Giant jellyfish off Japan

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in Marine ecosystem

Swarms of giant jellyfish have appeared along the Pacific coast off Japan after apparently drifting from spawning grounds in Chinese and Korean waters causing a threat to Japan's fishing industry. The Echizen jellyfish have already cost the industry millions of Yen.
Watch the video:
http://news.bbc.co.uk/2/hi/science/nature/8385953.stm?ls