PERMANOVA testing for the effects of species, year and depth on the Mg content in calcite.

The design included the fixed factors (species, year and depth) and site nested in the combination of species, year and depth. PERMANOVA was done on untransformed skeletal Mg-calcite using a Euclidean distance similarity matrix. % var = Estimates of components of variation of Mg content in calcite for each factor in the analysis. Bold type indicates significant difference at p = 0.001.