Example: Canoeing recreational quality

There being no existing models predicting the effect of weir modification on the utility of a river for canoeing, the relationship needs determining by consulting with canoe groups. Preliminary contact with a canoe group has resulted in the following river and weir parameters being identified as important to recreational quality: Low crashing roar, damp cool feeling on your face, cascading foam and water; weirs are obvious, and to many, attractive landmarks along the rivers of the Don catchment. They also have a large effect on river ecology, hydrology and morphology. The problem Post heavy industry, the recovery of the region’s rivers has resulted in different aspirations for their ecosystems. Some require modifications to the weirs if they are to be realised e.g. the return of salmon require installation of fis