Color photo of zooplankton Mysis relicta.

Green algae, scenedesmus. Microphotograph by G. Fahnenstiel.

Color microphotograph of protozoa. GLERL, G. Fahnenstiel.

Color photograph of the worm lumbriculidae and the amphipod Diporeia swimming at the sediment surface.

Color photo of purple loosestrife.

Color microphotograph of the water flea Bythotrephes cederestroemii.

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

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

Black and white drawing of zebra mussel showing byssal threads.

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

Retrieval of zebra mussel-encrusted Vector Averaging Current Meter near Michigan City, IN. Lake Michigan, June 1999. Photo by M. McCormick.

Retrieval of zebra mussel-encrusted Vector Averaging Current Meter near Michigan City, IN. Lake Michigan, June 1999.

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.