Coral bleaching is the loss of intracellular endosymbionts (Symbiodinium, also known as zooxanthellae) through either expulsion or loss of algal pigmentation. The corals that form the structure of the great reef ecosystems of tropical seas depend upon a symbiotic relationship with unicellular flagellate protozoa that are photosynthetic and live within their tissues. Zooxanthellae give coral its coloration, with the specific color depending on the particular clade. Under stress, corals may expel their zooxanthellae, which leads to a lighter or completely white appearance, hence the term "bleached".
Other articles related to "coral bleaching, coral, bleaching, corals":
... increase in ocean temperatures, which cause coral bleaching ... It is claimed by scientists that over 40% of Belize's coral reef has been damaged since 1998 ... The Belize Barrier Reef has been affected by two mass-bleaching events ...
... Other coral reef provinces have been permanently damaged by warm sea temperatures, most severely in the Indian Ocean ... Up to 90% of coral cover has been lost in the Maldives, Sri Lanka, Kenya and Tanzania and in the Seychelles ... the 1970s of thermal tolerance in Hawaiian corals and of oceanic warming led researchers in 1990 to predict mass occurrences of coral bleaching ...
Famous quotes containing the words bleaching and/or coral:
“Worn down by the hoofs of millions of half-wild Texas cattle driven along it to the railheads in Kansas, the trail was a bare, brown, dusty strip hundreds of miles long, lined with the bleaching bones of longhorns and cow ponies. Here and there a broken-down chuck wagon or a small mound marking the grave of some cowhand buried by his partners on the lone prairie gave evidence to the hardships of the journey.”
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