American mink farmed for fur have established feral populations across Europe and beyond, affecting native wildlife and raising unique welfare questions.
Feral mink from escaped fur farm populations cause substantial suffering among native prey species - water voles can be eliminated from entire riverine systems within years. The mink are not culpable for their situation. Management programs that use live traps followed by humane euthanasia minimize mink suffering while protecting prey populations. This represents a genuine welfare trade-off with no perfect answer.