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Marine scientists tracked coral colonies in a remote area of the Great Barrier Reef and found that corals previously more resilient to bleaching suffered devastating and fatal bleaching during ...
Sixty major episodes of coral bleaching have occurred between 1979 and 1990, [58] [59] with the associated coral mortality affecting reefs in every part of the world. In 2016, the longest coral bleaching event was recorded. [60] The longest and most destructive coral bleaching event was because of the El Niño that occurred from 2014 to 2017. [61]
Huge stretches of coral reef around the world are turning a ghostly white this year amid record warm ocean temperatures. On Monday, the U.S. National Oceanic and Atmospheric Administration ...
Coral reefs around the world are experiencing global bleaching for the fourth time, top reef scientists declared Monday, a result of warming ocean waters amid human-caused climate change. Coral ...
Hawaii's coral reefs (e.g. French Frigate Shoals) are a major factor in Hawaii's $800 million a year marine tourism and are being affected negatively by coral bleaching and increased sea surface temperatures, which in turn leads to coral reef diseases. The first large-scale coral bleaching occurred in 1996 and in 2004 it was found that the sea ...
Coral bleaching in the Philippines. Bleaching is one significant threat to the corals. Bleaching is a process that expels the photosynthetic algae from the corals' "stomachs" or polyps. [36] This algae is called zooxanthellae. It is vital to the reef's life because it provides the coral with nutrients; it is also responsible for the color. [25]
Coral bleaching is also a major threat to all types of coral. Coral bleaching is when the coral expels the zooxanthella that they feed on, which causes them to turn white, hence "bleaching." Corals can not live long in this state, yet if environmental conditions return to normal, then the zooxanthella can return and the coral will return ...
The last global coral bleaching event happened in 2014 and lasted until 2017. More than 56% of global reef areas saw temperatures that could cause bleaching during that time period.