Data for: Ocean acidification has a strong effect on communities living on plastic in mesocosms

We conducted a mesocosm experiment to examine how ocean acidification (OA)
affects communities of prokaryotes and eukaryotes growing on single-use
drinking bottles in subtropical eutrophic waters of the East China Sea.
Based on 16S rDNA gene sequencing, simulated high CO2 significantly
altered the prokaryotic community, with the relative abundance of the
phylum Planctomycetota increasing by 49 % under high CO2. Under high CO2,
prokaryotes in plastisphere significantly enhanced nitrogen dissimilation
and ureolysis, raising the possibility that elevated CO2 may modify
nutrient cycling in subtropical eutrophic waters. The relative abundance
of pathogenic and animal parasite bacteria also increased under simulated
high CO2. Our results show that simulated high CO2 significantly affected
some secondary producers based on 18S rDNA gene sequencing. For example,
Mayorella amoebae were highly resistant to OA whereas labyrinthulids were
sensitive to high CO2. This shows that OA may alter plastisphere food
chains in subtropical eutrophic waters.