They started with fresh-water electro fishing technology and adapted it for salt water. The robot stuns, but doesn't kill the lionfish and then it sucks them into the robot. It does this over and over again, until full of unconscious fish and then rises to the surface where a fisherman can unload the catch and deliver them to waiting restaurants and food stores. "Ultimately, the control of this device is like a PlayStation game: you're looking at screen and using a joystick controller. Zap it, catch it, do it again, said RISE Executive Director John Rizzi who told me that a team of unpaid volunteers have been working on the prototype for over a year."
The fish-killing robot will launch in Bermuda at the America's Cup festivities on April 19th, where there'll also be a celebrity chef lionfish cook-off and other events to help raise money "to further developer, build and deliver these robots to commercial fishermen and women."