Wednesday 5 June 2019

New plan would fight invasive Asian carp with air bubbles, electric shocks, noise


MAY 27, 2019
by Todd Spangler, Detroit Free Press
The head of the Army Corps of Engineers has signed off on a $778 million plan to stop the spread of Asian carp toward the Great Lakes with air bubbles, electric shocks and noise, sending it to Congress for approval.
The plan sent by Lt. Gen. Todd Semonite would block the invasive species' advance toward Lake Michigan at a key choke point at the Brandon Road Lock and Dam along the Des Plaines River in Illinois.
It would:
- Put in place additional electric barriers in the waterway to stop most Asian carp from moving through the lock and dam.
- Use special underwater speakers while ships were moving through the locks to blast sound waves at decibels and frequencies sufficient to make Asian carp species uncomfortable enough to turn back.

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