Scottish salmon rivers are home to several species of European importance, all of which depend on gravel for their survival. Find out what effects gravel workings can have and what you can do to reduce the impacts.
Gravel is larger than sand (2mm) but smaller than boulders (256mm) and is highly mobile. The movement of gravel means the shape and size of a river can change, meaning rising water levels can be accommodated and erosion can be reduced. Gravel movement also creates a varied river bed – deep pools, shallows and exposed accumulations of gravel provide habitats for plants and animals both in and above the water.
Therefore, appropriate gravel management is essential. By extracting or manipulating gravel, a river’s ability to protect itself from flood damage can be impaired. Find advice in this leaflet on different gravel working activities, including flood alleviation, land drainage and fisheries improvements. Discover what actions you should avoid and get recommendations for alternative actions.