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Latest Coral reefs Stories

Israeli Scientists Discover Why Soft Corals Pulsate
2013-04-23 14:17:24

The Hebrew University of Jerusalem [ Watch the Video Pulsating Coral In The Gulf Of Eilat ] Scientists from the Hebrew University of Jerusalem and the Technion-Israel Institute of Technology have discovered why Heteroxenia corals pulsate. Their work, which resolves an old scientific mystery, appears in the current issue of PNAS (Proceedings of the National Academy of Sciences in the US). One of the most fascinating and spectacular sights in the coral reef of Eilat is the perpetual...

Coral Reefs Also Under Threat From Air Pollution
2013-04-08 04:30:56

redOrbit Staff & Wire Reports - Your Universe Online Fine particles in the air resulting from burning coal or volcanic eruptions can negatively affect coral growth, a team of climate scientists and coral ecologists from the UK, Australia and Panama has discovered. The study, which appears in this week´s edition of the journal Nature Geoscience, found that coral reefs respond to changes in the concentration of atmospheric pollution. Those particulates can shade the corals from...

Sustainable Fishing Practices Reap Local Rewards
2013-03-28 16:28:27

Cell Press Communities that act locally to limit their fish catches will reap the rewards of their action, as will their neighbors. That's the conclusion of a study reported on March 28 in the Cell Press journal Current Biology of the highly sought-after fish known as squaretail coral grouper living in five community-owned reef systems in Papua New Guinea. "We found that many larvae that were produced by the managed adults return to that same fish population, which means that the same...

Microborers Represent New Threat To Earth’s Coral Reefs
2013-03-18 11:42:49

Brett Smith for redOrbit.com - Your Universe Online Previous studies have shown that warming oceans and ocean acidification threaten to destroy the ocean´s coral reefs. Now, a new study from Australian researchers published in the journal Global Change Biology suggests that yet another threat could decimate these delicate ecosystems. “Our research shows that when seawater is both acidic and warm — which is predicted to happen under future climate scenarios — coral...

2013-02-27 10:48:27

Using a world-first scientific discovery, Australian researchers are developing a stress-test for coral, to measure how coral reefs are being impacted by pressures from climate change and human activity. The scientists have found hemoglobin genes in the microalgae which live symbiotically with coral, which may provide a readout on how stressed a particular coral is — and how likely it is to bleach and die. Coral bleaching occurs when the symbiotic algae abandon the coral due to...

Increase In Coral Reef Bleaching Attributed To Climate Change
2013-02-25 19:26:09

Michael Harper for redOrbit.com — Your Universe Online Rising temperatures associated with climate change have already been shown to have an effect on a wide range of ecosystems and the creatures that reside within. Recent studies have now added coral reefs to the list of ecosystems that may be damaged as a result of climate change. Judging from new maps and models, the rising sea temperatures, which accompany climate change, could result in more frequent coral bleaching events,...

Manmade Activities Behind Caribbean Coral Die-Off
2013-02-15 10:42:20

April Flowers for redOrbit.com - Your Universe Online A new study, led by the University of Georgia, solves the mystery of the dying Caribbean coral. Plunk down a wastewater treatment plant anywhere along a Caribbean coast and watch the coral reefs nearby start dying, by a means unknown to science. "You'd have all the makings of a great mystery novel," says ecologist James Porter of the University of Georgia. Unlike a novel, however, this story is true. "Between 1996 and 2012,...

Picky Eaters Keep Endangered Coral Reefs Clean
2013-02-14 06:19:23

[ Watch the Video: Picky Eater Fish Endanger Coral Reefs ] Peter Suciu for redOrbit.com — Your Universe Online Few pet owners would expect their dog or cat to clean up the house, and anyone who has ever camped in places such as Yellowstone Park knows that bears can visit and will leave a campsite in worse shape than they found it. Fish on the other hand could actually be doing some good in cleaning up coral reefs. A recent study conducted in the Fiji Islands found that four...

Investigating Coral Speciation And Adaptation
2013-02-07 19:34:01

Brett Smith for redOrbit.com — Your Universe Online When Darwin first formed his theory of evolution, he noted how physical isolation due to geographic barriers could result in the development of specialized adaptations. These novel adaptations were then selected and passed on to future generations. Eventually a new species would evolve. While many researchers are focused on how physical barriers and isolation can lead to new species on land, a pair of LSU biologists are more...


Latest Coral reefs Reference Libraries

Crown Of Thorns Starfish, Acanthaster planci
2013-11-11 10:54:41

The crown-of-thorns starfish (Acanthaster planci) is a species of starfish that is classified within the Acanthasteridae family. This species has a large range that extends from the Red Sea to the African coasts in the east and from the Indian Ocean to the western coasts of Central America. It prefers a habitat in coral reefs, which can be harmed if population numbers are too high. Damage occurs when filamentous algae covers bare skeletons of coral and the starfish move in to feed, stripping...

Coral Reef
2013-04-20 15:49:21

Coral reefs are submerged structures consisting of calcium carbonate secreted by corals. Coral reefs are colonies of small animals found in marine waters that enclose few nutrients. The majority of coral reefs are constructed from stony corals, which then consist of polyps that come together in groups. The polyps are like small sea anemones, to which they are very closely related. Unlike the sea anemones, coral polyps secrete hard carbonate exoskeletons which provide support and protections...

OLYMPUS DIGITAL CAMERA
2012-04-03 20:41:16

Knotted Fan Coral, (Melithaea ochracea), is a species of colonial soft coral that is found in tree-like fans on shallow reefs in the South China Sea between Taiwan and Indonesia, including Singapore and Malaysia. In Taiwan, it is the most widespread coral in its family Gorgonacea. It is found on the higher parts of reef fronts where its numerous small polyps can feed at water flow rates varying from 1.6 to 16 inches per second. This species usually grow to about 8 inches in length, with...

800px-Leaf_plate_montipora.gk
2012-04-03 18:56:15

Leaf Plate Montipora, (Montipora capricornis), also known as Vase Coral, Cap Coral, or simply Montipora, is a species of stony coral found in the Indian and Pacific oceans. It is also found in reefs in the Red Sea. It usually inhabits the top half of the reef where photosynthesis can occur. It branches out from the foundation into an area with adequate sunlight. This species forms flat, plating colonies. The colonies expand by adding to their foundations and further spreading out....

800px-Capnella_sp
2012-04-03 17:35:45

Nephtheidae is a family of soft corals known as carnation corals, tree corals or colt soft corals. These corals are very striking and show a wide range of rich colors including red, pink, yellow and purple. These corals are mainly tree-like in that they branch out and have little knobs on the end of their rubbery branches. Another name given these animals are broccoli corals, due to the fact that their polyps retract in the daytime, giving them the resemblance of the vegetable. The polyps...

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Word of the Day
tesla
  • The unit of magnetic flux density in the International System of Units, equal to the magnitude of the magnetic field vector necessary to produce a force of one newton on a charge of one coulomb moving perpendicular to the direction of the magnetic field vector with a velocity of one meter per second. It is equivalent to one weber per square meter.
This word is named for Nikola Tesla, the inventor, engineer, and futurist.