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. 2011 Dec 22;6(12):e29535. doi: 10.1371/journal.pone.0029535

Figure 4. Coral tissue biomass and Symbiodinium density by region and depth within regions.

Figure 4

Coral tissue biomass (left axis and white bars) and Symbiodinium density (right axis and shaded bars) data presented as mean values ± standard error. Statistically distinguishable versus indistinguishable patterns (at α = 0.05) are indicated letters above the histograms for each species (using lower case letters for tissue biomass and upper case letters for Symbiodinium densities). Statistical analyses conducted by either two-factor ANOVAs (for M. annularis, M. faveolata, A. cervicornis, and P. astreoides) or T-tests (for M. franksi, A. palmata, and S. siderea). Coral species identity is indicated (upper left) for each sub-panel.