It is most certainly NOT a Mississippi River Pool.
The plans are to apply rotenone in a segment of the cal-Sag sanitary/ship canal. Here’s a piece of the relevant story:
Federal and state officials are preparing an unprecedented fish kill this week along 5.7 miles of the Sanitary and Ship Canal near Romeoville.
The dumping of the toxin Rotenone, a potent fish killer, is intended to forestall the advance of Asian carp as the U.S. Corps of Engineers temporarily shuts down an electric barrier in the canal for maintenance.
The barrier has long been regarded as “the last line of defense” between the fast-spawning carp and the Great Lakes. But even that has been called into question with the recent discovery of carp DNA above the barrier, adding a particularly adversarial cast to Wednesday’s showdown between man and invasive fish.
Known for their voracious appetite and prolific breeding, Asian carp have eaten their way up the Mississippi and Illinois rivers over 15 years. In the summer, researchers discovered the fish were 10 miles closer to Lake Michigan than previously thought, prompting an emergency plan to clean out the canal, which links the two vast water systems.
Poisoning the canal has been considered a last-ditch solution to preventing spead of the carp into the Great Lakes, where the fish are seen as a threat to the region’s $4.5 billion sport fishing industry.