Table 2:
Indices of reproductive potential and reproductive productivity for female P. pelagicus in each 5 mm CW size class.
Metric | Size class (mm CW) | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ||||||||||||||||
91–95 | 96–100 | 101–105 | 106–110 | 111–115 | 116–120 | 121–125 | 126–130 | 131–135 | 136–140 | 141–145 | 146–150 | 151–155 | 156–160 | 161–165 | 166–170 | |
A. Percentage of females caught | 4.32 | 5.54 | 8.09 | 9.18 | 10.29 | 9.64 | 9.77 | 9.77 | 7.50 | 6.43 | 5.60 | 3.64 | 2.01 | 1.70 | 0.87 | 0.70 |
B. Percentage of ovigerous (OVI) females | 0.28 | 1.13 | 2.11 | 7.03 | 10.83 | 12.10 | 12.10 | 12.94 | 10.13 | 9.28 | 6.89 | 5.63 | 4.64 | 2.81 | 1.27 | 0.42 |
C. Ratio of OVI females to adult females | 0.01 | 0.03 | 0.04 | 0.12 | 0.16 | 0.19 | 0.19 | 0.21 | 0.21 | 0.22 | 0.19 | 0.24 | 0.36 | 0.26 | 0.23 | 0.14 |
D. Mean total potential fecundity (×100,000) | 2.64 | 3.85 | 4.16 | 4.95 | 6.82 | 7.13 | 8.26 | 9.71 | 11.07 | 12.59 | 12.26 | 12.37 | 14.88 | 14.21 | 13.69 | 15.35 |
E. Index of reproductive potential standardised to the value of 100.00 in the 106–110 mm CW size class | 1.00 | 7.51 | 22.21 | 100.00 | 237.21 | 260.02 | 305.45 | 384.02 | 263.29 | 235.29 | 148.17 | 79.35 | 43.36 | 21.27 | 4.73 | 1.41 |
F. Percentage of total egg production | 0.05 | 0.36 | 1.05 | 4.73 | 11.22 | 12.30 | 14.45 | 18.16 | 12.45 | 11.13 | 7.01 | 3.75 | 2.05 | 1.01 | 0.22 | 0.07 |
G. Productivity (F/A) | 0.01 | 0.06 | 0.13 | 0.52 | 1.09 | 1.28 | 1.48 | 1.86 | 1.66 | 1.73 | 1.25 | 1.03 | 1.02 | 0.59 | 0.26 | 0.10 |