In addition to the sea lamprey, I would add the work we've done on ballast water, the research we've done. One of our research scientists actually worked with the Canadian Aquatic Invasive Species Network in Windsor and with Transport Canada, and that has led to major changes in regulations both in Canada and the U.S., and now potentially globally. To our knowledge, there's been no introduction of an invasive species from ballast water since 2008.
On April 2nd, 2012. See this statement in context.