#12 (February 19, 1992)

Editor's Note
New Sighting in Wisconsin
New Sightings Elsewhere in the Great Lakes Basin
New Sightings Elsewhere in the U.S.
Wisconsin Permits Capped-Pipe Chemical Treatment
No Mussels Found in Either Ohio
Mussels Pose Math Problem
Sand Filters Option Reviewed
Upcoming Workshop
Great Lakes Carriers Report Few Problems
Conference Abstracts Available
What's a Quagga Mussel?
The Seagrass Isn't Always Greener...
Ducks Die Diving for Mussels
Office Buried by Barry Column on Size Z Bra Mussels

The Zebra Mussel Update was a 4- to 8-page quarterly national newsletter published by the University of Wisconsin Sea Grant Institute from May 1990 through May 1997. The ZMU documented the spread of the zebra mussel -- an exotic nuisance mussel -- through North America's freshwater environments, especially the Great Lakes, and on efforts to control it.