Comparison of mixed models and linear models for the variables selected in the preliminary PCAs (full data set).

<p>Summary and comparison of mixed and linear models and AIC values. Fixed effect variables: weight (average final weight of the three replicates, scaled), replicate (factor of three levels, replicate 1, 2 and 3; Day 2 and Day 3), hour (factor of two levels, first or second hour at which the experiment took place; Hour 2) and aquarium position (factor of three levels, as “R”, “M” and “L”; Aquarium 2 and Aquarium 3).</p> <p>(DOC)</p>