Great Lakes National Program Office- Image Collection

	Zebra mussels washed up on beach, Lake Erie Bay City Times (courtesy Great Lakes Environmental Research Lab) High Resolution
	Zebra mussel, Detroit River Center for Great Lakes and Aquatic Sciences High Resolution
	Zebra mussel, Detroit River Center for Great Lakes and Aquatic Sciences High Resolution
	Sea lamprey, Unknown location Great Lakes Sea Grant Network Exotic Species Graphics Library High Resolution
	Lake trout with scar from sea lamprey, Unknown location Center for Great Lakes and Aquatic Sciences High Resolution
	Sea lamprey on lake trout, Unknown location US Fish and Wildlife Service High Resolution
	Eurasian ruffe, Unknown location Gary Cholwek, National Biological Service High Resolution
	White perch, Lake Erie Minnesota Sea Grant, Jeff Gunderson High Resolution
	Alewife, Unknown location Center for Great Lakes and Aquatic Sciences, David Jude High Resolution
	Spiny water flea, Unknown location US Fish and Wildlife Service High Resolution
	Spiny water flea clogging gill net, Lake Superior, Minnesota Steve Geving, Minnesota Department of Natural Resources High Resolution
	Three-spine stickleback, Taconite Harbor, Minnesota Minnesota Sea Grant, Jeff Gunderson High Resolution
	Tubenose goby, Unknown location Center for Great Lakes and Aquatic Sciences High Resolution
	Round goby, Unknown location Center for Great Lakes and Aquatic Sciences High Resolution
	Rusty crayfish, Lake Superior Minnesota Sea Grant, Jeff Gunderson High Resolution
	Purple loosestrife, Saginaw Bay, Lake Huron US Environmental Protection Agency, Karen Holland High Resolution