Acknowledgments
Thanks are given to Vltava River Authority for enabling the fieldwork, colleagues from FishEcU (www.fishecu.cz) for help in the field and expert judgment, Jiří Jarošík and Allan Souza for help with the graphical presentation. This study was supported by the project QK1920011 ”Methodology of predatory fish quantification in drinking-water reservoirs to optimize the management of aquatic ecosystems”, MSM200961901 „The true picture of eDNA“, ERDF/ESF project “Biomanipulation as a tool for improving water quality of dam reservoirs” (No. CZ.02.1.01/0.0/0.0/16_025/0007417) and by the CAS within the program of the Strategy AV 21 (VP21).