2.3. Statistical analysis
The data were analyzed to detect a trimming effect on the
understory fish community of Rookery Bay using a number of
methods. First, two-way repeated measures ANOVAs with year (i.e.
pre-trimming, post-trimming) and month as factors, were run to
identify changes in the paired differences in the density or biomass
of the fish assemblages in the different plot types (i.e. impact versus
control).