Invasion
Invasion Description
1st record: Bergen/Norway/North Sea (1919, Hopkins 2002)
Geographic Extent
'entire coastline', Norway (1919, South and Tittley 1987, Hopkins 2002; Peña et al. 2014, maerl beds); Shetland Islands/Norwegian Sea (1949, South and Tittley 1987; 2012-2014, Collin et al. 2015, 4 sites)
Vectors
| Level | Vector |
|---|---|
| Alternate | Hull Fouling |
| Alternate | Natural Dispersal |