Fig. 3
Multidimensional scaling plot of group average (%coverage) of epibenthic invertebrates and algae assemblages from steel and concrete pillars at every sampling occasion (month) after deployment (1Â =Â 29 days, 2Â =Â 64 days, 3Â = 94 days, 4Â =Â 129, 5Â =Â 154, 12Â =Â 366 days). Steel pillars from the first sampling occasion were outliers as few or no species were recorded on them resulting in low similarity (<10%). As a consequence, they were excluded from the plot