Nemopilema nomurai, which suddenly appears in the summer and autumn off the national shores, is doing harm on national fishing and the tourism industry. Massive appearance and weight of Nemopilema nomurai often destroys fishing gears or impairs the qualify of fishery products, as well as causes social problems like shock and skin damages, when contacting with fishermen and beach bathers. Jellyfish is in the non-predation relation with other ocean lives, but the massive appearance would be chaotic in the surrounding ecosystem.

In the National Institute of Fisheries Science, joint researches are conducted to study the reason, countermeasures and utilization of massive appeared jellyfish. This project examines on biological features of jellyfish and develops technologies to find out why the massive appearance occurs and estimate its occurrence and movement. To minimize the damages on fisheries, NIFS is now developing jellyfish-discharge devices and searching for usable substances from jellyfish extract.

The marine environment headquarter of NIFS has since 2004 been monitoring the appearance and moving route of jelly fish, but there's more to be done for real-time monitoring on the whole nation's coastal area. The objective of the establishment of the jellyfish information center is to establish monitoring system and to prepare for information-sharing system for comprehensive countermeasures in the association with the National Institute of Fisheries Science, fishermen and fisheries related agencies, at the level of the Ministry of Oceans Fisheries. Extensive researches of the jellyfish information center will contribute to setting up the estimation model of jellyfish's moving route and offer real-time based information on the appearance of super jellyfish to minimize damage from it.

Jellyfish Monitoring Network consists of 271 fishermen, 11 local governments and 86 public officials from 12 local governments, and 20 researchers from the West Sea, South Sea, and Jeju Fisheries Research Institutes of NIFS. Collected materials and information will be provided to the public by internet, telephone, and fax after being analyzed in the jellyfish information center(http://www.nifs.go.kr/jelly/ Tel:051-720-2236 Fax:051-720-2239) under NIFS to inform the moving route of jellyfish, give an alarm about poisonous jellyfish, and select workable zone