Rybí společenstvo středního toku říčky Bobrůvky

Zdenka Jurajdová, Michal Janáč, Zdeněk Adámek, Pavel Jurajda: Ústav biologie obratlovců Akademie věd ČR, v. v. i., Květná 8, CZ-603 65, Brno, email: jurajdova@ivb.cz

Jan Grmela: Mendelova univerzita v Brně, Zemědělská 1665/1, CZ-613 00, Brno

Jana Matrková: AOPK ČR, Regionální pracoviště Správa CHKO Žďárské vrchy, Brněnská 39, CZ-591 01, Žďár nad Sázavou

Abstract: In 2021, an ichthyological survey of the middle section of the Bobrůvka stream was carried out under the project “Verification of the Current Occurrence of Minnows (Phoxinus phoxinus) in the Vysočina Region, with updated proposals for protective measures at particular localities in the Regional Action Plan”, initiated by the Nature Conservation Agency of the Czech Republic. A total of 13 fish species were recorded at eight localities, three of which are protected and one non-native to the Czech Republic. The dominant species were chub (Squalius cephalus), gudgeon (Gobio gobio) and spirlin (Alburnoides bipunctatus). The entire middle section of the Bobrůvka provides a suitable environment for the existence and development of a type-specific fish community dominated by rheophilic species. This survey provides a highly necessary update on the state of the fish fauna in the Bobrůvka stream.

Key words: fish survey, common minnow, trout stream, Loučka

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