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With coral research delayed by crash, scientist not waiting to dive back in


Sue Surkes is The Times of Israel s environment reporter.
The Fleur de Passion research ship before it left Eilat in southern Israel for Port Sudan, July 19, 2021. ((Marcos Schonholz)
A planned survey of Red Sea corals by an international team of scientists will need to be postponed until next year after the much-heralded expedition ran aground just a day after setting sail from Eilat last week, one of the scientists on board said Sunday.
The Fleur de Passion, a former Nazi ship re-outfitted to carry the scientific expedition, is still stuck on a reef in the Straits of Tiran with untold damage to it, and hundreds of thousands of dollars worth of scientific equipment could be in danger, Prof. Maoz Fine, one of six scientists aboard the ship, told The Times of Israel. ....

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Corals in the northern Red Sea can resist global warming • Earth.com


05-03-2021
By
Earth.com staff writer
Corals in the northern Red Sea, along with their symbiotic algae, appear to be overcoming the threat of global warming. In a new study from EPFL, experts are closer to understanding why.
Global warming is pushing ocean temperatures beyond the limit that coral reefs, as well as many other marine organisms, will be able to survive. For example, the photosynthetic algae that provide corals with essential nutrients will not be able to resist the temperatures that are projected by the end of this century.
These symbiotic algae contain a variety of pigments that give coral reefs their brilliant colors. As the algae are lost, the corals turn white in a process known as coral bleaching.  ....

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Northern Red Sea corals pass heat stress test with flying colors


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IMAGE: The aquarium system in which scientists submitted Northern red sea corals to various tempartures.
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Credit: Maoz Fine
Even under the most optimistic scenarios, most of the coral reef ecosystems on our planet - whether in Australia, the Maldives or the Caribbean - will have disappeared or be in very bad shape by the end of this century. That s because global warming is pushing ocean temperatures above the limit that single-cell algae, which are corals main allies, can withstand. These algae live inside coral tissue for protection and, in exchange, provide corals with essential nutrients produced through photosynthesis. Because the algae contain a variety of pigments and therefore give coral reefs their famous colors, if they are lost the corals turn white, which is known as coral bleaching. But in spite of the real threat caused by global warming, corals in the Red Sea look set to keep their vibrant color. ....

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