Fig. 4From: Temporal dynamics of gastropod fauna on subtidal sandy sediments of the Ensenada de Baiona (NW Iberian Peninsula)nMDS ordination of monthly samples (centroids calculated on abundance data) for the three sites studied. a Site D2; b site D15; c site D17. Groups of samples determined by the SIMPROF test are shown. Sample of February 1996 for site D15 is not shown for the sake of clarity in the visualization of the ordination of the remaining samplesBack to article page