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.
Source: The National Academies