Fig. 4From: Ecological succession of benthic organisms on niche-type artificial reefsCommunity structure in the niche artificial reefs: non-parametric multidimensional scaling of the coverage (arcsine transform), based on the Bray-Curtis similarity index and the log(x + 1) transform, over the 100 weeks monitoring period. ∆ = first monitoring session, ◊ = second to sixth monitoring sessions and □ = seventh monitoring. Stress = 0.14Back to article page