The algae provides up to 90 percent of the coral's energy. The suggestion that bleaching is adaptive is of considerable academic interest because it may explain why this trait has not been eliminated by selection , but it is of limited apparent value in mitigating the negative effects on coral reefs of anthropogenic factors that promote bleaching. This algae is an important component to the existence of coral. The longest-lasting coral bleaching event in the world has damaged reefs from the Caribbean to Australia to Southeast Asia, and according to the U.S. National Oceanic and Atmospheric Administration (NOAA), it’s not likely to stop anytime soon. While CORAL will be surveying portions of the world’s reefs, including the Great Barrier Reef (where bleaching has been recently observed), it’s unlikely that a CORAL campaign will coincide with an active bleaching event. Coral bleaching is a term used to describe what happens when coral loses its endosymbiotic algae. Coral Reefs are easily one of the most recognizable ecosystems on the face of our planet, and they are dying fast. The bleaching event began in June 2014 and continues today. Coral bleaching is a stress response. Corals in Western Australian waters were subjected to intense heatwaves during the summer of 2011, with widespread bleaching of corals, some of which were hundreds of years old. Understanding coral bleaching is the key to preventing it, stopping it when it occurs, and knowing why it is bad for our oceans. Read These Facts About Coral Bleaching Before it’s Too Late. Bleaching is associated with the devastation of coral reefs, which are home to approximately 25 percent of all marine species. This algae is an important component to the existence of coral. Scientists are racing to save coral. A coral is an animal that creates a calcium carbonate skeleton that looks much like a rock and has a symbiotic relationship with single cell algae known as zooxanthellae. Shockingly, the coral bleaching threat was only raised to level two a week earlier, when divers spotted coral bleaching in Australia's far north which exceeded expected levels. Prolonged bleaching events, like the one observed this year in the Pacific (circa 2000), have resulted in the death of 95 per cent or more of bleached corals in many parts of the world. From the smallest shrimp to the largest predator, sea creatures find both food and protection on coral … What Is Coral Bleaching? Coral bleaching is a term used to describe what happens when coral loses its endosymbiotic algae. This is called coral bleaching. image courtesy of oceanservice.noaa.gov Causes of Coral Bleaching Warmer than average water temperatures are the principal contributors of coral bleaching.

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