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| Population | Coordinates (lat; long) | Number of individuals |
| Spitsbergen – Nordenskioldkysten | 77.8°; 13.6° | 3 |
| Spitsbergen - Ny-Ålesund | 78.92°; 11.91° | 4 |
| Russia - Nova Zembla | 71.4°; 54° | 2 |
| Russia – Kolguev | 69.1°; 49.9° | 2 |
| Russia – Kanin | 68°; 45° | 2 |
| The Netherlands - Krammersche Slikken | 51.6°; 4.2° | 3 |
