Non-native gobies share predominantly immature parasites with local fish hosts

Title:

Non-native gobies share predominantly immature parasites with local fish hosts

Creator:

Ondračková, Markéta, Janáč, Michal, Borcherding, Jost, Grabowska, Joanna, Bartáková, Veronika, and Jurajda, Pavel

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:21c01973-5e03-46a6-825e-62bc780d5068
uuid:21c01973-5e03-46a6-825e-62bc780d5068
doi:10.25225/jvb.21050

Subject:

Ponto-Caspian gobies, parasite acquisition, larva, generalists, and species richness

Type:

model:article and TEXT

Format:

počítač and online zdroj

Description:

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.

Language:

English

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Coverage:

1-17

Source:

Journal of Vertebrate Biology | 2021 Volume:70 | Number:4

Harvested from:

CDK

Metadata only:

false