Of the total carbonate removed by sea urchins, 22% corresponded to coralline aragonite and 78% to magnesium calcite; the latter was also significantly higher than the former t = -6.21, P = 0.000.
Del total de carbonatos removidos por los erizos, el 22% correspondió a aragonita coralina y el 78% a calcita de magnesio; esta última fue significativamente mayor que la primera t = -6.21, P = 0.000.