Table 1.

Summary of t-tests comparing body size, body condition, and investment in reproduction among adult female (EM, n = 10; LM, n = 10) and male (EM, n = 9; LM, n = 11) salmon used to provide offspring for the experiment

Measurement	EM females	LM females	t-value	P-value
Body size (mm)	569.5±6.8	568.5±7.2	0.10	0.92
Body condition	−0.005±0.005	−0.004±0.007	−0.08	0.94
Reproductive investment	0.02±0.02	0.03±0.02	−0.28	0.79
	EM males	LM males
Body size (mm)	578.3±12.0	584.6±5.9	−0.46	0.65
Body condition	−0.004±0.01	−0.003±0.01	−0.02	0.98

Mean values (±SE) for each trait are displayed for EM and LM groups. Body condition and reproductive investment were calculated as residuals from regressions of somatic mass and clutch mass on body size respectively (all variables log-transformed) from a larger sample of 73 individuals. Investment in reproduction was not measured for male fish.