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 ...

I read Adam Jensen’s article on zebra mussels (Jan. 22) with alarm and concern. I am not a scientist or an alarmist, but I do recognize a potential ecosystem catastrophe when I see one. About eight ...

Discoveries of the invasive and damaging zebra mussels have been piling up in Western Colorado, with recent detections in Eagle County, the Colorado River, and other waterways. Zebra mussels — and ...

New rounds of samples for the voracious creatures keep turning up positive, complicating containment The Colorado River is now officially “positive” for invasive zebra mussels for longer stretches in ...

Anglers catching fish in zebra mussel-infested lakes may be reeling in adult walleyes with mercury content 72% higher and perch with 157% higher levels than those being caught on non-infested lakes.

For years, Lake Vermilion and Lake Kabetogama seemed special. As Minnesota’s other large and heavily fished lakes fell one-by-one to zebra mussel infestations, the two sprawling wooded giants in ...

Now, the mussels threaten to reach the country’s last major uninfested freshwater zones to the west and north: the Columbia River Basin in Washington and Oregon, and the waterways of Alaska. In my ...

When it comes to zebra mussels in the Colorado River system, Colorado Parks and Wildlife Director Jeff Davis summed it up this way: “We look, we find.” While Colorado’s first detection of the highly ...