Alliance for the Great Lakes The intervening years saw some contraction, until the appointment of Glenda Daniel as executive director in 1986. During her tenure, the Lake Michigan Federation opened offices in Muskegon, Milwaukee and Green Bay, with its original headquarters remaining in Chicago. With the U.S. and Canada signing a major amendment to the U.S.-Canada Great Lakes Water Quality Agreement in 1987, which among other things allowed for the designation of toxic hotspot "Areas of Concern," the Federation made a significant push to empower local communities in these "AOCs" to seek support for the implementation of cleanups. After Daniel's resignation in 1992, again, the
Great Lakes during the 1970s and 1980s, combined with successful salmonid stocking programs, have enabled the growth of a large recreational fishery. The last commercial fisherman left Milwaukee in 2011 because of overfishing and anthropogenic changes to the biosphere. Since the 19th century an estimated 160 new species have found their way into the Great Lakes ecosystem; many have become invasive; the overseas ship ballast and ship hull parasitism are causing severe economic and ecological impacts. According to the Inland Seas Education Association, on average a new species enters the Great Lakes every eight months. Introductions into the Great Lakes include the