Measurement of coral bleaching was conducted along the coastlines of Ranong and Phang Nga in May 2005 (Fig. 2).
The surveys were performed using line transects of 20–60 m in length at Ranong province with a total of 52 sampling stations
(15 stations at Phayam island, 18 stations at Kam Yai and Kam Nui islands, 9 stations at Khang Khao island, 5 stations at Lan island, and 5 stations at Khai Yai island)