal of Parasitology : 2022 A study of the endohelminths of the European perch Perca fluviatilis L. from the central region of the Danube river basin in Slovakia Ľudmila Juhásová, Alžbeta Radačovská, Eva Bazsalovicsova, Dana Miklisová, Marcela Bindzárová-Gereľová, Ivica Králová-Hromadová ZooKeys : 2019 Occurrence and Spatial Distribution of Dibothriocephalus Latus (Cestoda: Diphyllobothriidea) in Lake Iseo (Northern Italy): An Update Vasco Menconi, Paolo Pastorino, Ivana Momo, Davide Mugetti, Maria Cristina Bona, Sara Levetti, Mattia Tomasoni, Elisabetta Pizzul, Giuseppe Ru, Alessandro Dondo, Marino Prearo International Journal of Environmental Research and Public Health : 2020 Infection patterns of Nile tilapia (Oreochromis niloticus L.) by two helminth species with contrasting life styles Peter Akoll, Robert Konecny, Wilson W. Mwanja, Fritz Schiemer Parasitology Research : 2012 Ivica Králová-Hromadová, Alžbeta Radačovská, Eva Čisovská Bazsalovicsová, Roman Kuchta Advances in Parasitology : 2021 Limnological research in the deep southern subalpine lakes: synthesis, directions and perspectives Nico Salmaso, Rosario Mosello Advances in Oceanography and Limnology : 2010 Climate change and foodborne transmission of parasites: A consideration of possible interactions and impacts for selected parasites Kjersti Selstad Utaaker, Lucy J. Robertson Food Research International : 2015 Encyclopedia of Food Safety J. 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