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Invasive fish species Neogobius melanostomus (Gobiidae) in the Danube River: parasite fauna and condition status in native and non-native area of distribution

Basic information
Original title:Invasive fish species Neogobius melanostomus (Gobiidae) in the Danube River: parasite fauna and condition status in native and non-native area of distribution
Authors:Kateřina Francová, Markéta Ondračková, Matej Polačik, Pavel Jurajda
Further information
Citation:FRANCOVÁ, Kateřina, Markéta ONDRAČKOVÁ, Matej POLAČIK and Pavel JURAJDA. Invasive fish species Neogobius melanostomus (Gobiidae) in the Danube River: parasite fauna and condition status in native and non-native area of distribution. In NEOBIOTA: TOWARDS A SYNTHESIS, 5th European Conference on Biological Invasions, Praha. Book of abstracts, str. 142. 2008. ISBN 978-80-86188-29-4.Export BibTeX
@proceedings{848758,
author = {Francová, Kateřina and Ondračková, Markéta and Polačik, Matej and Jurajda, Pavel},
booktitle = {NEOBIOTA: TOWARDS A SYNTHESIS, 5th European Conference on Biological Invasions, Praha. Book of abstracts, str. 142.},
keywords = {round goby; parasites; Danube},
language = {eng},
isbn = {978-80-86188-29-4},
title = {Invasive fish species Neogobius melanostomus (Gobiidae) in the Danube River: parasite fauna and condition status in native and non-native area of distribution},
year = {2008}
}
Original language:English
Field:Ecology
Type:Conference abstract
Keywords:round goby; parasites; Danube

We investigated community of metazoan parasites and condition status of round goby in three stretches of the River Danube - in Bulgaria (native population of round goby), Slovakia and Austria (introduced populations) - during 2005 and 2006. Introduction of parasite species non-native for the Slovak and Austrian sections of the Danube River together with round goby was not observed. Instead, introduced round goby has been infected with several new parasite species that are not known in its native population. Parasite abundance did not significantly differ between native and itintroduced goby populations. Comparison of condition indices revealed better condition status of round goby in the areas of its introduction, but no relationship between condition indices values and parasite abundance was observed. Therefore, parasitism is not considered to be a significant factor affecting better condition status and expansion of round goby in the middle Danube River.

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