Invasion

Invasion Description

1st Records: Cape Ann Marina, Gloucester/MA/Massachusetts Bay (2000, MIT Sea Grant 2007); Hawthorne Cove Marina, Salem/MA/Salem Harbor (Massachusetts Bay) (2000, 2003, MIT Sea Grant 2007)

Geographic Extent

Cape Ann Marina, Gloucester/MA/Massachusetts Bay (2000, MIT Sea Grant 2007); Niles Beach, Gloucester/MA/Gloucester Harbor (2006, MIT Sea Grant 2014); Hawthorne Cove Marina, Salem/MA/Salem Harbor (Massachusetts Bay) (2000, 2003, 2011, MIT Sea Grant 2007); Boston Harbor Islands/MA/Boston Harbor (Bell et al. 2005);; Rowes Wharf, Boston/MA/Boston Harbor (2018,