Journal ArticleDOI
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
TLDR
In this paper, the authors assess factors influencing the prevalence and abundance of plerocercoids in fishes that could increase the risk of transmission of Dibothriocephalus spp. in Andean Patagonian lakes.Abstract:
Diphyllobothriosis was first recorded in humans in Argentina in 1892 and in introduced salmonids in 1952. The aim of this work is to assess factors influencing the values of prevalence and abundance of plerocercoids in fishes that could increase the risk of transmission of Dibothriocephalus spp. in Andean Patagonian lakes. We analysed two key issues potentially related to the occurrence of tapeworms in fish: the presence of cities on coastlines (as potential sources of eggs to nearby lakes) and the difference between native and exotic fishes in susceptibility to infection. We investigated the probability of finding parasites in fish, the variation in parasite abundance in different environments and the relationship between host length and occurrence of plerocercoids. A total of 3226 fishes (belonging to six autochthonous and four introduced species) were analysed between 2010 and 2019 in eight environments. Plerocercoids were counted, and a subset was determined molecularly to species level. Two species, Dibothriocephalus latus and Dibothriocephalus dendriticus, were identified from both salmonids and native fishes, this being the first molecular confirmation of these tapeworm species parasitizing native South American fishes. Salmonids had higher levels of infection than native fishes, and these levels were higher in aquatic environments with a city on their coastline. Transmission to humans seems to occur mainly through Oncorhynchus mykiss, which showed the highest infection values and is the species most captured by fishers. Based on previous data and the present results, eggs shed by humans, dogs and gulls in cities could be the principal factors in maintaining the life cycle of this parasite in surrounding aquatic environments.read more
Citations
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Mitochondrial and microsatellite data show close genetic relationships between Dibothriocephalus latus from South America (Argentina) and Europe (the Alpine lakes region)
TL;DR: The data on the mitochondrial genes, the allelic structure of microsatellite loci, and the principal coordinate analysis showed close genetic relationships between D. latus from Argentina and the Alpine lakes region, supporting the hypothesis of the European origin of the broad fish tapeworm from South America.
Journal ArticleDOI
Checklist of the cestode parasites of wild birds of Argentina.
TL;DR: An annotated checklist of the cestode parasites of Argentinean wild birds is presented, as the result of a compilation of parasitological papers published between 1900 and April 2021.
Journal ArticleDOI
First Report of Zoonotic Tapeworms, Dibothriocephalus latus (Linnaeus, 1758) and D. dendriticus (Nitzsch, 1824), and Other Endohelminth Parasites in Chinook Salmon, Oncorhynchus tshawytscha, in Chile
TL;DR: In this article , Dibothriocephalus latus and Dendriticus were identified for the first time, using morphological and molecular procedures, in a population of introduced Chinook salmon in Chile.
Journal ArticleDOI
Ups and downs of infections with the broad fish tapeworm Dibothriocephalus latus in Europe (Part II) and Asia from 1900 to 2020
TL;DR: The broad fish tapeworm, Dibothriocephalus latus (Diphyllobothriidea), is one of the most important causative agents of D. latus in Europe as mentioned in this paper .
Journal ArticleDOI
Genetic characterization of Dibothriocephalus latus and Dibothriocephalus dendriticus (Cestoda: Diphyllobothriidae) from Chile based on haplotype analysis using mitochondrial DNA markers.
TL;DR: In this paper , the authors investigated the genetic characteristics of D. dendriticus from Chile by haplotype network analysis of mitochondrial cytochrome c oxidase subunit I gene (cox1) and cob gene (cob), as well as their origins.
References
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Journal ArticleDOI
Parasites of the “Peladilla,” Aplochiton zebra (Osmeriformes: Galaxiidae), from Patagonia (Argentina and Chile)
TL;DR: This checklist contributes 11 new records of parasites from A. zebra from surveys in Argentinean Patagonia and to compile the published information from Argentina and Chile.
Journal Article
Helminth parasites of Larus dominicanus in Argentinian Patagonia
Ana Kreiter,Liliana Semenas +1 more
TL;DR: The presence of 9 endohelminths was quoted for Larus dominicanus of which 6 were new citations in Patagonia (Argentina) for this host: Stephanoprora, Cryptocotyle, Anomotaenia, Polymorphus, Contracaecum and Capillaria.
Journal ArticleDOI
First Molecular Identification of Diphyllobothrium dendriticum Plerocercoids from Feral Rainbow Trout (Oncorhynchus mykiss) in Chile
TL;DR: Findings and previous reports of plerocercoids of Diphyllobothrium spp.
Journal ArticleDOI
Genetic signals of artificial and natural dispersal linked to colonization of South America by non-native Chinook salmon (Oncorhynchus tshawytscha)
Daniel Gomez-Uchida,Diego Cañas-Rojas,Carla M. Riva-Rossi,Javier Ciancio,Miguel Pascual,Billy Ernst,Eduardo Aedo,Selim Musleh,Francisca Valenzuela-Aguayo,Thomas P. Quinn,James E. Seeb,Lisa W. Seeb +11 more
TL;DR: These findings support a model of colonization in which high‐diversity artificial populations established first; some of these populations exhibited significant admixture resulting from propagule pressure, and low-diversity natural populations were likely subsequently founded from a reduced number of individuals.
Journal ArticleDOI
Rapid identification of nine species of diphyllobothriidean tapeworms by pyrosequencing.
Tongjit Thanchomnang,Tongjit Thanchomnang,Chairat Tantrawatpan,Chairat Tantrawatpan,Pewpan M. Intapan,Oranuch Sanpool,Oranuch Sanpool,Viraphong Lulitanond,Somjintana Tourtip,Hiroshi Yamasaki,Wanchai Maleewong +10 more
TL;DR: A pyrosequencing method was found to be a reliable tool not only for species identification of diphyllobothriids, but also for epidemiological studies of cestodiasis caused by DiphyllOBothriidean tapeworms at public health units in endemic areas.
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