Featured Research

from universities, journals, and other organizations

Eilat's corals stand better chance of resilience than other sites

Date:
September 29, 2013
Source:
Hebrew University of Jerusalem
Summary:
Israel’s southern Red Sea resort of Eilat, one of whose prime attractions is its colorful and multi-shaped underwater coral reefs, may have a clear advantage in the future over rival coral-viewing sites around the world, scientists have found.

Colorful coral in the Gulf of Eilat.
Credit: Amatzia Genin

Israel's southern Red Sea resort of Eilat, one of whose prime attractions is its colorful and multi-shaped underwater coral reefs, may have a clear advantage in the future over rival coral-viewing sites around the world, scientists at the Hebrew University of Jerusalem and Bar-Ilan University have found.

Coral reefs, earth's richest and most diverse ecosystem, are deteriorating rapidly. One of the most devastating causes for that deterioration is coral bleaching, which typically occurs when seawater temperatures exceed the local summer maximum by one-half to one and half degrees Celsius. At those higher temperatures, the coral's symbiotic algae are lost, leading to the coral's bleaching and eventually its death.

But, while the frequency of coral bleaching is globally increasing, no bleaching event has been observed in the Gulf of Eilat/Aqaba (Eilat sits at the northern end of the gulf), even when nominally bleaching conditions prevail.

The Israeli scientists explain the enigmatic lack of bleaching in the Gulf by the existence of a "warm-water barrier" at the southern Red Sea, allowing only heat-tolerant genotypes of corals to enter the Red Sea from the Gulf of Aden. This occurred following the disappearance of corals from the Red Sea during the last glacial period, some 15,000 years ago. The scientists predict that no bleaching is likely to occur in the Gulf of Eilat/Aqaba in the next 100 years, making it a unique refuge for coral reefs in the world's warming oceans.

The findings of the Israeli researchers, entitled "A Coral Reef Refuge in the Red Sea," was published on Sept. 23 in the journal Global Change Biology." The paper is the outcome of a joint study by Prof. Amatzia Genin of the Alexander Silberman Institute of Life Sciences at the Hebrew University; Dr. Hezi Gildor of the The Fredy & Nadine Herrmann Institute of Earth Sciences at the Hebrew University; and Dr. Maoz Fine of the Mina and Everard Goodman Faculty of Life Sciences at Bar-Ilan University. The work was carried out at the Interuniversity Institute for Marine Sciences in Eilat.


Story Source:

The above story is based on materials provided by Hebrew University of Jerusalem. Note: Materials may be edited for content and length.


Journal Reference:

  1. Maoz Fine, Hezi Gildor, Amatzia Genin. A coral reef refuge in the Red Sea. Global Change Biology, 2013; DOI: 10.1111/gcb.12356

Cite This Page:

Hebrew University of Jerusalem. "Eilat's corals stand better chance of resilience than other sites." ScienceDaily. ScienceDaily, 29 September 2013. <www.sciencedaily.com/releases/2013/09/130929142700.htm>.
Hebrew University of Jerusalem. (2013, September 29). Eilat's corals stand better chance of resilience than other sites. ScienceDaily. Retrieved April 25, 2014 from www.sciencedaily.com/releases/2013/09/130929142700.htm
Hebrew University of Jerusalem. "Eilat's corals stand better chance of resilience than other sites." ScienceDaily. www.sciencedaily.com/releases/2013/09/130929142700.htm (accessed April 25, 2014).

Share This



More Earth & Climate News

Friday, April 25, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Deadly Fungus Killing Bats, Spreading in US

Deadly Fungus Killing Bats, Spreading in US

AP (Apr. 24, 2014) A disease that has killed more than six million cave-dwelling bats in the United States is on the move and wildlife biologists are worried. White Nose Syndrome, discovered in New York in 2006, has now spread to 25 states. (April 24) Video provided by AP
Powered by NewsLook.com
New Pictures of Ship That Sank in 1888

New Pictures of Ship That Sank in 1888

AP (Apr. 24, 2014) Federal researchers have released new images of the City of Chester, a steamship that sank in San Francisco Bay in 1888. Researchers recently found the shipwreck while mapping shipping routes. (April 24) Video provided by AP
Powered by NewsLook.com
Risk of Asteroid Hitting Earth Higher Than Thought, Study Shows

Risk of Asteroid Hitting Earth Higher Than Thought, Study Shows

Reuters - US Online Video (Apr. 23, 2014) A group of space explorers say the chance of a city-obliterating asteroid striking Earth is higher than scientists previously believed. Deborah Gembara reports. Video provided by Reuters
Powered by NewsLook.com
UN Joint Mission Starts Removing Landmines in Cyprus

UN Joint Mission Starts Removing Landmines in Cyprus

AFP (Apr. 23, 2014) The UN mission in Cyprus (UNFICYP) led a mine clearance demonstration on Wednesday in the UN-controlled buffer zone where demining operations are being conducted near the Cypriot village of Mammari. Duration: 01:00 Video provided by AFP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins