CHICAGO (WTAQ) - Another invasive fish could soon start to make inroads on Wisconsin's eastern and western borders.
Scientist Lindsay Chadderton of the Nature Conservancy said Tuesday that DNA evidence from the Eurasian Ruffe was spotted for the first time in southern Lake Michigan.
It raises new concerns that the fish could migrate into the Mississippi River watershed, joining the invasive Asian carp in taking away the food that native fish eat.
Chadderton said researchers tested the Great Lakes in July, and DNA from the Eurasian Ruffe was found in two samples taken at Chicago's Calumet Harbor. No ruffe were actually found, but Chadderton suggests that state and federal agencies take the DNA presence seriously and increase monitoring.
The Army Corps of Engineers says the Eurasian Ruffe is one of 29 species most likely to eventually migrate between the Great Lakes and the Mississippi.
Wisconsin is among the states that have tried, and failed, to close a water link in Illinois between the two systems.
(Story courtesy of Wheeler News Service)