Invasion
Invasion Description
1st Record: Straits of Mackinac/MI/Lake Michigan (found at 6 of 37 sites sampled) (1997, Nalepa et al. 2001)
Geographic Extent
Straits of Mackinac/MI/Lake Michigan (found at 6 of 37 sites sampled) (1997, Nalepa et al. 2001); ~4 mi W of St. Ignace/MI/Lake Michigan (1997, USGS Nonindigenous Aquatic Species Program 2008); near Charles/MI/St. Martin Bay, Lake Huron (1997, USGS Nonindigenous Aquatic Species Program 2008); Gull Island Reef/MI/Lake Michigan (2000, USGS Nonindigenous Aquatic Species Program 2008); off Port Dolomite/MI/Lake Huron (2011, USGS Nonindigenous Aquatic Species Program 2012)
Vectors
Level | Vector |
---|---|
Alternate | Ballast Water |
Alternate | Hull Fouling |