As well as the risk of trapping protected species, there is a risk that the movement of traps and equipment between water courses can spread disease, such as crayfish plague
, which is fatal to native crayfish.
A Department of Agriculture spokesman said yesterday: "Crayfish plague
tends to move upstream but at this location it is already high up the catchment so there may be mortalities further downstream."
Harlioglu, "The harvest of the freshwater crayfish Astacus leptodactylus Eschscholtz in Turkey: harvest history, impact of crayfish plague
, and present distribution of harvested populations," Aquaculture International, vol.
It also carries a fungal disease - crayfish plague
- that has wiped out native crayfish from most rivers in the south of England.
It has also caused a "crayfish plague
" south of the Border by passing on a fungal parasite to the native white claw.
The alien invader carries a fungus-like disease - known as "crayfish plague
" - that ravages the white-clawed crayfish by destroying their insides.
American crayfish can also carry the crayfish plague
, which can devastate a native crayfish population.
The larger American species carry a crayfish plague
which has almost killed off all our white clawed variety.
The white-clawed crayfish is Ireland and Britain's only native freshwater crayfish and around 95% of populations here have already been lost, largely because of the introduction of American signal crayfish and crayfish plague
AMERICAN SIGNAL CRAYFISH carry a disease, crayfish plague
, which is fatal to the British species.
A major threat to the region's important crayfish populations is the spread of crayfish plague
. Introducing traps that may have been used in other rivers risks spreading this disease.