Zoeken
Zoeken kan via de modus 'eenvoudig zoeken' (één veld) of uitgebreid via 'geavanceerd zoeken' (meerdere velden). Zo kan je bv. zoeken op een combinatie van een auteursnaam (auteur), een jaartal (jaar) en een documenttype.
Boekenmand
Nuttige resultaten kan je aanvinken en toevoegen aan een mandje. De inhoud hiervan kan je exporteren of afdrukken (naar bv. PDF).
RSS
Op de hoogte blijven van nieuw toegevoegde publicaties binnen uw interessegebied? Dit kan door een RSS-feed (?) te maken van jouw zoekopdracht.
nieuwe zoekopdracht
Developing ecologically acceptable river flow regimes: a case study of Kielder reservoir and the Kielder water transfer system
Gibbins, C.N.; Soulsby, C.; Jeffries, M.J.; Acornley, R. (2001). Developing ecologically acceptable river flow regimes: a case study of Kielder reservoir and the Kielder water transfer system. Fish. Manage. Ecol. 8: 463-485
In: Fisheries Management and Ecology. Blackwel Science Ltd.: Oxford. ISSN 0969-997X; e-ISSN 1365-2400
|  |
| Auteurs | | Top |
- Gibbins, C.N.
- Soulsby, C.
- Jeffries, M.J.
- Acornley, R.
|
|
|
| Abstract |
Abstract Kielder Reservoir and the Kielder water transfer scheme have been operational since the early 1980s. The hydro-ecological changes that occur in the River North Tyne and the River Wear as a result of Kielder operations are highlighted and release policy changes designed to minimize impacts on salmonid fish are described. The Kielder Reservoir release regime results in sudden and marked changes in flow in the North Tyne. These changes affect the availability of suitable habitat for newly emerged 0+ Atlantic salmon Salmo salar L. and potentially lead to the drying out of areas used for spawning. Physical Habitat Simulation (PHABSIM) models suggest that the reservoir compensation flow provides adequate habitat for older 0+ fish but limits the availability of spawning habitat. A seasonally variable compensation and hydroelectric power (HEP) release regime that limits impacts and increases suitable spawning and 0+habitat is described. Transfers of water to the River Wear result in short-term changes in the abundance of certain invertebrate species, although there is no evidence that the river's invertebrate fauna has been permanently altered. Consequently, it is unlikely that fish are affected indirectly by transfers through reductions in the abundance of their invertebrate prey. Transfers allow abstractions for potable and industrial water supply to continue without breaching the river's statutory Minimum Maintained Flow (MMF). The PHABSIM models suggest that this augmentation helps avoid the loss of salmonid habitat during summer dry periods. Simulation of the impacts of some alternative regimes indicates that salmonid habitat could be increased further but at the expense of natural flow and habitat variation. Research findings do not suggest the need for changes to the transfer release regime. |
IMIS is ontwikkeld en wordt gehost door het VLIZ.
