Freshwater crayfish in UK waters face welfare challenges from invasive species displacement, trapping, and the ethical complexities of invasive species management.
Freshwater crayfish management presents a genuine welfare dilemma: signal crayfish are invasive and destroying native biodiversity, but they are also sentient animals capable of experiencing suffering. Standard trapping and killing methods have rarely been evaluated for humaneness. The welfare of native white-clawed crayfish - facing disease, competition, and habitat loss - must also be considered. Compassionate conservation approaches seek methods that minimise signal crayfish suffering while protecting the native species that have disappeared from most UK rivers.