Table 2. Results of ANCOVA examining the influence of family and rearing environment on Atlantic salmon juvenile body mass.

Fork length was included in the model as a covariate. The null hypothesis that each model factor’s effect on body mass was zero was tested with the F-statistic. Model and error degrees of freedom (DF) are indicated for the model as are DF for each factor. P-values falling below the critical α (0.05) are bolded.

		DF	F	P
Model		6,23	36.34	<0.001
	Length	1	22.68	<0.001
	Family	2	38.03	<0.001
	Rearing environment	1	19.76	<0.001
	Family × rearing environment	2	0.09	0.341