All posts by smlaske

Can silver carp fly over an electric barrier?

Illinois’ efforts to thwart the Great Lakes invasion of Asian carp depend on the success and reliability of one (and a half – for the backup barrier) electric barrier 35 miles downstream of Lake Michigan. Whether or not this barrier actually works — keeps fish out of Lake Michigan — is up for debate. In 2009, researchers at the University of Notre Dame employed a new technique in which water samples were analyzed for carp DNA. With a positive test result for carp DNA, came a poisoning of the waterway, contested lawsuits, and heated relationships between scientists and those managing the canal. Poisoning over the years has revealed 2 carp above the barrier (big head, not silver_see: https://www.youtube.com/watch?v=DLFe8xfgx24), suggesting a leaky barrier, or some Ming Dynasty type fish relocation. As far as lawsuits, they are still arguing, and justices don’t want to go there with a ten-foot fishing pole. Relationships will continue to be heated between those managing the Great Lakes resources and those in charge of infrastructure. And, with over $100 million dollars already invested there is a long, spendy road ahead. There is no easy solution to this problem; so while economics battles natural resources, the rest of us will have to just wait and see…
https://www.jsonline.com/news/wisconsin/fish-barrier-vs-carp-dna-what-to-believe-4q5ru75-167454795.html