0548855 - ÚBO 2022 RIV CZ eng J - Journal Article
Ondračková, Markéta - Janáč, Michal - Borcherding, J. - Grabowska, J. - Bartáková, Veronika - Jurajda, Pavel
Non-native gobies share predominantly immature parasites with local fish hosts.
Journal of Vertebrate Biology. Roč. 70, č. 4 (2021), č. článku 21050. E-ISSN 2694-7684
R&D Projects: GA ČR(CZ) GA20-29111S
Institutional support: RVO:68081766
Keywords : Ponto-Caspian gobies * parasite acquisition * larva * generalists * species richness
OECD category: Ecology
Impact factor: 1.460, year: 2021
Method of publishing: Open access
https://bioone.org/journalArticle/Download?urlid=10.25225%2Fjvb.21050

Non-native species are known to escape their parasites following introduction into a new range, but they also often acquire local parasites as a function of time since establishment. We compared the parasite faunas of five non-native Ponto-Caspian gobies (Gobiidae) and local fish species (Perca fluviatilis, Gymnocephalus cernua, Gobio gobio) in three European river systems, the Rivers Rhine, Vistula and Morava, where Ponto-Caspian gobies were introduced 4-13 years prior to the study. Overall parasite species richness was considerably lower in non-native gobies compared to local fish species, and the same result was found at the component and infra-community levels. Both parasite abundance and diversity greatly varied among the regions, with the highest values found in the River Vistula (Wloclawski Reservoir), compared to a relatively impoverished parasite fauna in the River Morava (Danube basin). While only half of parasite species found in local hosts were acquired by non-native gobies, most of the parasites found in gobies were shared with local fish species related either phylogenetically (percids) or ecologically (benthic gudgeon), including the co-introduced monogenean Gyrodactylus proterorhini. As a result, similarity in parasite communities strongly reflected regional affiliation, while phylogenetic distances between fish host species did not play a significant role in parasite community composition. In accordance with other studies, all parasites acquired by gobies in their new range were generalists, all of them infecting fish at the larval/subadult stage, indicating the possible importance of gobies in the life cycle of euryxenous parasites. The absence of adult generalists, particularly ectoparasites with low host specificity, in non-native fish may reflect their generally low abundance in the environment, while an absence of adult endoparasitic generalists was probably related to other factors.
Permanent Link: http://hdl.handle.net/11104/0324901