#20 (March 7, 1994)

Editor's Note
Zebra Mussel Funds May Be Cut
Sightings
ZM Research Technical Notes
First NAFTA, Now NaZMA
Musseling the Ball
Recreation Unaffected
Freighter Detained
The Longest Journey
Mississippi Clamming Still Legal - For Now
Black Carp Controversy
Gopher Access
Clearinghouse Subscriptions Available
Upcoming Meetings

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.