The coral stress indicator guideline is available for download here. This is an output from the research project “Stress indicator for coral and zooxanthellae at the southern reef of Phuket for resistance to coral bleaching” under the collaboration between COCC members (Dr. Mathinee Yucharoen, Asst. Prof. Dr. Sutinee Sinutok, Dr. Ponlachart Chotikarn, and Dr. Manasawan Saengsakda Pattaratumrong) and Dr.Lalita Putchim from the Department of Marine and Coastal Resources. The project is supported by the National Science and Technology Development Agency (NSTDA).