Otter populations have recovered dramatically in the UK following pollution cleanup and legal protection, but individual otter welfare is still affected by vehicle collisions, fish trap injuries, and habitat quality.
Otter welfare in the UK reflects a conservation success story where population recovery has brought individual animals into increasing contact with anthropogenic hazards. The road collision problem is particularly significant - otters moving between river sections cross roads at predictable culvert and bridge locations, and appropriate wildlife crossing provision at these points would substantially reduce mortality. Otter deaths in unguarded fish traps are entirely preventable through legal requirements for otter guards. Individual otters that survive vehicle strikes suffer from traumatic injuries that require specialist rehabilitation care - the Otter Trust and similar organizations provide critical welfare services for the injured survivors of a recovered but still hazard-exposed population.