Table 1. Population structure.
| Subpopulation I | Subpopulation II | |||
|---|---|---|---|---|
| 1996 | 1999 | 1997 | 2000 | |
| Population structure | ||||
| Sires, dams | 57, 129 | 37, 94 | 65, 79 | 95, 121 |
| Sires per dam, mean (range) | 1.00 (1–1) | 1.00 (1–1) | 2.41 (1–3) | 1.63 (1–3) |
| Dams per sire, mean (range) | 2.26 (1–4) | 2.54 (1–4) | 2.93 (1–5) | 2.06 (1–5) |
| Full-sib families, family tanks | 129, 129 | 94, 135 | 191, 259 | 197, 197 |
| Number of fish with records | ||||
| Freshwater nucleus station | 4994 | 3084 | 8099 | 5998 |
| Fish per full-sib family | 38.7 | 32.8 | 42.4 | 30.4 |
| Seawater station | 2573 | 2442 | 8351 | 7499 |
| Fish per full-sib family | 19.9 | 26.0 | 43.7 | 38.1 |