Invasion
Invasion Description
1st record: Kaliningrad (Koenigsberg)/Russia (Germany)/Baltic Sea (1844, Luther 1950)
Geographic Extent
Saaremaa (Osel)/Estonia/Baltic Sea (1908, Luther 1950); Haapsalu (Hapsal)/Estonia/Baltic Sea (1877, Luther 1950); Ventspils (Windau)/Latvia/Baltic Sea (1875, Luther 1950); Klaipeda (Memel)/Lithuania/Baltic Sea (1875, Luther 1950); Kaliningrad (Konigsberg)/Russia (East Prussia)/Baltic Sea (1844, Luther 1950); Gdynia/Poland/Baltic Sea (Furman 1990; Dziubinska, and Janas 2007); Poland/Vistula Lagoon (1917, Jablonska-Barna et al. 2013)
Vectors
| Level | Vector |
|---|---|
| Probable | Hull Fouling |
Regional Impacts
| Economic Impact | Industry | |
| In the Baltic Sea, where it is the only barnacle species present, Amphibalanus improvisus is reported to contribute to hull fouling of ships and the fouling of power plants (Vuorinen et al. 1986). | ||
| Economic Impact | Shipping/Boating | |
| In the Baltic Sea, where it is the only barnacle species present, Amphibalanus improvisus is reported to contribute to hull fouling of ships and the fouling of power plants (Vuorinen et al. 1986). | ||
| Ecological Impact | Herbivory | |
| In experiments, settled Amphibalanus improvisus promoted the growth of the green alga, Enteromorpha intestinalis, by filtering phytoplankton, remineralizing nutrients, and increasing the clarity of the water (Kotta et al. 2006). | ||
| Ecological Impact | Habitat Change | |
| In experiments, settled Amphibalanus improvisus promoted the growth of the green alga, Enteromorpha intestinalis, by filtering phytoplankton, remineralizing nutrients, and increasing the clarity of the water (Kotta et al. 2006). In the central Baltic, A. improvisus was classified as having some habitat impacts, by fouling macroalgae (Bostrom and Bonsdorff 1997, cited by Zaiko et al. 2011). | ||
| Ecological Impact | Trophic Cascade | |
| In experiments, settled Amphibalanus improvisus promoted the growth of the green alga, Enteromorpha intestinalis, by filtering phytoplankton, remineralizing nutrients, and increasing the clarity of the water (Kotta et al. 2006). | ||
| Ecological Impact | Competition | |
| In the Curonian Lagoon, A. improvisus was classified as having some community impacts (Zaiko et al. 2011). | ||