The European mink is one of Europe's most critically endangered mammals, surviving in tiny wild populations and maintained in captive breeding programmes with specific welfare requirements for this semi-aquatic carnivore.
European mink in conservation breeding programmes face welfare challenges inherent in captivity for a solitary, highly territorial, semi-aquatic carnivore. Inadequate housing without water access for swimming and hunting prevents expression of fundamental natural behaviours. Social housing of adults causes chronic aggression and stress. However, conservation breeding is an essential lifeline for the species, and welfare-positive captive management — including water access, environmental enrichment, and individual housing for adults — enables the maintenance of viable breeding populations for reintroduction.