IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
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You are here : eLibrary : IAHR World Congress Proceedings : 34th Congress - Brisbane (2011) : THEME 5: Environmental Hydraulics and Hydrology : Behavioural experiments on the design of downstream fish passage facilities for potamodromous specie...
Behavioural experiments on the design of downstream fish passage facilities for potamodromous species
Author : M. Cuchet1, M. Mühlbauer2, C. Ratschan2, A. Hartlieb1 and B. Brinkmeier3
Whereas upstream fish migration facilities are rather well established, there remains a lack of efficient downstream fish migration facilities. Following the main flow most fish pass through the turbines which results in major damages and mortality rates. The main challenges of downstream fish migration are to prevent fish from passing through the turbines and furthermore enable them to find the entrance of the downstream passage. A conceptual solution was investigated in the laboratory of Hydraulic and Water Resources Engineering of Technische Universität München. A life size experiment with potamodromous species was conducted to study the fish behaviour at the intake of a hydraulic structure. In a large open air lab flume the possibilities to shield the fish from crossing through a screen and lead them to a surface bypass with an inclined trash rack was examined. Different trash rack inclinations and bypass designs were tested.
File Size : 1,091,487 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 34th Congress - Brisbane (2011)
Article : THEME 5: Environmental Hydraulics and Hydrology
Date Published : 01/07/2011
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