Percent compositions of free-living eukaryotic microorganisms in Tha Wang and Tham Phang coasts. Each identified read was classified into corresponding phylum. The proportional percentage of each phylum was calculated by dividing the number of the identified reads in a phylum with the total number of the identified reads. Tha Wang and Tham Phang were signified by red and blue barcharts, respectively. Phyla that belong to the kingdoms other than fungi are: (i) Plantae (Streptophyta, Chlorophyta, Bacillariophyta, Phaeophyceae, Ochrophyta, Pinguiophyceae, Xanthophyceae, Eustigmatophyceae, Stramenopiles, Labyrinthista, Haptophyta, Cryptophyta); (ii) Protista (Mycetozoa, Sarcomastigophora, Ciliophora, Apicomplexa, Dinophyta, Choanozoa, Euglenida); and (iii) Animalia (Porifera, Placozoa, Cnidaria, Arthropoda, Tardigrada, Chordata, Hemichordata, Echinodermata, Chaetognatha, Brachiopoda, Platyhelminthes, Rhombozoa, Sipuncula, Acanthocephala, Rotifera, Annelida, Mollusca, Gastrotricha, Nematomorpha, Priapulida, Nematoda).