First reported in the wild
Occasionally present, casual, vagrant, migratory
Craspedacusta sowerbii was observed for the first time in Ireland at five localities in two separate river catchments (Shannon and Erne) during the summer of 2013 (Minchin, et al, 2016).
Records submitted to Data Centre in 2020
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Minchin, D., Caffrey, J., Haberlin4, D., Germaine, D., Walsh, C. , Boelens, R. and Doyle, T. (2016) First observations of the freshwater jellyfish Craspedacusta sowerbii Lankester, 1880 in Ireland coincides with unusually high water temperatures. BioInvasions Records . Volume 5, Issue 2: 67–74