When compared to the Ranong province, it can be seen that the temperature of the water surface, and Orthophosphate – phosphorus. Higher than in Phang Nga province. Meanwhile in Phang-Nga has the concentration of 3.77 to Silicate-silicon-25.23 µM. For Chlorophyll a in Ranong province, with an average between 2.37 ± 0.75 µg/l, which is higher than the average of Phang Nga province.