Aquatic Animals

Wild Salmon and Gravel Bed Restoration

Restoring gravel beds used by salmon for spawning is a high-impact welfare intervention that enables successful reproduction in degraded rivers.

Key Facts

Salmon require clean gravel with water flowing through to incubate eggs
Sediment smothering gravel beds prevents successful spawning and egg development
Gravel jetting and augmentation programmes restore spawning habitat in degraded rivers
Successful spawning habitat restoration has improved salmon numbers in some rivers
Agricultural run-off and urban drainage are primary sources of sediment smothering gravel

Welfare Considerations

Gravel bed degradation prevents salmon from completing their lifecycle, causing the welfare harm of failed migration and spawning. Eggs smothered by sediment die from oxygen deprivation. Restoring gravel bed quality enables natural spawning behaviour and successful reproduction. Addressing the sources of sediment through land management changes provides longer-term protection while gravel restoration provides immediate habitat improvement.

What You Can Do

Support river restoration projects including gravel bed restoration
Advocate for land management incentives reducing sediment run-off from farmland
Participate in river monitoring programmes tracking spawning habitat quality
Donate to conservation organisations implementing gravel restoration programmes
Reduce garden activities that increase surface run-off into waterways