This
protocol did not include a hydrazine step that is typically included to
remove oxide coatings, therefore both lattice bound and non-lattice
bound elements are reported here. The bulk coral sampleswere homogenized
by crushingwith an agate mortar and pestle and passed through
polypropylene sieves to an optimal size fraction (200–700 μm) (Shen
and Boyle, 1987). The samples were then leached in 0.015 N HNO3 for
20 min to isolate compound trabeculae.