Invasion
Invasion Description
1st Record: Darsser Ort/Germany/Mecklenberg Bight, Baltic Sea (1873, Gislen 1950)
Geographic Extent
Darsser Ort/Germany/Mecklenberg Bight, Baltic Sea (1873, Gislen 1950, 'common in most Danish waters' Jensen and Knudsen 2005); Kiel/Germany/Kiel Bight (Durr and Wahl 2004); Rostock/Germany/Warnow Estuary (Wittfoth and Zettler 2013)
Vectors
| Level | Vector |
|---|---|
| Alternate | Natural Dispersal |
| Alternate | Hull Fouling |
Regional Impacts
| Ecological Impact | Competition | |
| In experiments in the western Baltic Sea (Kiel, Germany), manipulations of A. improvisus and the Blue Mussel Mytilus edulis, showed that M. edulis outcompeted and replaced A. improvisus. However, when some mussels were removed, to simulate predation, the two species coexisted and out-competed other fouling community species. Amphibalanus improvisus thus has a sub-dominant role in the fouling community of the Western Baltic (Dürr and Wahl 2004). | ||