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Illinois Department of Natural Resources biologist Justin Widloe holds a bighead carp. (Chad Merda / Forest Preserve District of Will County)

If Asian carp invade the Great Lakes, experts say the fish would have a devastating effect on the marine food chain and the region’s $7 billion fishing industry. We get a look at efforts to keep them out of Illinois waterways.

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In this June 13, 2012, file photo, Asian carp, jolted by an electric current from a research boat, jump from the Illinois River near Havana, Ill. (AP Photo / John Flesher, File)

“Our study indicates that the carp can survive and grow in much larger areas of the lake than previous studies suggested,” said Peter Alsip, lead author of the paper.

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Illinois Gov. J.B. Pritzker (WTTW News file photo)

Gov. J.B. Pritzker and four of his counterparts in the region are urging candidates in the 2020 presidential election to back a new plan aimed at protecting the Great Lakes.

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(U.S. Fish and Wildlife Service)

Tens of billions of gallons of untreated sewage and stormwater runoff end up in the Great Lakes each year, polluting the water and prompting beach closings and swimming advisories. How new legislation aims to help.

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In this June 13, 2012, file photo, Asian carp, jolted by an electric current from a research boat, jump from the Illinois River near Havana, Ill. (AP Photo / John Flesher, File)

Regional leaders are scheduled to meet in Chicago next month to discuss a plan devised by the U.S. Army Corps of Engineers for preventing invasive Asian carp from reaching Lake Michigan. 

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In this June 13, 2012, file photo, Asian carp, jolted by an electric current from a research boat, jump from the Illinois River near Havana, Ill. (AP Photo / John Flesher, File)

The head of the Army Corps of Engineers has sent Congress a $778 million plan to fortify an Illinois waterway with noisemakers, electric cables and other devices in the hope that they will prevent Asian carp from reaching the Great Lakes.

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A view of the Great Lakes from space. (U.S. Environmental Protection Agency / Flickr)

A first-of-its-kind report shows how climate change is threatening the Great Lakes, and how their ongoing transformation figures to impact the entire region.

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A silver carp captured in June 2017 in the Illinois Waterway below the T.J. O’Brien Lock and Dam, about 9 miles from Lake Michigan. (Courtesy Illinois Department of Natural Resources)

If you can’t beat ‘em, eat ‘em. That’s the apparent strategy behind a new state grant program that will provide funding to companies that harvest and sell Asian carp.

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(Frank McNamara / Flickr)

The Trump administration’s plan to roll back limits on toxic mercury pollution will harm Great Lakes fish – and potentially those who eat them, advocates say.

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This July 19, 2002, file photo, shows the Mackinac Bridge that spans the Straits of Mackinac from Mackinaw City, Michigan. (Carlos Osorio / AP File Photo)

A proposal to run an oil pipeline beneath a crucial section of the Great Lakes cleared its final hurdle Wednesday, gaining approval of a Michigan panel created a week earlier. 

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Gov. Bruce Rauner (Chicago Tonight file photo)

Michigan offered to give Illinois $8 million to keep Asian carp out of the Great Lakes. But Illinois Gov. Bruce Rauner has a different idea about how to spend the money. 

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This July 19, 2002, file photo, shows the Mackinac Bridge that spans the Straits of Mackinac from Mackinaw City, Michigan. (Carlos Osorio / AP File Photo)

Michigan Gov. Rick Snyder's administration said Thursday it had wrapped up negotiations with Enbridge Inc. on building a tunnel to contain an oil pipeline beneath a Great Lakes waterway.

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A silver carp captured in June 2017 in the Illinois Waterway below the T.J. O’Brien Lock and Dam, about 9 miles from Lake Michigan. (Courtesy Illinois Department of Natural Resources)

Additional engineering and design work has more than doubled the cost of a long-awaited plan to prevent invasive Asian carp from reaching the Great Lakes, according to federal officials.

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(Frank McNamara / Flickr)

Researchers from Cornell University and the EPA are raising concerns about the potential impact of recently discovered non-invasive species on the overall health of the Great Lakes.

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(Frank McNamara / Flickr)

When it comes to the health and maintenance of Lake Michigan, some environmentalists, property owners and even surfers have expressed their concerns. What the future may hold.

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(Karen Murchie / ©Shedd Aquarium)

Why more than two dozen volunteers have been tracking migrations of white and longnose suckers, an often overlooked family of fish.