Invasion

Invasion Description

None

Geographic Extent

Orkney Islands/Scotland/North Sea (2012-2017, Kakonnen et al. 2018); England/Thames estuary (Crawford 1937; Lincoln 1979); Isle of Wight/England/English Channel(Lincoln 1979); Malahide Marina, Dublin County/Ireland (10/6/2007, Daniels et al. 2015, 1st record for Irelalnd); France/English Channel (Crawford 1937); Netherlands/North Sea (Crawford 1937); Helgoland/Germany/North Sea (1990s, on floating algae, 2010 on rooted kelp. Beerman and Franke 2011)