Invasion
Invasion Description
1st Record: on 9th Ave. Bridge in Alpena/MI/Thunder Bay River, Lake Huron (1990, USGS Nonindigenous Aquatic Species Program 2012)
Geographic Extent
on 9th Ave. Bridge in Alpena/MI/Thunder Bay River, Lake Huron (1990, USGS Nonindigenous Aquatic Species Program 2012)
Vectors
| Level | Vector |
|---|---|
| Alternate | Hull Fouling |
| Alternate | Ballast Water |