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 ...

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 ...

SPICER — Since first being found in Green Lake in 2014, zebra mussels have spread throughout the lake and as is usually the case when invasive species first reach a water body, exploded in numbers.

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 study found even higher concentrations of the neurotoxin in perch taken from the12 study lakes impaired by zebra mussels, an invasive species. “It was quite a large difference,’’ said Fisheries, ...