Table 3.
Mean size-adjusted trait values for Rastrineobola argentea from Lake Victoria at the beginning (Z0) and end (Z1) of the time-series, along with % change and rate of phenotypic change in darwins. See text for equation for estimating darwins
| Trait | Time period | Z0 | Z1 | % Change | Rate (darwins × 103) |
|---|---|---|---|---|---|
| L50 (overall) | 1966 to 2008–10 | 46.54 | 39.07 | −16.05 | −4.07 |
| L50 (fishing) | 1991 to 2008–10 | 46.90 | 39.07 | −16.70 | −10.15 |
| Relative fecundity | 1966 to 2008–10 | 590 | 837 | +41.91 | 8.14 |
| Relative egg volume (mm3) | 1966 to 2008–10 | 0.046 | 0.078 | +68.11 | 12.08 |
| Relative clutch volume (mm3) | 1966 to 2008–10 | 26.05 | 51.42 | +97.39 | 15.81 |
| Relative ovary weight (mg) | 1966 to 2008–10 | 74.44 | 100.48 | +34.99 | 6.98 |