Category:Media from Pantoja et al - 10.1051/parasite/2021054

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Authors: Camila Pantoja, Anna Faltýnková, Katie O’Dwyer, Damien Jouet, Karl Skírnisson and Olena Kudlai

(2021). "Diversity of echinostomes (Digenea: Echinostomatidae) in their snail hosts at high latitudes". Parasite 28: 59. DOI:10.1051/parasite/2021054. ISSN 1776-1042.

Diversity of echinostomes (Digenea: Echinostomatidae) in their snail hosts at high latitudes 

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Instance of	scholarly article
Main subject	Echinostomatidae cercaria biodiversity
Author	Camila Pantoja (1) Anna Faltýnková (2) Katie O’Dwyer (3) Damien Jouet (4) Karl Skírnisson (5) Olena Kudlai (6)
Published in	Parasite
Copyright license	Creative Commons Attribution 4.0 International (2021–)
Publication date	2021
Authority file  Q107863377 DOI: 10.1051/PARASITE/2021054 ZooBank publication ID: 3A6166C0-37C7-4EC4-8F5E-30A6947434A8 Reasonator Scholia Wikidocumentaries PetScan statistics WikiMap Locator tool KML file Search depicted

Abstract
The biodiversity of freshwater ecosystems globally still leaves much to be discovered, not least in the trematode parasite fauna they support. Echinostome trematode parasites have complex, multiple-host life-cycles, often involving migratory bird definitive hosts, thus leading to widespread distributions. Here, we examined the echinostome diversity in freshwater ecosystems at high latitude locations in Iceland, Finland, Ireland and Alaska (USA). We report 14 echinostome species identified morphologically and molecularly from analyses of nad1 and 28S rDNA sequence data. We found echinostomes parasitising snails of 11 species from the families Lymnaeidae, Planorbidae, Physidae and Valvatidae. The number of echinostome species in different hosts did not vary greatly and ranged from one to three species. Of these 14 trematode species, we discovered four species (Echinoparyphium sp. 1, Echinoparyphium sp. 2, Neopetasiger sp. 5, and Echinostomatidae gen. sp.) as novel in Europe; we provide descriptions for the newly recorded species and those not previously associated with DNA sequences. Two species from Iceland (Neopetasiger islandicus and Echinoparyphium sp. 2) were recorded in both Iceland and North America. All species found in Ireland are new records for this country. Via an integrative taxonomic approach taken, both morphological and molecular data are provided for comparison with future studies to elucidate many of the unknown parasite life cycles and transmission routes. Our reports of species distributions spanning Europe and North America highlight the need for parasite biodiversity assessments across large geographical areas.