| Main Ref. | AquaNIS, 2012 |
| To | Port of Kiel |
| FAO area | Atlantic, Northeast |
| From | unknown |
| FAO area | |
| Year | 2015 |
| Range | |
| Period | 1975-present |
| Established in the Wild | |
| Established in Aquaculture | |
| Significant Ecological Interactions | |
| Significant Socio-economic Effects | |
| Introduced by | |
| Reason | accidental with ships |
| Other Reason | |
| Comments | It was first recorded in 1960 but it was assumed that Pachycordyle michaeli died out, until it was found again in Port of Kiel in 2015. |