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You can't control what you can't find: Detecting invasive species while they're still scarce

  • Written by Jake Walsh, Postdoctoral Research Associate, University of Wisconsin-Madison
There are 130 billion gallons of water in Wisconsin's Lake Mendota, and now, trillions of spiny water fleas.Corey Coyle/Wikimedia, CC BY

Most of the 10,000 ships lost to the bottom of the Great Lakes in wrecks over the past 400 years are still lost – hidden somewhere in 6 quadrillion gallons of water. Finding anything in a lake is a lesson in...

Read more: You can't control what you can't find: Detecting invasive species while they're still scarce

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