The impact of signal crayfish (Pacifastacus leniusculus) on the recruitment of salmonid fish in a headwater stream in Yorkshire, England. Knowledge and Management of Aquatic Ecosystems , 2010 ...

An "established population" of invasive crayfish have been found in the North York Moors National Park. Biosecurity signs have been installed along the banks of the River Esk, the Environment ...

A crayfish plague has wiped out the majority of the native population in a Yorkshire river – although they are clinging on in its tributaries. All Sections News you can trust since 1754 ...

NATIVE white-clawed crayfish which are under attack from a foreign invader were at the centre of a rescue attempt yesterday as they were plucked from a city stream and moved to what experts called ...

A stream which is home to one of West Yorkshire's last remaining populations of endangered white-clawed crayfish has been awarded protected status. Luddenden Brook, at Jerusalem Farm nature ...

Despite being championed by a host of celebrity chefs, crayfish 'trapping' is not helping to control invasive American signal crayfish, according to new research. Despite being championed by a ...

Anglers can help in the fight to rid a river of a crayfish interloper threatening to wipe out the native species. The American signal crayfish -- twice as big as its British cousin -- have been ...

Anyone who spots a signal crayfish, alive or dead, is asked to take a photograph and contact Environment Agency. Follow BBC Yorkshire on Facebook , external , X (formerly Twitter) , external and ...

Aggressive American signal crayfish are threatening Britain's native white-clawed crayfish populations because they have better resistance to parasites and are less fussy about what they eat.

A stream which is home to one of West Yorkshire's last remaining populations of endangered white-clawed crayfish has been awarded protected status. Luddenden Brook, at Jerusalem Farm nature ...

The signal crayfish were sighted in the River Esk by Environment Agency officials. Let us know you agree to data collection on AMP. We and our partners use technologies, ...