Fig 6.

Principal coordinate analysis (PCoA): (A) PCoA of blow microbial community from wild and under human care bottlenose dolphins, sperm whale, and the pooled seawater sample. It’s possible to visualize a greater similarity between different species when sampled in the wild (sperm whale and bottlenose dolphin samples), while there was distance between the same species (bottlenose dolpdhin) sampled in wild vs. kept under human care. Seawater communities were distinct from all other samples. (B) PCoA of blow microbial community obtaining from meta-analysis by adding public data [10] to our dataset.