It could cost nearly $15 billion to prevent Asian carp and other invasive species from entering the Great Lakes and potentially devastating Michigan’s fishing and tourist ?industries, according to a report compiled by the U.S. Army Corps of Engineers.
The report details eight alternative options for controlling aquatic species flow between the Mississippi ?River and Great Lakes. Potential plans include electrical and physical barriers, ?locking mechanisms and targeted use of chemicals.
The corps project manager Dave Wethington said Congress is reviewing the plans and the possibility of funding the project. Wethington said species control is a shared responsibility and should involve federal, state and local levels of government.
Attorney General spokeswoman Joy Yearout said the report moves toward solving a problem that $7 billion fishing industry, but it’s more of a “laundry list of what we could do” than plan of action.
“The report is more ?evidence they’re moving at a snail’s pace,” Yearout said. “Asian carp eat plankton and other smaller food items that support commercial fishing. They’re ?predatory in cleaning them out.”
Asian carp, being filter feeders, could disrupt the food web by devouring algae and plankton in the Great Lakes, which are food sources for young ?native-species fish, Fisheries and Wildlife assistant ?professor Brian Roth said
Another issue posed by Asian carp is their size and ability to jump out of the water.
“Imagine a 20-pound fish jumping out and hitting you in the chest, and imagine you’re on a motorboat going 20 miles per hour,” Roth said. “That’ll hurt.”
Roth said the consequence of invading carp is tough to decipher, as it has yet to be seen and relies on many hypothetical “what if’s.”
“If they invade, and if they become abundant, and if they effectively filter feed, some ?other fish species could decline,” he said. “But we just don’t know.”
Editors’ note: This article was changed to remove inaccurate information about the failure rates of electrical barriers.
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