Species Regional Summary
Dreissena polymorpha
_CDA_L105 (Buffalo-Eighteenmile) ( L105 )

Invasion History Vectors Impacts References

Invasion

Invasion Description

1st Record: offshore between Longpoint and Port Colborne/Ontario/Lake Erie (4-11/1986, Carlton 2008)

Geographic Extent

offshore between Longpoint and Port Colborne/Ontario/Lake Erie (4-11/1986, Carlton 2008); Dunkirk/NY/Lake Erie (1989, USGS Nonindigenous Aquatic Species Program 2012)

Vectors

Level Vector
Probable Ballast Water

Regional Impacts

Economic ImpactIndustry
Fouling of natural gas wellheads by zebra mussels, off Ontario, caused maintenance problems by 1990 (Carlton 2008).
 
Ecological ImpactHerbivory
Reduction in chlorophyl a and increased light penetration, since the onset of the dreissenid invasions, was also seen in the eastern basin of Lake Erie (North et al. 2012).
 

References

Full Reference List for Dreissena polymorpha

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