Lake trout are a predator fish at the top of the food web, so chemicals accumulate in their tissues. Photo:

Great Lakes lake trout predict global pollutants

When one thinks of iconic fish, Lake Ontario’s lake trout probably don’t come to mind.

But the white-bellied natives of these deep, cold transnational waters have a unique reputation – one considerably nobler than taking bait or adorning plates: They are a barometer for global pollutants.

The Eagle Project mine is just inland from Lake Superior in the central part of Michigan's Upper Peninsula. Photo: Michigan Department of Environmental Quality.

Michigan tribe battles global corporation

Ten years ago, when an international mining company arrived near the shores of Lake Superior to burrow a mile under the Earth and pull metals out of ore, the Keweenaw Bay Indian Community had to stand for its rights and its water.