**Author details**

T. Brázová, V. Hanzelová\* and P. Šalamún

\*Address all correspondence to: hanzel@saske.sk

Institute of Parasitology, Slovak Academy of Sciences, Košice, Slovakia

#### **References**


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**Acknowledgements**

Development Fund (rate 0.9).

**Author details**

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T. Brázová, V. Hanzelová\*

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EPA-823-F-99-019.

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We thank Dr. Ľudmila Turčeková for her cooperation in collecting fish samples and Dr. William Blackhall for his editorial comments on the text. We gratefully acknowledge the funding of this study by the Slovak Research and Development Agency, project No. LPP-0151-07, Grant Agency of the Ministry of Education of the Slovak Republic, and Slovak Academy of Sciences (VEGA), project No. 2/0080/10. The publication has been realized as part of the project of the Centre of Excellence for Parasitology (Code ITMS: 26220120022) supported by Operational Programme "Research & Development" funded by the European Regional

and P. Šalamún

Institute of Parasitology, Slovak Academy of Sciences, Košice, Slovakia

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