Invasion

Invasion Description

1st record: Shanklin (Isle of Wight)/England/English Channel (Holmes 1897)

Geographic Extent

Orkney Island/Scotland/North Sea (2012-2017, Kakonnen et al. 2018); Shanklin (Isle of Wight)/England/English Channel (Holmes 1897); (Isle of Wight)/England/English Channel, east to Germany and Denmark; Weymouth/England/English Channel (1912, Westbrook 1930) Ballantrae/Scotland/Irish Sea (1927, Westbrook 1930); Dublin area/Ireland/Irish Sea (2021, O' Langrune, Normandy/France/English Channel (1927, Westbrook 1930); Denmark/North Sea (1900, Thomsen et al. 2007); Helgoland/Germany/North Sea; Denmark/Limfjord; Orkney Islands/England/North Sea; Vlissingen Yacht Harbor/Netherlands/Westerschelde (2011, Stegenga and Karremans 2015)sShaughnessy et al. 2023);