Table 3.

Summary of statistical models comparing the competitive ability and aggression of juvenile salmon sired by either EM or LM fathers

Response variable	Parameter estimate ± SE	t- or z-value	P-value
Competitive ability	0.54±0.99	0.55	0.59
Aggression	−0.31±0.38	−0.81	0.42

Competitive ability data were analyzed with a Gaussian linear mixed model, whereas the aggression data were analyzed with a Poisson generalized linear mixed model. Parameter estimates are given as treatment contrasts with respect to juveniles originating from EM fathers. Thus a positive value, e.g., for competitive ability, indicates that LM sired offspring would be more competitive than EM sired offspring. Note that neither of the comparisons presented are statistically significant.