* Last week…
Federal and state agencies announced [last] Friday that invasive Asian Carp DNA has been found in Bubbly Creek in Chicago, which is about 5 miles from Lake Michigan. This spike in eDNA so close to Lake Michigan is a cause for alarm. Agencies have commenced increased sampling and monitoring in the area.
In reaction to this alarming news, Alliance for the Great Lakes President & CEO Joel Brammeier released the following statement:
“This discovery is yet another sign that we are teetering on the edge of a nightmare scenario. The time for delay is over…”
Officials are eyeballing the metropolitan sewer system as a possible source for invasive carp genetic material found in the Chicago River last month in amounts that puzzled wildlife experts and triggered emergency searching for live fish.
So far, netting and electrofishing have found no traces of silver or bighead carp after agencies announced Nov. 1 that routine testing around the Chicago Area Waterway System turned up 76 positive carp genetic material detections in Chicago’s Bubbly Creek. […]
There’s a suspicion the DNA hits could be related to either human waste or wash water from fish markets entering the sewer system, she said. City fish mongers sell silver and bighead carp and the state of Illinois is promoting commercial catch as a means of species control.
[Amy McGovern, aquatic invasive species supervisor with the U.S. Fish & Wildlife service] said the Racine Avenue station is “pumping a significant amount of material into the water near a community that eats a lot of dead Asian carp.”
The wildlife service wants to begin sampling inside the sewer system. […]
The Racine Avenue pumping station on Bubbly Creek transfers wastewater to the Stickney treatment plant from Chinatown and much of the city south of the river down to 87th Street. According to MWRD, the station discharged to the creek twice just prior to the eDNA sampling; 731 million gallons on Oct. 3 and 185 million gallons on Oct. 5.