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First Irish Population of non-indigenous Crayfish Species found

The National Park & Wildlife Service (NPWS) has confirmed that a population of a non-indigenous crayfish species (NICS) has been found for the first time in the wild in Ireland. There has always been a concern that a NICS may become established in Ireland and this has now been confirmed by the discovery of a population of an Australian Crayfish, the Yabby, Cherax destructor. The NPWS are...
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Crayfish Plague Outbreaks – Update from Biodiversity Ireland

The following is a list of the rivers where outbreaks of Crayfish Plague have been confirmed by diagnostic tests. The map accompanying this information note shows the affected catchments in red and the locations of mortalities or positive tests using environmental-DNA indicated by the star symbol. Please note the map only shows affected sites with proven cases of Crayfish plague. The disease...
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Warning issued over ‘severe and increasing’ threat to native crayfish species

A warning has been re-issued to all water users in Ireland by the Department of Culture, Heritage and the Gaeltacht’s National Parks and Wildlife Service (NPWS), along with the Marine Institute about the “severe and increasing” threat to the native crayfish species.  The warning comes after the confirmation this spring of crayfish plague on the River Maigue, upstream of Adare, Co Limerick. Irel...
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