Invasion
Invasion Description
1st Record: Fiskebäckskil/Sweden/Skaggerak (1895, Gislen 1950)
Geographic Extent
"Swedish border to southern part of Nordland"/Norway/Skagerrak; Fiskebäckskil/Sweden/Skaggerak (1895, Gislen 1950); Norway/Oslofjord (Brock 1924, cited by Furman and Yule 1989, annual disappearance, colonization cycle); Galto/Sweden/Skaggerak (Furman 1989; Furman 1990)
Vectors
| Level | Vector |
|---|---|
| Alternate | Hull Fouling |
| Alternate | Natural Dispersal |
| Alternate | Ballast Water |
Regional Impacts
| Economic Impact | Shipping/Boating | |
| In the Skagerrak, Sweden, A. improvisus was the dominant organism fouling the hulls of recreational boats, probably because it was more tolerant of hydrodynamic stress than the Blue Mussel, Mytilus edulis, which dominated static fouling plates (Berntsson and Jonsson 2003). | ||