Fig. 2

Circle of correlation of Principal Component Analyses (PCA) showing variables F1 (59.16%) and F2 (16.17%) represents the relationship in organisms (Dictyota dictyota; Thalassia stipulacea; Halophila filiforme and Echninoderm (Lytechinus variegatus)) in the three sites (BT, CA and CE) between all the metallic elements (Al, As, B, Ba, Cd, Co, Cr, Cu, Fe, K, Mg, Mn, Mo, Na, Ni, P, Pb, S, Sb, Sc, Se, Sr, Ti, V, Zr and Zn).