| Locality | C.V. (recr.)% | Recruitment series | |
|---|---|---|---|
| Begin | End | ||
| Eastern Black Sea | 71.7 | 1970 | 1994 |
| Western Black Sea | 65.1 | 1971 | 1993 |
| Celtic Sea | 63.6 | 1982 | 1991 |
| Irish Sea | 28.3 | 1970 | 1992 |
| North Sea | 55.7 | 1930 | 1991 |
| North Sea | 3,174.2 | 1920 | 1993 |
| ICES VIa | 72.9 | 1965 | 1992 |
| ICES VIId | 60.5 | 1976 | 1990 |