A study found that invasive zebra mussels significantly alter aquatic ecosystems, and are associated with elevated mercury concentrations in fish. Mercury, a potent neurotoxin, poses a serious threat ...

A new study finds walleye and yellow perch in lakes infested by zebra mussels are likely to have significantly higher mercury levels in their bodies than similar fish in lakes without the invasive ...

The Minnesota Department of Natural Resources has confirmed zebra mussels in Lake Bemidji in Beltrami County. In July, an adult zebra mussel was found in the stomach contents of a perch caught by a ...

The once green-hued waters of Cass Lake have become gin clear, a consequence of the dime-sized filter-feeders’ prodigious capacity to hoover up plankton and reproduce at astonishing rates. Credit: ...

Walleyes and perch taken from Minnesota lakes infested with zebra mussels contain starkly higher levels of mercury than those taken from uninvaded lakes, according to new University of Minnesota ...

At some point in the past decade, the yellow perch, a freshwater fish found across Canada, changed its diet. The good news is that the perch started eating invasive quagga mussels, a close cousin of ...

A new study has found another negative effect of invasive zebra mussels in lakes: higher levels of mercury in fish. Researchers from the University of Minnesota, the U.S. Geological Survey and other ...