executive summary
introduction
study area
Methodology
results
discussions
conclusions
objective
Thailand is located in tropical climate with enable to support wide diversity of coastal lives such as mangroves, seagrass and coral. The coral reefs are important habitats of various species and valuable fisheries and tourist attraction.
koh kradad is located st the southeastern of Moo Koh Chang Nation park.The reefs in Koh Kradad are fringing type. It has developed because of a few effects from land. Koh Kradad where the Sea floor is cover by sand. The reefs that can be found around this island, are wide approximately 500-1000 meters. Most of reefs are massive coral. So this site was chosen because it has wide reefs area.
Satellite data used in this study was Landsat TM images band 1-7 acquired on Fed 17 1999. It was geometric correction with ground control point (GCP) and topographic map 1:50000. And it was cut off land by spectral digitization eith near infrared band.
Field survey had two processes. Ground Truthing Transect Method applied from Life Form Bentic Line, the four line transects were laid in each side of island. It started from beach follow to slope edge, start point and every 30 meters in each line second process is to evaluate classification image analysis. This survey was random around island, survey points was recorded possitions and sea floor cover.