A chutelike steeppass fish-sorting system is being tested at Emiquon preserve near Lewistown, May 17, 2021, as officials work to keep invasive carp out of the Great Lakes.
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A chutelike steeppass fish-sorting system is being tested at Emiquon preserve near Lewistown, May 17, 2021, as officials work to keep invasive carp out of the Great Lakes.