Invasion
Invasion Description
1st Record: Prince Edward Island/Savage Harbour (Locke et al. 2007)
Geographic Extent
Codroy/Newfoundland/Gulf of St. Lawrence (2013-2014, McKenizie et al. 2014, 47.880, -59.399); Prince Edward Island/Savage Harbour (Locke et al. 2007); Prince Edward Island/Brudenell Estuary (2005, Ramsay et al. 2008); St. Peter’s Bay/Prince Edward Island/St. Peter’s Bay, Gulf of St. Lawrence (Bock et al. 2011); Prince Edward Island/Cardigan River (Bock et al. 2011); Aspy Bay, Cape Breton Island/Nova Scotia/Gulf of St. Lawrence (Bock et al. 2011); Cheticamp/Cape Breton Island/Nova Scotia/Gulf of St. Lawrence (2006-2009, Sephton et al. 2011)
Vectors
| Level | Vector |
|---|---|
| Alternate | Hull Fouling |
| Alternate | Fisheries Accidental (not Oyster) |
Regional Impacts
| Economic Impact | Fisheries | |
| Botrylloides violaceus was seen overgrowing mussel lines on Prince Edward Island (Gittenberger 2009). High-pressure water spraying reduced fouling of mussels. However, fouling by Botryllus schlosseri and Botrylloides violaceus had little effect on mussel growth and production (Arens et al. 2011). The abundance of B. violaceus was much smaller than that of B. schlosseri, so impacts were smaller (Paetzold et al. 2012)/ | ||