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Friday
Jun222012

Evidence Grows That Electric Barrier Hasn't Kept Carp Out of Great Lakes

As the U.S. Army Corps of Engineers continues to study the best ways to keep Asian carp out of the Great Lakes, those rascally silver and bighead carp aren’t waiting to see what the agency comes up with to replace and/or complement what seems to be an ineffective electric barrier.

Here’s the latest from the Milwaukee Journal-Sentinel:

 “While it's been nearly two years since crews landed the only live Asian carp specimen above an electric barrier on the Chicago Sanitary and Ship Canal, DNA evidence of the jumbo carp continues to come in --- and the percentage of DNA-positive water samples taken above the barrier this year appears to have grown tenfold over last year.

“The Army Corps of Engineers reported that of the 2,378 water samples taken throughout 2011 in the canal system above the electric barrier, a total of 34 samples were positive. This year, after just one day of sampling the waters above the barrier, the Army Corps reports it landed 17 positive results from 114 water samples.

“In other words, the percentage of samples that tested positive for Asian carp DNA last year was about 1.5%. This year, so far, it has jumped to almost 15%.”

Read the full story here.

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