Invasion

Invasion Description

1st Records: Hawthorne Cove Marina, Salem/MA/Massachusetts Bay (2007, MIT Sea Grant 2008); Gloucester Coast Guard Station, Gloucester/MA/Gloucester Harbor (2007, MIT Sea Grant 2008)

Geographic Extent

Hawthorne Cove Marina, Salem/MA/Massachusetts Bay (2007, MIT Sea Grant 2008); Gloucester Coast Guard Station, Gloucester/MA/Gloucester Harbor (2007, MIT Sea Grant 2008); Rowes Wharf Marina, Boston/MA/Boston Harbor (2013, Wells et al. 2014)