In November of 2000, I was in Fiji as part of an IMAX underwater crew, working on a film entitled Coral Reef Adventure. I was able to shoot wide angle reef scenes with an explosion of life, as well as reefs that had been decimated by "coral bleaching".
Fiji is home to huge, vibrant soft corals and tiny, colorful reef critters. I was fortunate to be able to photograph a rare event, a Tritons trumpet snail feeding on a Crown-of-thorns sea star. Crown-of-Thorns sea stars are one of the primary predators on hard corals. The Tritons trumpet snail keeps the sea stars population in check, maintaining the coral reefs delicate balance.
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Corals need clear, clean, shallow water and plenty of sunlight to thrive. The water needs to be warm, but not too warm.
Global ocean temperatures are on the rise. If temperatures remain high for months at a time coral becomes "bleached" and die. The symbiotic algae within the coral tissue is lost, leaving only the white coral skeleton. Is it global warming? No one knows for sure. |