Fish guts show changes on the Lake Huron menu

Alewives were once an important food source for top predators and popular gamefish such as salmon and lake trout. But Great Lakes populations of the small fish started to decline in the early 1980s.

Invasive mussels challenge commercial whitefish fishing in the Great Lakes

The spread of invasive quagga and zebra mussels in the Great Lakes has altered the ecology of lakes, including disrupting the food web in the lakes. Commercial whitefish fishers are facing challenges in their industry that may be the result of changes to the food web brought about by the presence of the invasive mussels.