Invasion
Invasion Description
1st Record: Thunder Bay/Ontario/Lake Superior (2001, USGS Nonindigenous Aquatic Species Program 2007)
Geographic Extent
near Duluth/MN/St. Louis River estuary, Lake Superior (2005, USGS Nonindigenous Aquatic Species Program 2007; Trebitz et al. 2012); Thunder Bay/Ontario/Lake Superior (2001, USGS Nonindigenous Aquatic Species Program 2007); off Waukegan/IL/Lake Michigan (2006, USGS Nonindigenous Aquatic Species Program 2008)
Vectors
| Level | Vector |
|---|---|
| Alternate | Fisheries Accidental (not Oyster) |
| Alternate | Aquatic Plant Shipments |
| Alternate | Ballast Water |
| Alternate | Hull Fouling |