Table 1.
Stations used in the study. Station name, station code, sampling depth (metre), urchin size (average diameter ± standard deviation), position (WGS1984, latitude and longitude), distance (km) downstream the Vejrø station and number of analysed individuals per population (N) are shown
| Sea | Area | Station | Code | Depth | Size | Lat. (°N) | Long. (°E) | Distance | N |
|---|---|---|---|---|---|---|---|---|---|
| Belt Sea | Denmark | Vejrø | DV | 20 | 40.1 (5.5) | 55.93862 | 10.76797 | 0 | 30 |
| Skagerrak | Oslo fjord | Drøbak | D2 | 20 | 22.1 (1.9) | 59.66278 | 10.62596 | 430 | 28 |
| Skagerrak | Oslo fjord | Svestad | IO | 20 | 30.0 (6.3) | 59.77624 | 10.59165 | 440 | 30 |
| North Sea | Rogaland | Lysefjorden | LY | 22 | 48.0 (7.6) | 59.00875 | 6.315985 | 815 | 30 |
| Norwegian Sea | Torghatten | Helløya | NH | 5 | 46.1 (5.6) | 65.38705 | 12.0149 | 1645 | 30 |
| Norwegian Sea | Vega, nord | Skogsholmen | NS | 5 | 38.4 (5.4) | 65.81499 | 12.04164 | 2035 | 25 |
| Norwegian Sea | Vestfjord | Tysfjord | VI | 2 | 38.3 (5.2) | 68.23613 | 16.22802 | 2110 | 30 |
| Norwegian Sea | Salangen | Løksefjorden | SI | 5 | 35.3 (4.6) | 68.91894 | 17.70712 | 2380 | 29 |
| Norwegian Sea | Salangen | Meløyvær | SY | 2 | 48.2 (5.1) | 69.07234 | 16.47666 | 2335 | 29 |
| Barents Sea | Kongsfjord | Veidnes | FV | 5 | 52.1 (5.3) | 70.72 | 29.44 | 2865 | 30 |
| Barents Sea | Svalbard | Kapp Wijk | KW | 5 | 25.9 (3.1) | 78.6 | 15.1667 | 3335 | 30 |