Survey Details - National Crayfish Plague Surveillance Programme. MOU - NPWS and Marine Institute
National Crayfish Plague Surveillance Programme. MOU - NPWS and Marine Institute
Results of PCR tests for crayfish plague and White-clawed crayfish. Presence / absence data
2018
2022
This programme aimes to determine crayfish plague prevalence and the impact of the disease on the Irish crayfish population.
The programme uses environmental DNA (eDNA) as a primary screening methodology with species specific real-time PCR tests for the presence of Crayfish Plague and White-clawed crayfish filtered from water samples filtered onsite.
Surveillance sites were selected based on the historical distribution of A. pallipes and SACs where A. pallipes is listed as a qualifying interest across Ireland. Catchment selection was as per the Water Framework Directive (WFD) catchment and sub-catchment divisions of the River basin management plan with emphasis on catchments known to be already affected by A. astaci.
June 2018 - ongoing
Field control filtered in the field and Laboratory Control filtered on return to the lab are included. Negative template controls (NTC), negative extraction controls (NPC), Internal Positive Control (IPC) and Positive control material are included in each real-time PCR test.
More information can be found here : https://www.fishhealth.ie/fhu/news-media/news/update-crayfish-plague-ireland-0 https://www.fishhealth.ie/fhu/sites/default/files/FHU_Files/Report%20National%20Crayfish%20Plague%20Surveillance%20program%202018_2019%20-%20Final.pdf https://www.fishhealth.ie/fhu/sites/default/files/FHU_Files/Report%20National%20Crayfish%20Plague%20Surveillance%20Programme%202020-2021.pdf
Collated by the National Biodiversity Data Centre from different sources, National Invasive Species Database, Survey: National Crayfish Plague Surveillance Programme. MOU - NPWS and Marine Institute, National Biodiversity Data Centre, Ireland, accessed 04 November 2025, <https://maps.biodiversityireland.ie/Dataset/397/Survey/1683>
Survey Statistics
73
0
1
Survey species distribution
Terrestrial Map - 10km
Terrestrial Map - 10km
Distribution of the number of species recorded within each 10km grid square (ITM).Marine Map - 50Km
Marine Map - 50Km
Distribution of the number of species recorded within each 50km grid square (WGS84).Survey records distribution
Terrestrial Map - 10km
Terrestrial Map - 10km
Distribution of the number of records within each 10km grid square (ITM).Marine Map - 50Km
Marine Map - 50Km
Distribution of the number of records within each 50km grid square (WGS84).Records per year
Species per year