| Observationsplats | C.V. (recr.)% | Recruitment series | |
|---|---|---|---|
| Begin | End | ||
| Central Alaska | 28.4 | 1920 | 1961 |
| Central Coast | 55.1 | 1948 | 1981 |
| Fraser River | 69.0 | 1961 | 1978 |
| Hooknose Creek | 122.6 | 1947 | 1961 |
| Johnstone Strait | 77.5 | 1955 | 1987 |
| Minter Creek, Washington | 242.4 | 1939 | 1955 |
| North Coast | 52.7 | 1948 | 1981 |
| Queen Charlotte Islands | 49.0 | 1953 | 1981 |
| Tillamook Bay, Oregon | 87.2 | 1956 | 1990 |
| West Coast Vancouver Island | 66.2 | 1953 | 1981 |