Invasion
Invasion Description
1st Record: Estonia/Gulf of Riga (7/2011, Henn Ojaveer, in ICES Advisory Committee on the Marine Environment 2012)
Geographic Extent
Estonia/Gulf of Riga (7/2011, Henn Ojaveer, in ICES Advisory Committee on the Marine Environment 2012); Estonia/Kõiguste Bay & Haapsalu Bay, Gulf of Riga (7/2011, Katajisto et al. 2013; Kuprijanov et al. 2015); Saaremaa Island-Parnu Bay/Finland/Gulf of Finland (2011-2016, Kuprijanov et al. 2017)
Vectors
| Level | Vector |
|---|---|
| Alternate | Ballast Water |
| Alternate | Natural Dispersal |
Regional Impacts
| Ecological Impact | Predation | |
| Predation rates of Palaemon elegans in the Baltic do not differ from that of native P. adspersus, but the invasion has increased the overall density of prawns in the Baltic, and increaed the predation rate ( | ||
| Ecological Impact | Competition | |
| Palaemon elegans and P. adspersus has a stronger preference for vegetated substrate than the native P. adspersus but the species habitat preferences overlap, and some competiton is likely (Kuprinanov et al. 2017). | ||