The National Academies:

The St. Lawrence Seaway, a series of canals and channels managed by both the U.S. and Canada that give large ships traveling from the Atlantic Ocean access to the Great Lakes, has been an entry point for invasive species since it was first opened in 1959. A new report from the National Research Council, ST. LAWRENCE SEAWAY: ISSUES AND OPTIONS, reviews ways to prevent ships from transporting invasive species into the Great Lakes, and makes recommendations on what the U.S. and Canada should do to deter future introductions of potentially harmful species.

Reporters may obtain copies by contacting the National Academies’ Office of News and Public Information, tel. 202-334-2138 or e-mail news@nas.edu. Advance copies will be available to reporters only starting at 11 A.M. EDT on Wednesday, July 16. THE REPORT IS EMBARGOED AND NOT FOR PUBLIC RELEASE BEFORE 4 P.M. EDT ON WEDNESDAY, JULY 16.