Fig. 6From: Reducing the arbitrary: fuzzy detection of microbial ecotones and ecosystems – focus on the pelagic environmenta Unweighted network representation of the relationship between the fuzzy community cluster centroids (defined for this network as the pool of OTUs that have a membership grade of 0.85 or more inside the cluster). The nodes have been coloured according to the water masses. The width of the links is proportional to the number of shared OTUs, which are reported on the correlation matrix (panel b)Back to article page