| Main Ref. | Bartley, D.M. (comp./ed.), 2006 |
| To | United Kingdom |
| FAO area | Atlantic, Northeast |
| From | China, Korea, Japan |
| FAO area | |
| Year | 1913 |
| Range | |
| Period | 1900-1924 |
| Established in the Wild | yes |
| Established in Aquaculture | |
| Significant Ecological Interactions | unknown - undecided |
| Significant Socio-economic Effects | |
| Introduced by | unknown |
| Reason | unknown |
| Other Reason | |
| Comments | Transport on ships' hulls in the polyp stage (Carlton 1985) from the western Pacific Ocean in the 19th century may be the mechanism of introduction. Edwards (1976) suggested that it may have arrived much earlier from Japan with importations of Japanese oysters. |