Invasion
Invasion Description
1st Record: Poland/Vistula River and Lagoon (2000, Jazdzewski et al. 2005)
Geographic Extent
Poland/Vistula River and Lagoon (2000, Jazdzewski et al. 2005; dominant by 2007, Surowiec and Dobrzycka-Krahel 2008; Grabowski et al. 2009; Dobrzycka-Krahel et al. 2013; Jablonska-Barna et al. 2013); Poland/Puck Bay (2001, Szaniawska et al. 2003); Lithuania/Curonian Lagoon (Daunys and Zettler 2005); Latvia/Lake Liepaja (6/7/2012, Strode et al. 2013)
Vectors
| Level | Vector |
|---|---|
| Alternate | Canal |
| Alternate | Ballast Water |
Regional Impacts
| Ecological Impact | Competition | |
| Gammarus tigrinus has a strong competitive impact in the Vistula Lagoon, replacing natives and other invaders (Jazdzewski et al. 2005; Grabowski et al. 2006; Zaiko et al. 2011). By 2008-2010, G. tigrinus was dominant at most stations in the Vistula lagoon, and the native species G. zaddachi and G. duebeni were extinct (Dobrzycka-Krahel et al. 2016). Impacts in the Gulf of Gdansk were classified as 'moderate', and those in the Curonian Lagoon as 'low' (Zaiko et al. 2011). | ||