Silver carp that were brought to the US in the 1970s for aquaculture and water-treatment facilities have spread across the Mississippi River basin and are now raising concerns about the Great Lakes.
Add Yahoo as a preferred source to see more of our stories on Google. Invasive carp present a huge threat to the Great Lakes ecosystem and tourism economy, which remains for now distant from Ashtabula ...
Crews are stunning and netting invasive silver carp on the Platte River, where the jumping fish are threatening native species.
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