Table 1. The percentage of males from repeated single pair mating of 19 randomly selected zebrafish pairs.
| Mating Pair | Cross (male %) | |
| 1st | 2nd | |
| Male-biased offspring | ||
| 1 | 88.1 | 86.4 |
| 2 | 86.7 | 79.0 |
| 3 | 75.4 | 60.3 |
| 4 | 71.0 | 84.2 |
| 5 | 68.3 | 78.8 |
| 6* | 82.9 | 57.7 |
| Mean + | 77.9 | 77.7 |
| Unbiased offspring | ||
| 7 | 57.1 | 68.6 |
| 8 | 51.2 | 52.5 |
| 9 | 44.4 | 49.6 |
| Mean | 50.9 | 56.9 |
| Female-biased offspring | ||
| 10 | 37.5 | 36.7 |
| 11 | 31.8 | 27.8 |
| 12 | 28.1 | 19.3 |
| 13 | 22.4 | 24.7 |
| 14 | 19.4 | 28.2 |
| 15 | 19.1 | 15.5 |
| 16 | 18.5 | 33.9 |
| 17 | 13.1 | 14.5 |
| 18 | 10.0 | 15.4 |
| 19 | 0.0 | 8.0 |
| Mean | 25.2 | 26.6 |
*
Removed from further analysis.
+
Does not include mating pair 6.