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is a very large jellyfish, in the same size class as the lion's mane jellyfish, the largest cnidarian in the world. It is edible but not considered high quality. ==Overview== The diameter when fully grown is slightly greater than the height of an average man. The species was named in tribute to Mr. Kan'ichi Nomura (C18–C19), Director General of the Fukui Prefectural Fisheries Experimental Station, who in early December 1921 sent a specimen in a 72-litre wooden tank to Professor Kishinouye, who found that it was unknown and spent some time at the station to study living specimens.〔 〕 Growing up to in diameter and weighing up to ,〔(Discovery News -- Monster Jellyfish )〕 Nomura's Jellyfish reside primarily in the waters between China and Japan, primarily centralized in the Yellow Sea and East China Sea.〔Uye, S., 2008. Blooms of the giant jellyfish ''Nemopilema nomurai'': a threat to the fisheries sustainability of the East Asian Marginal Seas. ''Plankton and Benthos Research'', 3 (Supplement): 125-131. http://www.plankton.jp/PBR/issue/vol03_suppl/03suppl_125.pdf〕 Population blooms appear to be increasing with frequency in the past 20 years.〔Richardson, A.J., Bakun, A., Hays, G.C., and Gibbons, M.J. 2009. The jellyfish joyride: causes, consequences and management responses to a more gelatinous future. ''Trends in Ecology & Evolution'', 24: 312-322. 〕 Possible reasons for the population increase in Nomura's Jellyfish include climate change, overfishing, and coastal modification adding substrate for asexually producing polyps.〔 In 2009, a 10-tonne (11 ton) fishing trawler, the Diasan Shinsho-maru, capsized off Chiba on Tokyo Bay as its three-man crew tried to haul in a net containing dozens of Nomura's Jellyfish; the three were rescued by another trawler.〔 〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Nomura's jellyfish」の詳細全文を読む スポンサード リンク
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