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\bibitem{Slavik_etal2007} Slavik, O., Horky, P., Bartos, L., Kola, J., Ova, R., \& Randa, T. (2007). Diurnal and seasonal behaviour of adult and juvenile European catfish as determined by radio-telemetry in the River Berounka, Czech Republic. \textit{Journal of Fish Biology}, \textit{71}, 101--114.

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