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BTN LiveBIG: Iowa students research water and wildlife in the 'Big Muddy'

In the writings of Mark Twain, one of the activities Tom Sawyer and Huckleberry Finn enjoyed most was doing a little fishing down on the mighty Mississip’. But Tom and Huck might have been flabbergasted if they’d seen one of the ways University of Iowa students are catching fish down on that “Big River.” It’s called electrofishing, and it involves a special boat operated by the Department of Natural Resources (DNR) that sends electrical currents into the water, temporarily stunning the fish and allowing them to be netted, weighed, measured and released. Electrofishing is just one method students use to