Wildlife

Otter Welfare: River Health and Population Recovery

Overview of otter welfare, freshwater habitat requirements, and population recovery in the UK.

Key Facts

UK otter populations have recovered strongly since pesticide bans in the 1970s-80s
Otters require clean rivers with abundant fish prey and dense bankside vegetation
Road mortality at river crossings is the leading welfare cause of otter death
Otter holts are legally protected in the UK
River water quality improvements have been critical to population recovery

Welfare Considerations

Otter welfare in 2026 reflects a remarkable recovery story driven by pesticide bans and water quality improvements. Road mortality at culverts and underpasses remains a leading welfare concern. Conservation requires continued investment in water quality, appropriate riverside management, and wildlife-sensitive road design. Otter spraint surveys are citizen science tools that help monitor population health.

What You Can Do

Support river restoration and water quality improvement campaigns
Report road mortality of otters to local wildlife trusts
Advocate for wildlife-friendly road design including otter ledges in culverts