Figure 4 | Scientific Reports

Figure 4

From: Stylasterid corals build aragonite skeletons in undersaturated water despite low pH at the site of calcification

Figure 4

Carbonate B/Ca against δ11B. Stylasterid B/Ca and δ11B replicate results (this study) are compared to fibrous aragonite within scleractinia (D. dianthus )47, and crustose coralline algae (CCA18,21). Individual analyses from the same specimens are connected by solid trend lines (2 analyses or more). Dashed trendline shows the covariance between all aragonitic stylasterid measurements (p < 0.01). Blue arrow shows theoretical mixing line between solely aragonitic and solely high-Mg calcitic stylasterids.

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