Species richness estimates and diversity of 16S rRNA gene sequences as determined by MOTHUR software.

aNumber of unique OTUs defined by using the furthest neighbor
algorithm in MOTHUR at 97% similarity.
bAbundance based coverage estimator (ACE).
cShannon-weaver index of diversity (H′).
FWS – Parnaioca freshwater spring;
FWP – Parnaioca river; FWM
– mangrove; SWP – Parnaioca beach;
SWA – Aventureiros beach; SWM
– seawater near Meros island. FW and
SW were calculated by merging the respective
libraries.