inside the polyps live flitoplankin, producing amino acids.hese amino acids are absorbed by the nutrients. calcium within seawater, calum carbonate skeleton. the slow growing coral is very sensitive to changes in its environment. this satellite image shows the sea bed around boracay island. the island is in the middle. the coral areas are shown in pink. dr. fortes paid attention off the white beach. by following the changes occurring since 1988, the decline is very easy to analysis shows that the amount of coral in the sea off white beach has decreased by 40% over the past two decades. between the beach and the coral, will is also an increasing area in brown, where the coral has died and simply left behind its crumbled skeleton. dr. fortes has been analyzing photographs. they show in certain areas, the coral has vanished altogether. >> the area, 1988, you have coral not just here, from there, there, but look, practically disappeared. >> this is dinowad, photographed in 1988. the darker areas in the water show extending for around 100 meters. a