Country | Locality | Introduced | Year | Qualitative Value | Ref. |
---|---|---|---|---|---|
Alaska | Chukchi Sea | 2004 - 2004 | absent | 118514 | |
Alaska | Chukchi Sea | 2009 - 2009 | rare | 118514 | |
Alaska | Chukchi Sea | 2010 - 2010 | extremely abundant | 118514 | |
Alaska | Chukchi Sea | 2012 - 2012 | rare | 118514 |