Figure 2.

Krona Plot at the class level. Gammaproteobacteria of the genus Endozoicomonas were identified from M. (Oxymycale) acerata as well as Gammaproteobacteria belonging to the genus Colwellia and some bacterial strains classified as Fulvivirga and Ulvibacter, two genera included into Bacteroidetes. Bacteria of the family Rhodobacteraceae (class Alphaproteobacteria) were identified in H. (Rhizoniera) dancoi and H. pilosus. M. sarai was the only species showing a relative abundance of Polaribacter, an additional species grouped into the Bacteroidetes phylum. Sample code: B4 = M. (Oxymycale) acerata; D4 = H. pilosus, D6 = M. sarai, C6 = H. (Rhizoniera) dancoi. “1 more” corresponds to Acidicrodobiia group, which is present in trace levels.