Figure 1. Zebra mussel (courtesy of Great Lakes Sea Grant)
Figure 2. Zebra mussel infestation (photographed by Peter Yates)
Figure 3. Location of zebra mussels in the United States and Canada (December 1995)
Figure 4. Time required for 100-percent zebra mussels mortality with respect to acclimation temperature (adapted from McMahon et al. 1995)
Figure 5. Removal of zebra mussel shell debris by vacuum hose (photographed by Peter Yates)
Figure 6. Water jetting being used to clean pump room (photographed by Peter Yates)
Figure 7. Freezing air exposure time required for 100-percent zebra mussel mortality (Payne 1992a)
Figure 8. Closer view of the zebra mussel infestation that caused shut down of the Detroit Edison power plant for cleaning (photographed by Peter Yates)
Figure 9. Trash rack covered with zebra mussels
Figure 10. Screen clogged with zebra mussels
Figure 11. A tow entering the high-lift John Day Lock on the Columbia River from upstream
Figure 12. Bay Springs Locks, Tennessee - Tombigbee Waterway, illustrates a high-lift lock that bypasses the river regulation and flood central facilities
Figure 13. Bellville Lock and Dam on the Ohio River illustrates a typical medium-lift navigation project
Figure 14. Vermilion Lock on the Gulf Intracoastal Waterway, Louisiana, is a low-lift navigation project
Figure 15. Floating plant hull infested with zebra mussels (courtesy of Great Lakes Sea Grant)