This undated photo provided by the U.S. Geological Survey shows a Eurasian ruffe, which is an invasive fish whose DNA has been detected in Chicago-area waterways. (AP Photo/U.S. Geological Survey, ...

Conservationists and wildlife officials have been policing the porous border between the Mississippi watershed and the Great Lakes for years. Their main concern: preventing Asian carp, an invasive ...

There's been a new detection of an invasive species of fish in St. Marys River in northeastern Ontario. Sydney Currier is with the Invasive Species Centre in Sault Ste. Marie and says the Eurasian ...

Invasive species of fish spotted in Sault area An invasive species of fish called the Eurasian ruffe has been spotted in St. Marys River near Sault Ste. Marie.

Create an account or log in to save stories. TRAVERSE CITY, Mich. (AP) -- Genetic material from an invasive fish called the Eurasian ruffe has been found in southern Lake Michigan for the first time, ...