Scientific Reports

Table 2 Mineralogy (mean ± standard deviation) of coralline algae families Corallinaceae, Hapalidiaceae and Sporolithaceae.

From: Global assessment of coralline algae mineralogy points to high vulnerability of Southwestern Atlantic reefs and rhodolith beds to ocean acidification

Family	Corallinaceae	Hapalidiaceae	Sporolithaceae
% high Mg-calcite	96.7 ± 3.4^A	88.9 ± 3.6^AB	86.2 ± 6.5^B
% Aragonite	2.7 ± 1.5^A	10.5 ± 1.4^B	13.4 ± 3.5^B
% Dolomite	0.6 ± 0.6^A	0.6 ± 0.2^A	0.4 ± 0.4^A
% Mg in calcite	19.9 ± 3.5^A	18.57 ± 4.7^A	24.28 ± 1.9^A

Different letters are used to indicate statistically differences (p < 0.05) of percentage of CaCO₃ polymorphs obtained through post-hoc Dunn’s test after the Kruskal–Wallis analysis.

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