Biplot of results of Principal Components Analysis with supplemental variables on dominant sessile benthic cover, mobile invertebrates, and fish biomass by trophic group.

<p>Sessile benthic cover data were arcsine square root transformed, mobile invertebrates and fish biomass were ln(x+1) transformed prior to analysis. All data were centered and standardized. Statistical results are shown in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0187935#pone.0187935.t006" target="_blank">Table 6</a>.