Despite being championed by a host of celebrity chefs, crayfish ‘trapping’ is not helping to control invasive American signal crayfish, according to new research by UCL and King’s College London.
There have been grave concerns within the science community and amongst conservationists that American signal crayfish are wiping out other species of crayfish across Europe—including Britain’s only native crayfish, the endangered white-clawed crayfish.
In their new study, published in the Journal of Applied Ecology, the researchers find that trapping is ineffective in determining and controlling signal crayfish numbers, as the vast majority of individuals are too small to catch using standard baited traps. MORE
Header image: Eleri Pritchard.