Invasion

Invasion Description

1st Established Record: offshore buoys/Netherlands/North Sea (1976, Kerckhof and Cattrijsse 2001)

1st Record: Le Havre/France/English Channel (1851, Kerckhof and Cattrijsse 2001, 'probably from the hull of a ship')

Geographic Extent

offshore buoys/Netherlands/North Sea (Kerckhof and Cattrijsse 2001); offshore buoys/Belgium/North Sea (now established, Kerckhof and Cattrijsse 2001, Kerckhof, pers. comm.); Thomton Bank Wind Farm, 30 km offshore/Belgium/North Sea (2011-2012, de Mesel et al. 2015, 51 32 52.73500 N, 2 55 46.27300E, occasional); No recent records? (Kerckhof , in ICES-WGITMO 2019)