| Main Ref. | Minchin, D., 2007 |
| To | Brackish and marine waters of Ireland |
| FAO area | Atlantic, Northeast |
| From | Southern Pacific |
| FAO area | |
| Year | 1957 |
| Range | |
| Period | 1950-1974 |
| Established in the Wild | yes, self reproducing |
| Established in Aquaculture | |
| Significant Ecological Interactions | yes - adverse |
| Significant Socio-economic Effects | |
| Introduced by | |
| Reason | biofouling |
| Other Reason | |
| Comments | Introduced via hull fouling, has established and is abundant. A competitor and fouling organism. Ref. Minchin, D., 2007 |