Species Regional Summary
Sphaerium corneum
_CDA_L013 (St. Louis River) ( L013 )

Invasion

Invasion Description

1st Record: MN/Duluth Harbor (2001, Grigorevich et al. 2003)

Geographic Extent

MN/Duluth Harbor (2001, Grigorevich et al. 2003)

Vectors

Level	Vector
Alternate	Dry Ballast
Alternate	Ballast Water

Regional Impacts

References

Full Reference List for Sphaerium corneum