Gravel cleaning at Langford Lakes to encourage salmon
A project is under way in south Wiltshire to try and boost the levels of salmon in local rivers.
The gravel at Langford Lakes in Wylye valley is being cleaned by the Wiltshire Wildlife Trust and the Environment Agency.
It is hoped it will encourage salmon redds, or spawning nest areas.
The nature reserve, between Warminster and Salisbury, is made up of three lakes and part of the river Wylye. It covers more than 20 hectares.
Silt can smother eggs and prevent them from hatching so clean gravels are needed for them to survive.
The wildlife trust hopes salmon born from these eggs will return in subsequent years to spawn again.