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 : Impacts of regulation on low flow ecological habitat
Impacts of regulation on low flow ecological habitat
Author : G.J. Vietz1 , M. Sammonds1 and M.J. Stewardson1
The aim of this research is to contribute improved understanding of the effects of flow regulation on stream health. In particular we focus on slow-flowing and shallow aquatic habitats, referred to here as slackwaters, as they play an important and demonstrable role in the ecology of lowland rivers for fish, invertebrates and aquatic plants. Using a 2-dimensional hydrodynamic model (River2D) for the Broken River, north central Victoria, a tributary of the Murray Darling Basin, we demonstrate that elevated regulated flows can reduce the abundance of slackwater habitat by more than half. This preliminary work has consequences for the operation of storages and confirms the long held suspicions that prolonged elevated flow is likely to impact on ecological habitat and ultimately stream health.
File Size : 1,313,167 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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