I am not surprised, but no bighead or silver carp have been found so far in the second fish kill in the Great Asian Carp Quest.

Sorting of the killed fish produced mainly common carp and gizzard shad.
Here's Friday's update from the Asian Carp Regional Coordinating Committee:
First phase of Asian Carp Sampling Effort CompleteNo Bighead or Silver carp collected
Chicago, IL-
The Asian Carp Regional Coordinating Committee (RCC) today
completed the first phase of current sampling efforts on the Little Calumet
River in South Chicago. On Thursday the fish toxicant, Rotenone, was
successfully applied to a 2.5 mile section of the waterway and detoxification
and fish recovery operations began.
Fisheries biologists from the Illinois Department of Natural Resources
(IDNR), the U.S. Fish and Wildlife Service (USFWS) and other supporting
agencies have collected approximately 11,000 fish so far (mostly Common
carp and Gizzard shad) though no Bighead or Silver carp were found. More
fish will be recovered over the next several days as operations continue.
A five mile safety zone established by the U.S. Coast Guard remains in effect,
closing the river from mile marker 321.5 to 326.5 to all commercial and
recreational vessel traffic until the Coast Guard Captain of the Port rescinds
the safety zone following the completion of fish recovery operations
sometime in the next 3-5 days.
The public should NOT swim or recreate in the treatment area, or catch or
eat fish found in the treatment area until signs around the treatment area
have been removed.
Click here for updates from the Asian Carp Regional Coordinating Committee.
.

11,000 fish and mostly common carp. Guess that is good anyway, a carp is a carp and the water is better off without any of them.