Fig. 3
a Mean percentage cover (+SD) of thin CCA, thick CCA, Hydrolithon onkodes, Pseudolithoderma adriaticum, Lobophora variegata, and filamentous Ceramiales, in relation to the significant terms ‘Sector’ and ‘Site’. b Variance components, factors are: Sec = Sector; Si(Sec) = Site(Sector); Sta(Si(Sec)) = Station(Site(Sector)), Res = residual. *Scales of significant variation according to permutational ANOVA: *p < 0.05, **p < 0.01, ***p < 0.001