Abstract:Since the middle and later in the 1990s, macro-jellyfish bloom has happened in successive years in the north part of the East China Sea Region and the sea area of the Yellow Sea, and the situation has aggravated in recent years and resulted in an ecological disaster in these areas. According to the literature records, the dominant species were eatable Stomolophus meleagris and uneatable Cyanea sp. The ecology of sea deteriorated badly, fishery organisms distributed rarely and the main fishery resources decr...