zebra mussels

In one of the most polluted parts of Lake Michigan, whitefish are thriving. Some people wonder if we should try to replicate that environment elsewhere to save the iconic species. But that could mean doing something untested and controversial.

For the past three and a half decades, zebra and quagga mussels have fundamentally altered the ecology and hijacked the food web of the Great Lakes.Now scientists are trying new ways to put the mollusks in check, including infecting them with parasites and even crushing them with huge rollers. But will it be enough?

For the past three and a half decades, zebra and quagga mussels have fundamentally altered the ecology and hijacked the food web of the Great Lakes. Now scientists are trying new ways to put the mollusks in check, including infecting them with parasites and even crushing them with huge rollers. But will it be enough?

John Janssen remembers the moment he realized Lake Michigan was about to change.It was a September day in 1990 and he was diving looking for sculpin — an…

Here's a question for you lovers of the Great Lakes: Which lake is the clearest? You probably guessed Lake Superior. Well, that was true for a long time.…