Figure 2

Alpha diversity in the grey mullet gut microbiota. (A) Observed richness, (B) Chaos diversity index, (C) Shannon diversity, and (D) inverse Simpson diversity indexes were calculated following rarefaction-based normalization of the OTU table. Significant p values (*p < 0.05; **p < 0.01) were obtained using a permutation T-test. X axis shows the group IDs; JV is juvenile, AD is adult, NWP1 is cryptic species 1, NWP2 is cryptic species 2, and NWP3 is cryptic species 3.