Table 5.

The fertilisation success (proportion of eggs fertilised) of wild anadromous males and growth hormone transgenic and nontransgenic mature male parr during 11 pair-wise competitive breeding trials. Representation indicates the number of trials where successful fertilisation was observed by a male type

Male type	Median	0.25 Quantile	0.75 Quantile	Range	Representation
Anadromous male*	0.98	0.92	1	0.59–1	11
Transgenic parr	0	0	0.06	0–0.22	1
Nontransgenic parr	0	0	0	0–0.41	5

^*The anadromous males fertilised significantly more offspring than either parr genotype.