Getting Rid of Invasive Species With a Little Electric Shock

The problem of invasive species is a slippery one for fisheries managers. One of the most notorious invaders, Asian carp, now dominates large portions of freshwater in the central U.S., and keeping them out of the Great Lakes could cost upward of $18 billion, according to a recent study by the U.S. Army Corps of Engineers.

There are a number of preventative measures in place to keep invasives from entering new waters. But at present there are few measures that fisheries managers can use t

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