Aurelia coerulea or Asian moon jelly is a species of moon jelly in the genus Aurelia. This species is native to the seas off Japan, China, Korea, and California, as well as the Mediterranean and other temperate seas. It is particularly abundant in artificial habitats and sheltered regions. It has a very high reproductive rate which can cause blooming events. A.coerulea blooming causes problems such as impairing fisheries, clogging the nuclear power plants and disrupting the local zooplankton abundance. The chemical compounds the species secretes as a self-defense mechanism can be used for pharmaceutical purposes.

Habitat A.coerulea are mainly distributed in culture ponds, artificial reefs, lagoons, marinas, and other cold and shady artificial constructions for settlement and proliferation. They are weak swimmers so those structures can protect the polyps from being washed away. Hypoxia in coastal waters induces stress and disrupts life cycles of the benthic organisms, but A.coerulea polyps are more tolerant than some other competitors under low dissolved oxygen level, so their population increase while others left due to stress. A.coerulea like ambient temperature, disrupted temperature and salinity will bring detrimental effects to them.