Table 5 Number of fish sampled, body length (BL), body weight (BW), gonadosomatic index (GSI), and ovarian developmental stage of female Japanese sardine sampled for quantitative PCR
Age | Sampling month | Number of fish | BL (mm) | BW (g) | GSI | Ovarian development |
|---|---|---|---|---|---|---|
2 | September | 5 | 157.0 ± 3.3 | 41.7 ± 3.2 | 0.44 ± 0.03 | Immature |
|  | October | 6 | 167.3 ± 4.7 | 57.1 ± 7.1 | 1.02 ± 0.08 | Previtellogenic growth |
|  | December | 5 | 173.4 ± 4.4 | 70.5 ± 7.4 | 1.51 ± 0.43 | Mid-vitellogenesis |
|  | January | 5 | 184.6 ± 3.4 | 79.1 ± 4.3 | 2.63 ± 0.36 | Late vitellogenesis |
3 | September | 4 | 184.5 ± 3.9 | 78.8 ± 3.4 | 0.48 ± 0.03 | Immature |