Invasion
Invasion Description
1st Record? Bailey Island/ME/Casco Bay (2004, Pratt and Grason 2007)
Geographic Extent
Bailey Island/ME/Casco Bay (2004, Pratt and Grason 2007); Spring Point Marina, South Portland/ME/Casco Bay (2010, Massachusetts Office of Coastal Zone Management 2013); Port Harbor Marine, South Portland/ME/Casco Bay (2007, MIT Sea Grant 2008); Maine Yacht Center, Portland/ME/Casco Bay (2007, MIT Sea Grant 2008); Brewer South Freeport Marina, South Freeport/ME/Casco Bay (2007, MIT Sea Grant 2008; 2010, Massachusetts Office of Coastal Zone Management 2013)
Vectors
| Level | Vector |
|---|---|
| Alternate | Hull Fouling |
| Alternate | Ballast Water |
| Alternate | Natural Dispersal |
Regional Impacts
| Ecological Impact | Food/Prey | |
| Membranipora membranacea provides an additional food resource for the nudibranch Onchidoris muricata, possibly allowing it to reproduce earlier in the season (Pratt and Grason 2007). | ||