Megabenthic community clusters and their respective total taxonomic richness, mean biomass, mean depth, as well as the proportion of hard/soft substrate stations in each cluster (variables used to attribute a ‘label’ to each community are in bold).

For each community cluster, the five dominant taxa in terms of biomass and the five most significant indicator taxa (p<0.05) ranked according to their indicator value index (IndVal) are shown. SD: standard deviation. ‘IndVal’ index is a measure of association between a taxon and a cluster of stations and is calculated as the product of specificity (mean biomass of a given taxon within a cluster compared to the other clusters) and fidelity (taxon occurrence at stations belonging to a cluster).