#30 (May, 1997)

St. Croix Stays Clean. . .
Washing Boats in Washington
Native Clams Survive in Isolated Pockets
Down on the Bayou
VW Bugged by Mussels
More Sub Zebras?
Buckeyes Watch for Zebra Mussels
Upwelling Reduces Chlorine Effectiveness
Zebra Mussels Get Busted
Pigging Out on Mussels
The Battle of Tippecanoe
Double Duty
Illinois Sitings: Fox River
Cliff's Notes

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.