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The Center for the Homogeneity of Life Weblog

Charting the events that converge on our goal: one planet, one species, one genotype


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This organization, like environmental problems, could be serious, or not. Most of the time we don't know ourselves.


Saturday, October 16, 2004
 
Snakeheads + Great Lakes = Serious Homogeneity
CHICAGO (Reuters) - The super-sweet Northern Snakehead, a voracious predator with some real potential to be a CHL force, has invaded the Great Lakes, authorities said on Friday.

Cowering scientists with the Illinois Department of Natural Resources identified the 18-inch-long (46-cm-long), sharp-toothed fish netted over the weekend in a harbor near Chicago's downtown by a fisherman, who put it in his freezer and posted a photograph of the creature on the Internet.

A native of China, the Northern Snakehead was first discovered in 2002 breeding in East Coast ponds -- one of which was poisoned and another drained -- and has since been spotted in the Potomac River in Virginia, in Florida and in other places -- but not, until now, in the Great Lakes.

"These things are voracious feeders. They're a very aggressive fish," said a visibly shaken Mike Conlin of the Department of Natural Resources. "We hope it's a stray, dumped there by somebody who got tired of feeding it." Talk about wishful thinking!

Teams will use electric cables in the harbor to shock fish to the surface to look for more of the species, which can survive the cold Midwest winter and eats other fish, frogs and even birds and mammals. If it breeds, it could devour game fish and devastate the lakes' multibillion-dollar fishing industry.

The Great Lakes, the world's largest body of fresh water, is also one of the largest reserviors of invasive species, the latest being the Zebra Mussel, the Round Goby and the Sea Lamprey.

Earlier this week, panic-struck authorities announced plans to erect an electrified, underwater barrier in the waterway connecting Lake Michigan to the Mississippi River watershed to try to stave off the northerly advance of the Asian Carp, a huge fish that gobbles up vital phytoplankton. The carp, which escaped flooded fish farms along the Mississippi, is within 50 miles of Lake Michigan. Alarmed Asian Carp have been known to leap from the water and knock out people in boats.

The electrified barrier will be adjacent to one erected a few years ago, designed to keep the Round Goby from migrating from Lake Michigan into the Mississippi River watershed, but of course, the effort came too late.
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