Study: Asian carp DNA may not signal live fish

February 20, 2013 by John Flesher

(AP)—A new government study says live Asian carp don't have to be present for their DNA to turn up in the environment.

The report released Wednesday by three federal agencies identifies six other ways that genetic material from bighead and silver carp might have reached waterways in the Chicago area and western Lake Erie.

It says the DNA may have come from , fisheries sampling gear, fish-eating birds, dead fish carcasses, barges and sediments. The report says carp DNA from those sources could remain in place for several days.

DNA has been found in dozens of water samples beyond an electric barrier meant to prevent the invasive fish from reaching the Great Lakes, where scientists say they could destabilize ecosystems and out-compete for food.

Explore further: Illinois to poison canal in hopes of killing invasive carp

0 shares

Related Stories

Illinois to poison canal in hopes of killing invasive carp

December 2, 2009

The largest fish kill in Illinois history -- expected to net 100 tons of fish including, hopefully, some Asian carp -- is to start Wednesday south of Chicago in an attempt to make sure none of the feared carp make it past ...

No Asian carp found yet in Ill. fish kill

December 3, 2009

(AP) -- No Asian carp have been spotted so far in a Chicago canal during a massive fish kill aimed at trying to keep the giant fish out of the Great Lakes.

Wildlife officials search for carp in Chicago area

February 17, 2010

(AP) -- Armed with sprawling fishing nets and boats equipped with electric prods, state and federal fisheries biologists began a "search-and-destroy" mission in Chicago-area waterways Wednesday aimed at rooting out the dreaded ...

Recommended for you

Head and body lice read DNA differently

July 28, 2015

What makes head lice different from body lice had scientists scratching their heads as previous genetic studies failed to find any substantial differences between the two types of lice.

0 comments

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.