Tuesday, November 17, 2009

Chicago River to be Poisoned : Asian Carp

Straight from the Chicago Tribune :

"Alarmed that Asian carp are swimming closer to Lake Michigan, state officials plan next month to poison a stretch of the Chicago Sanitary and Ship Canal."

"The Illinois Department of Natural Resources announced Friday that it will dump Rotenone, a potent fish-killing chemical, into the canal between Romeoville and the Lockport Dam in early December."

"Poisoning the canal has been considered a last-ditch solution to preventing Asian carp from spreading into the Great Lakes, where the fish are considered a serious threat to the region's $4.5 billion sport fishing industry. The main deterrent has been two electrified barriers in the canal near Romeoville, but one will be shut off for maintenance next month, and the other is considered too weak to stop younger fish from swimming through."

I would be interested in viewing the shocking they plan on doing to relocate native fish. It is always fascinating to see the diversity of fish in a system.
Here is some more about the electro shocking.

"Before Rotenone is applied to the canal, crews will use electrodes to shock fish to the surface and identify sport fish that can be safely relocated. After the dead carp are sent to a landfill, the crews will apply another substance that speeds up the breakdown of Rotenone, a chemical widely used across the country to kill invasive fish.

Rotenone is not considered a serious threat to people or wildlife. Water quality experts from the Illinois
Environmental Protection Agency will monitor water quality downstream to ensure the chemical doesn't drift beyond the targeted area. And the Sanitary and Ship Canal will be closed to boat traffic for up to five days."

We'll see if it works, and I'll keep you updated if I learn anything new.

-Great Lakes Angler

1 comment:

  1. Be sure to post if you find out any more info. I'd also love to see what's swimming in there.