Species-specific patterns in cercarial emergence of Diplostomum spp. from snails Radix lagotis

0540772 - BC 2021 RIV AU eng J - Journal Article
Vyhlídalová, T. - Soldánová, Miroslava
Species-specific patterns in cercarial emergence of Diplostomum spp. from snails Radix lagotis.
International Journal for Parasitology. Roč. 50, č. 14 (2020), s. 1177-1188. ISSN 0020-7519. E-ISSN 1879-0135
R&D Projects: GA ČR(CZ) GJ17-20936Y
Institutional support: RVO:60077344
Keywords : eye fluke * trematode cercariae * intermediate hosts * pseudospathaceum niewiadomska * echinoparyphium-recurvatum * trichobilharzia-ocellata * parasite transmission * digenea diplostomidae * spathaceum cercariae * lymnaea-stagnalis * Trematoda * Cercariae * Emergence * Transmission * Diplostomum * Radix lagotis * Freshwater
OECD category: Biodiversity conservation
Impact factor: 3.981, year: 2020
Method of publishing: Limited access
https://www.sciencedirect.com/science/article/pii/S0020751920302514?via%3Dihub

The cercarial emergence patterns of three species of Diplostomum (Diplostomum 'mergi', Diplostomum spathaceum and Diplostomum parviventosum) parasitizing freshwater first intermediate host Radix lagotis sampled in Most Lake, Czech Republic, were studied under various experimental conditions, i.e. field, laboratory and incubator, and seasons, i.e. spring, summer and autumn. We discovered unexpected daily periodicity-dependent species-specific emergence patterns among the three Diplostomum spp. depending on experimental conditions. At the same time, the intraspecific variation of D. spathaceum cercarial release in response to seasonal conditions was observed. We found that a complex array of mechanisms can affect Diplostomum species-specific patterns in cercarial emergence, of which behavioural characteristics of fish related to reproduction and feeding processes are considered the most important factors. This might represent a specific adaptive evolutionary mechanism to maximise transmission success while avoiding competition for host resources. Our results contribute to a better understanding of ecological and epidemiological aspects with respect to specific adaptive strategies compartmentalised among species of Diplostomum and consequences for infection risk in fish hosts. (C) 2020 Australian Society for Parasitology. Published by Elsevier Ltd. All rights reserved.
Permanent Link: http://hdl.handle.net/11104/0318374