Jiant Jellyfish

How do you tackle an invasion of giant jellyfish? Try making sushi
By Richard Lloyd Parry in Tokyo

THEY are called echizen kurage and they sound like monsters from the trashier reaches of Japanese science fiction.

They are 6ft wide and weigh 450lb (200kg), with countless poisonous tentacles, they have drifted across the void to terrorise the people of Japan. Vast armadas of the slimy horrors have cut off the country’s food supply. As soon as one is killed more appear to take its place.
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Echizen kurage is not an extraterrestrial invader, but a giant jellyfish that is devastating the livelihoods of fishermen in the Sea of Japan. Nomura’s jellyfish, as it is known in English, is the biggest creature of its kind off Japan and for reasons that remain mysterious its numbers have surged in the past few months.
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SEA MONSTERS

The most poisonous jellyfish is the Australian sea wasp, or box jellyfish, with enough venom to kill 60 people. Wearing tights is an effective defence

The largest jellyfish ever found was a lion’s mane, with a bell 2m (7ft) across, and tentacles extending more than 35m

The notorious Portuguese man o’war is not a jellyfish at all but a collection of different organisms including stinging tentacles

Jellyfish have both male and female characteristics. A group releases sperm and eggs which mix in the water

A collection of jellyfish is known as a smack