Color photo of mysis relicta.

Color photo of the water flea bythotrephes cederestroemi.

Purple loosestrife. Invasive plant.

Native Great Lakes unionid mussel encrusted with zebra mussels. GLERL, 1996.

Color photo of macrophytes (aquatic plants) in Lake St. Clair, thought to be caused by zebra mussels increasing water clarity. GLERL, 1995.

Color photo of macrophytes (aquatic plants) in Lake St. Clair, thought to be caused by zebra mussels increasing water clarity. GLERL, 1995.

Zebra mussel cluster. Photo taken by D. Jude, Univ. of Michigan.

Chironomids taken from Muskegon Lake 10/29/99. Photo taken by Glenn Carter with Spot Camera on 5/18/00.

Amphipod Diporeia. Actual size 7.8 mm. Microphotograph taken by M. Quigley April 2000.

Gastropoda. Microphotograph taken by G. Carter, April 2000.

Gammarus from Saginaw Bay, Lake Huron. Microphotograph taken by G. Carter, April 2000.

Hyalella from Saginaw Bay. Microphotograph taken by Glenn Carter, April 2000.

Zebra mussels (Dreissena polymorpha) attached to native clam (unionid) Lampsilis.

Microphotograph of typical benthic animals. Microphotograph taken by G. Carter, April 2000.

Healthy calanoid copepod (Diaptomus spp.). Summer 2000.