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RNDr. Petra Horká, Ph.D.

Ekologie a chování ryb

Research Interests

Research in my group is focusing on various apects of fish ecology and behaviour using combination of field surveys and laboratory experiments. Our current research interest include 1) trophic ecology of fish in anthropogenically impacted rivers using δ15N and δ13C 2) validation of a new animal model of schizophrenia 3) using genomic DNA as a proof of fish meat adulteration and 4) factors influencing movement activity of fish in rivers.



Assistant professor


Contact Information

Institute for Environmental Studies

Faculty of Science, Charles University

Benátská 2, 128 01 Praha 2, Czech Republic

Phone: +420-22195 1896, +420-732 648 965

E-mail: petra.horka@natur.cuni.cz



Environmental issues, background examples and solutions (MO550P111)

Limnology  (MO550P89)

Limnological methods – field course (MO550P92)

Modern methods in ichthyological research (MO550P98)




Research projects

QK 191-0231 New approaches for the proof of fish meat adulteration using genomic DNA; Co-Principal Investigator (2019-2023)



Horka, P., Horky, P., Slavik, O. (2019). Effect of implanting a passive integrated transponder tag in juvenile chub, Squalius cephalus (L.), on their condition, growth and survival. European Journal of Environmental Sciences, in press

Truhlarova, V., Musilova, Z., Horka, P. (2019). Opsin gene expression and vision modification during ontogeny in European cyprinid fishes. Frontiers in Marine Science DOI: 10.3389/conf.fmars.2019.07.00047 

Hanzelka, J., Horká, P., Reif, J. (2019). Spatial gradients in country-level population trends of European birds. Diversity and Distributions, doi:10.1111/ddi.12945

Slavík, O., Horký, P., Maciak, M., Horká, P., Langrová, I. (2018). Diel movement of brown trout, Salmo trutta, is reduced in dense populations with high site fidelity, Ecology and Evolution, doi.10.1111/jfr3.12332 

Rutkayová, J., Vácha, F., Maršálek, M., Beneš, K., Civišová, H., Horká, P., Petrášková, E., Rost, M., Šulista, M. (2017). Fish stock losses due to extreme floods - findings from pond-based aquaculture in the Czech Republic. Journal of Flood Risk Management, doi.10.1002/ece3.3981

Horká, P., Sychrová, O., Horký, P., Slavík, O., Švátora, M., Petrusek, A. (2017). Feeding habits of the alien brook trout Salvelinus fontinalis and the native brown trout Salmo trutta in Czech mountain streams. Knowledge and Management of Aquatic Ecosystems, 418, 6. 

Horká, P., Horký, P., Randák, T., Turek, J., Rylková, K., Slavík, O. (2015). Radio-telemetry shows differences in the behaviour of wild and hatchery-reared European grayling Thymallus thymallus in response to environmental variables. Journal of Fish Biology, 86, 544-557. 

Horký, P., Horká, P., Jurajda, P., Slavík, O. (2013). Young-of-the-year (YOY) assemblage sampling as a tool for assessing the ecological quality of running waters. Journal of Applied Ichthyology, 29, 1040–1049. 

Horká, P., Horký, P., Slavík, O., Opatřilová, L. (2012). Diurnal behavioural patterns and spread of the Ponto-Caspian invader Hemimysis anomala G. O. SARS, 1907 (Crustacea, Mysidacea) in the Elbe River, Czech Republic. International Review of Hydrobiology, 97, 454–462. 

Musil, J., Horký, P., Slavík, O., Zbořil, A., Horká, P. (2012). The response of the young of the year fish to river obstacles: Functional and numerical linkages between dams, weirs, fish habitat guilds and biotic integrity across large spatial scale. Ecological Indicators, 23, 634–640. 

Horká, P., Ibbotson, A., Jones, J. I. Cove, R. J., Scott, L. J. (2010). Validation of scale-age determination in European grayling Thymallus thymallus using tag-recapture analysis. Journal of Fish Biology, 77, 153–161. 

Kulíšková, P., Horký, P., Slavík, O., Jones, J. I. (2009). Factors influencing movement behaviour and home range size in ide Leuciscus idus. Journal of Fish Biology, 74, 1269–1279. 

Available at: https://www.researchgate.net/profile/Petra_Horka/publications


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