Experts on aquative invasive species along with environmental engineers and fishing and river-carrier interests will convene on May 14 and 15 in Chicago for a meeting to discuss practical ways to prevent invasive species from moving between the Great Lakes and Mississippi River basins. More than 60 people from the United States, Canada, Australia and the United Kingdom will participate in the summit. The summit will begin with presentations on invasive-species transfer, wastewater management, flood control, and navigation and shipping. Participants will devise a work plan for preventing further environmental degradation and impacts on marine-related industries in the two basins. Mayor Daley and Chicago’s Department of Environment, along with William F.