Reef

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In nautical terminology, a reef is a rock, sandbar, or other feature lying beneath the surface of the water (six fathoms or less at low water).

Many reefs result from abiotic processes—deposition of sand, wave erosion planning down rock outcrops, and other natural processes—but the best-known reefs are the coral reefs of tropical waters developed through biotic processes dominated by corals and calcareous algae. Artificial reefs such as shipwrecks are sometimes created to enhance physical complexity on generally featureless sand bottoms in order to attract a diverse assemblage of organisms, especially fish.

For more information about Reef, read the full article at Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.


News tagged with reef

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Mantis shrimps could show us the way to a better DVD

Mantis shrimps could show us the way to a better DVD

Physics / Optics & Photonics

created Oct 25, 2009 | popularity 4.9 / 5 (19) | comments 5

(PhysOrg.com) -- The remarkable eyes of a marine crustacean could inspire the next generation of DVD and CD players, according to a new study from the University of Bristol published today in Nature Photonics.


Fish with attitude: Some like it hot

Biology / Plants & Animals

created Dec 03, 2009 | popularity not rated yet | comments 0

Coral reef fish can undergo a personality change in warmer water, according to an intriguing new study suggesting that climate change may make some species more aggressive.


New NASA Image Shows Extent of Station Fire Burn

New NASA Image Shows Extent of Station Fire Burn

Space & Earth / Space Exploration

created Sep 09, 2009 | popularity 4.7 / 5 (3) | comments 0

On September 6, 2009, the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) instrument on NASA's Terra satellite captured this simulated natural color image of the Station fire, burning ...


Coral skeleton

Studies shed light on collapse of coral reefs (w/Video)

Space & Earth / Environment

created May 28, 2009 | popularity 3.7 / 5 (3) | comments 0

An explosion of knowledge has been made in the last few years about the basic biology of corals, researchers say in a new report, helping to explain why coral reefs around the world are collapsing and what ...


Study reveals 'sobering' decline of Caribbean's big fish, fisheries

Study reveals 'sobering' decline of Caribbean's big fish, fisheries

Biology / Ecology

created May 06, 2009 | popularity not rated yet | comments 0

Sharks, barracuda and other large predatory fishes disappear on Caribbean coral reefs as human populations rise, endangering the region's marine food web and ultimately its reefs and fisheries, according to ...


Large sponges may be reattached to coral reefs

Biology / Ecology

created Apr 27, 2009 | popularity 4.5 / 5 (2) | comments 0

April 27, 2009 - A new study appearing in Restoration Ecology describes a novel technique for reattaching large sponges that have been dislodged from coral reefs. The findings could be generally applied to the restoration of oth ...


Coral Reefs

Reef boom beats doom

Space & Earth / Environment

created Apr 21, 2009 | popularity 4.3 / 5 (12) | comments 4

(PhysOrg.com) -- Marine scientists say they are astonished at the spectacular recovery of certain coral reefs in Australia's Great Barrier Reef Marine Park from a devastating coral bleaching event in 2006.


Scientists invent first technique for producing promising anti-leukemia agent

Chemistry / Biochemistry

created Apr 17, 2009 | popularity 5 / 5 (5) | comments 1

Kapakahines, marine-derived natural products isolated from a South Pacific sponge in trace quantities, have shown anti-leukemia potential, but studies have been all but stalled by kapakahines' lack of availability.


Saving the creatures of the deep: A federal government plan aims to protect Florida's reefs before a precious ecosystem

Space & Earth / Environment

created Mar 05, 2009 | popularity 5 / 5 (1) | comments 5

A few miles from the southeast Florida coast, at a depth of crushing pressure and frigid temperatures, lies an eerie world of snowy coral, undiscovered forms of life and rock towers thrusting through ink-dark water.


Trophy Fish Caught on Key West Charter Boats

Historical photographs expose decline in Florida's reef fish, study finds

Biology /

created Feb 17, 2009 | popularity 4.1 / 5 (9) | comments 5

A unique study by a scientist at Scripps Institution of Oceanography at UC San Diego has provided fresh evidence of fishing's impact on marine ecosystems. Scripps Oceanography graduate student researcher Loren ...


Dr. Robert N. Ginsburg

Isopora or isn't it? Mistaken identity leads researchers to two new extinct species of coral

Space & Earth / Earth Sciences

created Dec 08, 2008 | popularity 3 / 5 (1) | comments 0

What began as an homage to achievement in the field of coral reef geology has evolved into the discovery of an unexpected link between corals of the Pacific and Atlantic. Dr. Ann F. Budd from the University ...


Rising CO2 'will hit reefs harder'

Space & Earth / Environment

created Oct 27, 2008 | popularity 3.1 / 5 (18) | comments 6

(PhysOrg.com) -- Rising CO2 levels in the world's oceans could deliver a disastrous blow to the ability of coral reefs to withstand climate change.


Scientists discover new reefs teeming with marine life in Brazil

Biology /

created Jul 08, 2008 | popularity 4 / 5 (15) | comments 2

Scientists announced today the discovery of reef structures they believe doubles the size of the Southern Atlantic Ocean's largest and richest reef system, the Abrolhos Bank, off the southern coast of Brazil's Bahia state. ...


NOAA report states half of US coral reefs in 'poor' or 'fair' condition

Space & Earth / Environment

created Jul 07, 2008 | popularity 2.6 / 5 (7) | comments 1

Nearly half of U.S. coral reef ecosystems are considered to be in "poor" or "fair" condition according to a new NOAA analysis of the health of coral reefs under US jurisdiction. The NOAA report says that the nation's coral ...


Calm before the spawn: Climate change and coral spawning

Space & Earth / Environment

created Nov 04, 2009 | popularity 1 / 5 (4) | comments 2

What's the point of setting up marine reserves to protect coral reefs from pollution, ship groundings and overfishing if climate change could cause far more damage? A study published this week in London in Proceedings of ...