IWSÖ | Institut für Wasserwirtschaft Siedlungswasserbau und Ökologie
Untersuchung einer akustischen Fischscheucheinrichtung
Untersuchung einer akustischen Fischscheucheinrichtung
Investigation of an acoustic fish repelling system
Fish migrations are hampered by transverse structures in the rivers. Nowadays exists a sufficient knowledge about the construction of well-functioning fish passes for upstream migration, but the difficulties about the downstream migration are still largely unexplored. Mechanical systems have different techniques using fences and screens. These systems lead to good results when sufficiently narrow clear widths are taken into account. However, they require well-functioning cleaning devices to ensure a continuous water flow. High costs for installation and maintenance are the result. Content of the presented project is the efficiency control of an acoustic repelling system as an alternative or extension to mechanical systems.
Download: Final report