| Pays | Localité | Introduit | Année | Qualitative Value | Réf. |
|---|---|---|---|---|---|
| Alaska | Klondike study area | 2008 - 2008 | very common | 117867 | |
| Alaska | Klondike study area | 2009 - 2009 | rare | 117867 | |
| Alaska | Klondike study area | 2010 - 2010 | common | 117867 | |
| Alaska | Statoil study area | 2010 - 2010 | rare | 117867 |