Wildlife Welfare: River Restoration and Fish Welfare

River restoration - removing barriers, restoring meanders, and improving habitat - dramatically improves fish welfare by enabling natural behaviour and movement.

Key Facts

Over 90% of UK rivers are not in good ecological status under the EU Water Framework Directive
There are approximately 30,000 barriers to fish migration on UK rivers including weirs, dams, and culverts
Atlantic salmon populations have declined by 70% since the 1970s, with barriers a major contributing factor
Removing or bypassing a single barrier can allow fish migration across dozens of kilometres of river
Restored meandering rivers have higher invertebrate diversity - the food base for fish welfare
The Wild Trout Trust and Rivers Trust are leading river restoration across Britain

Welfare Considerations

River restoration is among the most welfare-positive wildlife interventions possible because it benefits entire aquatic communities. Fish that cannot migrate to spawning grounds experience a form of welfare deprivation: unable to complete a fundamental biological drive. Salmon that reach the base of an impassable weir and cannot ascend show persistent, repeated attempts - a behavioural indicator of frustrated motivation. Barrier removal allows fish to access historical habitat, complete migration, spawn, and complete their life cycle. The welfare benefits extend to the full river food web: improved invertebrate communities support fish welfare through better food availability throughout the year.

What You Can Do

Support the Rivers Trust and Wild Trout Trust restoration projects through donations
Volunteer with local river restoration groups for practical habitat improvement action
Advocate for barrier removal on rivers near you through local planning engagement
Choose river-friendly farming and gardening practices to reduce agricultural runoff
Report polluting incidents to the Environment Agency emergency hotline (0800 807060)