Schematic diagram of free-living prokaryotic phyla at Tha Wang and Tham Phang coasts. Each identified read, representing by a red (specific to Tha Wang), blue (specific to Tham Phang), or grey (both at Tha Wang and Tham Phang) dot, is annotated to species level by BLASTN with E-value ≤ 1E-08 against NCBI non-redundant databases. Pale red and blue color dot represents inclusion of significant hits with 1E-08 < E-value ≤ 1E-02. The position of each species-annotated dot on a circular diagram is arranged based on its phylogenetic distance among one another in a clockwise manner, and species belongin to the same phyla is placed the same colors. Dot size refers to a percent relative abundance as more than one read could be annotated the same species. See Methods for details.