Statistical tests (ANOVA, 0.95 confidence coefficient) carried out 5 months after the tsunami indicated that the coral growth
rate at Chong Khat bay and Tao bay was significantly different. And Phak Kat bay, no significant difference was found between Tao bay and Phak Kat bay. In near shore areas such as Khang Khao and Lan islands, the growth of coral were at a mean value of 3.9 2.7 cm and 3.8 0.0 cm, respectively
was able to grow rapidly, but corals in near shore areas were found in a poor condition covered with macroalgae and settled particulates