| Country | Locality | Introduced | Year | Qualitative Value | Ref. |
|---|---|---|---|---|---|
| Greenland | off Greenland | 1982 - 1996 | abundant | 80685 | |
| Russian Federation | Barents Sea | 1998 - 2006 | common | 80862 | |
| United States (contiguous states) | Penobscot Bay, Maine | 1997 - 1997 | common | 39299 | |
| United States (contiguous states) | Penobscot Bay, Maine | 1998 - 1998 | absent | 39299 | |
| Alaska | Bering Sea Shelf | 1990 - 1990 | 122396 | ||
| Alaska | Northern Bering Sea | 2004 - 2004 | abundant | 121517 | |
| Alaska | Northern Bering Sea | 2005 - 2005 | abundant | 121517 | |
| Alaska | Northern Bering Sea | 2006 - 2006 | abundant | 121517 | |
| Alaska | Northern Bering Sea | 2007 - 2007 | abundant | 121517 | |
| Alaska | Northern Bering Sea | 2008 - 2008 | absent | 121517 | |
| Alaska | Northern Bering Sea | 2009 - 2009 | abundant | 121517 | |
| Alaska | Southern Bering Sea | 2004 - 2004 | abundant | 121517 | |
| Alaska | Southern Bering Sea | 2005 - 2005 | abundant | 121517 | |
| Alaska | Southern Bering Sea | 2006 - 2006 | absent | 121517 | |
| Alaska | Southern Bering Sea | 2007 - 2007 | abundant | 121517 | |
| Alaska | Southern Bering Sea | 2008 - 2008 | absent | 121517 | |
| Alaska | Southern Bering Sea | 2009 - 2009 | abundant | 121517 |