Great Lakes

The Great Lakes are the largest freshwater system on the Earth's surface, home to a fragile fishery, and delicate shoreline beaches and dunes. They are also central to northern Michigan tourism, economies and our way of life. 

Reviving Michigan's coastal marshes

Sep 22, 2016

 

Most visitors to northern Michigan are looking for sugar sand beaches on the Great Lakes. But if you’re a spawning fish or a migratory bird, you might be looking for a coastal marsh.

The Great Lakes used to be lined with coastal marshes that were full of native plants and wildlife. But in lower Michigan, many of these places been drained, plowed, polluted and, more recently, overrun by exotic plants from other parts of the world.

 

Some conservation groups are working to restore and protect the marshes we have left.

Scientists launched a kind of underwater robotic tool in Lake Erie this week to test the water for toxins.

Timothy Davis is a researcher with NOAA's Great Lakes Environmental Research Laboratory.

“We affectionately call it a lab in a can,” he says.

He says this tool takes water samples to test the levels of a toxin in the green blooms of cyanobacteria that've been showing up in the lake each year.

Fertile grass carp found in Canadian waters of Lake Erie

Sep 14, 2016

The Canadian government has confirmed that, for the first time, a fertile grass carp has been caught in the Canadian waters of western Lake Erie.

Grass carp are considered less of a threat than bighead and silver carp (but grass carp can eat a lot of aquatic plants) and for a long time, people thought the grass carp in the lakes were sterile. But lately, fertile grass carp have been turning up.

A commercial fisherman caught the fish off Point Pelee.

 

Enbridge Energy’s Line 5 goes right under Lake Michigan. It splits into two pipelines at the Straits, and it was recently announced that the supports that hold the pipeline in place are not in compliance with a 1953 easement agreement with the state.

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