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By Timothy Knepp [Public domain], via Wikimedia Commons

Researchers Use 'Stun Gun' on Fish

In an eerie development, hundreds of fish are floating motionlessly to the surface of the Tennessee Valley Authority lakes. But the bass aren’t dead; they snap out of their zombielike states after just a few minutes. Using a technique called “electrofishing,” researchers are going around temporarily stunning organisms with electricity to learn more about what’s in the water. The boat, which is equipped with an electric generator that can fire a 6-amp charge into the water through cables, creates a shock region that extends about 2 1/2 meters outward and downward. While the fish are stunned, the scientists easily scoop them up into a boat to measure, weigh, and check them for disease, The Washington Post reports.

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