| Country | Locality | Introduced | Year | Qualitative Value | Ref. |
|---|---|---|---|---|---|
| Greenland | off Greenland | 1982 - 1996 | rare | 80685 | |
| New Zealand | East Coast of the South Island | 1991 - 1996 | extremely abundant | 58461 | |
| New Zealand | East Coast of the South Island | 1996 - 1999 | extremely abundant | 58461 | |
| New Zealand | Northeastern and Eastern Chatham Rise | 2007 - 2007 | common | 87166 | |
| England and Wales (UK) | R1 - between Flamborough Head and Winterton | 1973 - 1995 | absent | 80786 | |
| England and Wales (UK) | R2 - east coast between Winterton & North Foreland | 1973 - 1995 | rare | 80786 | |
| England and Wales (UK) | R3 - between North Foreland & Portland Bill | 1973 - 1995 | absent | 80786 |