Table 1.

Characterization of dominant, subordinate, and sham-treated rainbow trout (Oncorhynchus mykiss)

	Dominant (n = 12)	Subordinate (n = 12)	Sham (n = 13)	P Value
Behavior score	1.6 ± 0.1	−1.6 ± 0.2	—	—
Plasma cortisol concentration, ng/ml	4.0 ± 0.9A	111.4 ± 25.2B	2.5 ± 0.5A	<0.001
Food intake, g/day	1.12 ± 0.13A	0.04 ± 0.04B	0.62 ± 0.15A	<0.001
SGR, %/day	0.48 ± 0.14A	−0.50 ± 0.24B	−0.15 ± 0.16A,B	0.003

Values are means ± SE. Data were analyzed by ANOVA and ANOVA on ranks for food intake, and treatment groups that share a letter are not significantly different from one another. Specific growth rate (SGR) was calculated as (ln final mass – ln initial mass)/interaction period (day) × 100%.