Pupils run trout hatcheries in classrooms
Hundreds of pupils have been rearing brown trout in their classrooms and releasing them into rivers, to help them learn about the environment.
During the three-month project, primary schools situated near the River Clyde learn about stewardship of the river system and its inhabitants.
Pupils from P3-P7 are responsible for running the hatchery - raising eggs and hatchlings and later releasing them.
Clyde in the Classroom is co-ordinated by the Clyde River Foundation.
It now works with more than 40 primary schools, and has involved 25,000 pupils since it started 17 years ago.
Clyde River Foundation catchment manager Willie Yeomans said: "Throughout the project children are introduced to the River Clyde and learn about its history, geography and biodiversity.
"Each class is assigned a Clyde River Foundation scientist as a trout mentor who visits weekly to help monitor the development of the trout and answer any questions."
The Clyde River Foundation researches the ecology of the Clyde and its tributaries and promotes environmental education and community engagement.