<P> In May 2013, a test for silver carp eDNA in the waters of Sturgeon Bay in Lake Michigan near Green Bay, Wis. was positive . May is a month when the carp are active . The result was published in October and scientists will re-test in May, 2014 . </P> <P> In 2014, regional authorities continued their calls for action, and redoubled their efforts to prevent carp invasion . </P> <P> In July 2015, two grass carp were found within days of each other in contained ponds near Toronto's Lake Ontario waterfront . This could mean a variety of things, but has yet to prove that widespread reproduction is taking place in Lake Ontario, although both fish were male and fertile . The United States and Canadian authorities have been working together to determine where the fish originated and how to stop a potential invasion into the Great Lakes, however in early September three more grass carp were found near the Toronto Islands . </P> <P> A study, released in 2015, detailed the devastating potential of a possible carp invasion on Lake Erie . </P>

How did the asian carp get to america and why are they a problem