Table 2.

Parameters and their statistical significance for a linear mixed model predicting MMR in Atlantic salmon was higher for fish tested in the swim tunnel and that there was also a negative effect of body mass.

Parameter	Value ± S.E.	df	t	P
Intercept	11.09 ± 0.63	42	17.73	<.001
Method (tunnel)	2.20 ± 0.41	29	5.39	<.001
Body mass (g)	−0.01 ± 0.004	29	−2.35	0.03

Here, MMR was calculated using the steepest slope of any linear regression with an R² > 0.95 (data and model fits corresponding to Fig. 3 in the paper).

Note: this model also had a random effect of fish ID.

Backward selection was used to arrive at this model, starting with all two-way interactions among method, body mass, and water temperature (see Methods).

Marginal and condition model R² = 0.30.