European otters recovered from near-extinction following water quality improvements. Their welfare continues to depend on clean waterways, prey availability, and reduced human disturbance.
Otter welfare is closely linked to river ecosystem health and human land management decisions. The recovery of English otters stands as one of the great wildlife conservation success stories — driven primarily by pesticide regulation and water quality improvement rather than direct otter management. The welfare of individual otters depends on undisturbed bankside habitat for breeding, prey-rich waterways, and safe river crossing points. Road mortality at culverts and bridges remains a significant source of injury and death. Providing wildlife-friendly culverts with dry ledges above flood level, reducing pollution, and managing invasive species that deplete otter prey are all achievable welfare improvements that require coordinated environmental management.