River Allen crayfish plague outbreak appeal

An appeal has been launched to safeguard one of the last remaining white-clawed crayfish habitats after the outbreak of a killer disease. More than 100 of the rare native crayfish species have so far died as a result of crayfish plague on Dorset’s River Allen. The disease, carried by non-native American signal crayfish, was first discovered on the river in July. Until recently the River Allen had been identified as a stronghold of the native species.


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