Jellyfish* are serious business. If you get enough of them in one place, bad things happen. And we're not just talking about some mildly annoying stings, but all-out nuclear war. Obviously, we have to fight back. With ROBOTS.
In South Korea, jellyfish are threatening marine ecosystems and are responsible for about US $300 million in damage and losses to fisheries, seaside power plants, and other ocean infrastructure. The problem is that you don't just get a few jellyfish. I mean, a few jellyfish would be kind of cute. The problem is that you get thousands of them. Or hundreds of thousands. Or millions, all at once, literally jellying up the works.
Large jellyfish swarms have been drastically increasing over the past decades and have become a problem in many parts of the world, Hyun Myung, a robotics professor at the Korean Advanced Institute of Science and Technology (KAIST), tells IEEE Spectrum. And they aren't affecting just marine life and infrastructure. "The number of beachgoers who have been stung by poisonous jellyfish, which can lead to death in extreme cases, has risen," he says. "One child died due to this last year in Korea."
So Professor Myung and his group at KAIST set out to develop a robot to deal with this issue, and last month, they tested out their solution, the Jellyfish Elimination Robotic Swarm (JEROS), in Masan Bay on the southern coast of South Korea. They've built three prototypes like the one shown below.
Blue » Fri May 22, 2015 12:18 am wrote:enenews link
KUOW (NPR station in Seattle) transcript, May 12, 2015 (emphasis added): Jellyfish Boom As Little Fish Disappeared… A bill signed by Governor Jay Inslee authorizes a major study of fish in Puget Sound… A new study suggests that the little guys are disappearing… [NOAA biologist] Correigh Greene is standing near the end of a fishing dock in West Seattle. He’s not here to fish, but he tells me what he’d expect to catch if he threw a net in the water here: Some young salmon pumped out by hatcheries — (Green): “and that’s mostly it, aside from a bunch of jellyfish”… In much of Puget Sound… researchers rarely pull up the little fish that salmon, and even orcas, depend on. Mostly they get big hauls of jellyfish. Greene recalls one of the biggest — (Green): “The net was so filled with jellyfish we couldn’t bring it on board. It was too heavy for our winch. It’s fairly disturbing when all you pull up are these huge masses of jellyfish.”… Jellies seem to be replacing the tastier parts of the food chain, like herring… federal biologists can’t explain why forage fish, like herring, have declined by 98 percent or more in much of Puget Sound.
A new study suggests that the little guys are disappearing
herring, have declined by 98 percent or more in much of Puget Sound
MinM » Tue Feb 03, 2009 2:34 pm wrote:Taking Advantage Of The Jellyfish Invasion
by Madeleine Brand
Day to Day, February 3, 2009 · Giant jellyfish can grow as large as six feet in diameter and weigh 450 pounds. Over the years, millions have migrated from the coast of China into Japanese waters. Scientists believe they're floating on ocean currents warmed by global climate change. One Japanese entrepreneur, Kaneo Fukuda, is benefiting from the invasion by marketing jellyfish products, including makeup and mixed drinks. This interview originally aired October 3, 2007.
http://www.npr.org/templates/story/stor ... =100185758
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