| Main Ref. | Bartley, D.M. (comp./ed.), 2006 |
| To | Ukraine |
| FAO area | Mediterranean and Black Sea |
| From | United States of America |
| FAO area | |
| Year | |
| Range | 1980 - 1989 |
| Period | 1975-present |
| Established in the Wild | yes |
| Established in Aquaculture | |
| Significant Ecological Interactions | unknown - adverse |
| Significant Socio-economic Effects | |
| Introduced by | unknown |
| Reason | unknown |
| Other Reason | |
| Comments | Luckily for the jellyfish, it entered the Black Sea at a time when the combined effects of eutrophication and overfishing had removed the main plankton-eating fish, leaving an open niche for the jellyfish to exploit. |