Invasion

Invasion Description

1st Record: Holyhead/Wales/Irish Sea (1957, Ryland 1958)

Geographic Extent

Orkney Islands/Scotland/North Sea (2012-2017, Kakonnen et al. 2018); Kirkwall, Orkney/Scotland/North Sea (Nall et al. 2014); Holyhead/Wales/Irish Sea (1957, Ryland 1958); Rathlin Island/Northern Ireland/Irish Sea (2012, Nunn and Minchin 2012); Rathlin Island pontoon, and Ballycastle, Glenarm, Carrickfergus and BangorMarinas/Northern Ireland/Irish Sea (2012, Porter et al. 2017); Banfor Marina, County Down/Northern Ireland/Irish Sea (2012, Nunn and Minchin 2012); CarlingfiordLough/IrelansWeymouth, Carlingoford Lough/Ireland/Irish sea (2021, O'shughnessy et al. 2023); Waterford/Ireland/Irish Sea (2021, O'Shaughnessy et al. 2023); Dorset/England/English Channel (2004, Bishop et al. 2015); Lymington, Gosport, Portsmouth/England/the Solent (2009, Bishop et al. 2015); Brighton Marina, Sussex/England/English Channel (Ryland et al. 2011); Levington/England/Suffolk Yacht Harbour, English Channel (Ryland et al. 2011); 6 marinas, East Anglia/England/English Channel (2015, Wood et al. 2016); Goesse Sas/Netherlands/Oosterschelde (2000, de Blauwe et al. 2001, abandoned sluice gate and some adjoining pier piles); near Ostend/Belgium/North Sea (2000, de Blauwe et al. 2001, on a pontoon float.)