1) secondary data was used from web about the condition of corals in pulau hantu area and some company records etc. were used for data collection.
2)questionnaire was conducted to tourists in pulau hantu. the results of this questionnaire and economic analysis of the drop out rates in tourism in pulau hantu. some maps and statistical data showing the drop rates in tourism due to coral bleaching.
then finally ,a rough outline of what can be done to reduce bleaching of reefs and how realistic and helpful will these methods be in future.
conclusion of this research will be how corals are important for economy of a country and it is important to be aware of their bleaching.