Species Regional Summary
Botrylloides violaceus
Massachusetts Bay ( N170 )

Invasion History Vectors Impacts References

Invasion

Invasion Description

1st Records: MWRA Quincy (sewage plant)/MA/Massachusetts Bay (2000, MIT Sea Grant 2003); Bay Pointe Marina, Quincy/MA/Massachusetts Bay (2000, MIT Sea Grant 2003); Black Falcon Terminal, Boston/MA/Boston Harbor (2000, MIT Sea Grant 2003); Deer Island, Boston/MA/Boston Harbor (2000, MIT Sea Grant 2003); Rowes Wharf, Boston/MA/Boston Harbor (2000, MIT Sea Grant 2003); Constitution Marina/Boston/MA/Boston Harbor (2000, MIT Sea Grant 2003); Hawthorne Cove Marina, Salem/MA/Salem Harbor (2000, 2003, MIT Sea Grant 2003); Tucks Point Marina, Beverly/MA/Manchester Harbor (2000, MIT Sea Grant 2003); Cape Ann Marina, Gloucester/MA/Little River (2000, MIT Sea Grant 2003); Gloucester State Pier/MA/Gloucester Harbor (2000, MIT Sea Grant 2003)

Geographic Extent

MWRA Quincy (sewage plant)/MA/Massachusetts Bay (2000, MIT Sea Grant 2003); Bay Pointe Marina, Quincy/MA/Massachusetts Bay (2000, MIT Sea Grant 2003); Black Falcon Terminal, Boston/MA/Boston Harbor (2000, MIT Sea Grant 2003); Deer Island, Boston/MA/Boston Harbor (2000, MIT Sea Grant 2003); Rowes Wharf, Boston/MA/Boston Harbor (2000, MIT Sea Grant 2003; 2010, Massachusetts Office of Coastal Zone Management 2013); Constitution Marina/Boston/MA/Boston Harbor (2000, MIT Sea Grant 2003); Hawthorne Cove Marina, Salem/MA/Salem Harbor (2000, 2003, MIT Sea Grant 2003; 2010, Massachusetts Office of Coastal Zone Management 2013); Winter Island, Salem/MA/Massachusetts Bay (2010, Massachusetts Office of Coastal Zone Management 2013); Tucks Point Marina, Beverly/MA/Manchester Harbor (2000, MIT Sea Grant 2003); Beverly Port Marina/MA/Beverly Harbor (2012, Wagstaff 2012); Cape Ann Marina, Gloucester/MA/Little River (2000, MIT Sea Grant 2003); Gloucester State Pier/MA/Gloucester Harbor (2000, MIT Sea Grant 2003; 2010, Massachusetts Office of Coastal Zone Management 2013; 2012, Wagstaff 2017)

Vectors

Level Vector
Probable Hull Fouling

Regional Impacts

Ecological ImpactCompetition
Botrylloides violaceus is a strong competitor for space with other fouling organisms including the native mussel Mytilus edulis and the introduced tunicate Diplosoma listerianum in Boston Harbor (Agius 2007; Rajbanshi and Pederson 2007).
 

References

Full Reference List for Botrylloides violaceus

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