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The Efficacy of Manual Gravel Cleaning as a Means of Improving Salmonid Spawning Grounds. - SF0206

R&D Summary Objectives:- Measure the particle size distribution of the river bed gravels used by spawning salmon, before and after manual cleaning, and monitor the removal of fine particulate material. Key customer purpose:- Provide an assessment of the value of cleaning gravel beds as a means of improving spawning ground quality and enhancing salmonid stock densities.
To gather data on the changes in physical nature of the cleaned spawning gravels, and to assess the longevity of any beneficial changes recorded. To assess the impact of gravel cleaning on the macro-invertebrate fauna of the stream
Time-Scale and Cost
From: 1991

To: 1994

Cost: £47,750
Contractor / Funded Organisations
Natural Environment Research Council
Fields of Study
Freshwater Fisheries