Framlingham Environmental - Crayfish site moniyoring and trapping - Crayfish Traps, White-Clawed Crayfish, Signal Crayfish, Environment Agency

White-clawed crayfish

Signal Crayfish (Lgcfm & Ulquiorra), ZT2 Download Library Wiki

Dams impact crayfish assemblages and genetic structure. - Cahaba River Society

Signal Crayfish {Pacifastacus leniusculus}

Invasive Species Series: Signal Crayfish

Framlingham Environmental - Crayfish site moniyoring and trapping - Crayfish Traps, White-Clawed Crayfish, Signal Crayfish, Environment Agency

Focus on Crayfish - Unlocking the SevernUnlocking the Severn

American Signal Crayfish: A Losing Battle?

Crayfish in canals and rivers - The Inland Waterways Association

How to Catch Signal Crayfish in the UK

Endangered crayfish rediscovered in Hampshire for first time in over 30 years