Pumpspeicherwerke und Hechtbrut—ein Modellversuch |
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| Authors: | W. Geiger H. J. Meng dipl. Natw. ETH Chr. Ruhlé dipl. Forsting. ETH Chr Ruhlé |
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| Affiliation: | 1. Eidg. Anstalt für Wasserversorgung, Abwasserreinigung und Gew?sserschutz (EAWAG), CH-8600, Dübendorf
2. Institut für Gew?sserschutz und Wassertechnologie der ETH Zürich, Zürich, Schweiz
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| Abstract: | The effects of periodic, simulated water level fluctuations on northern pike fry produced by pumped-storage operations were examined. Daily fluctuations of 10 cm caused a significant increase in the daily mortality rate. Waves reduced the detrimental effect of water level lfuctuations, at least during the adhesive phase of fry. |
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