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Latest Coral reefs Stories

2012-10-09 22:17:15

Researchers use mapping technique on Caribbean coral Marine diseases are killing coral populations all over the world, threatening the livelihoods of millions of people who depend on reefs for food and protection from storms. Are these diseases new and unprecedented infections, or do they erupt from the stresses of environmental change? Florida Institute of Technology biologist Robert van Woesik and his former student Erinn Muller–now a researcher at the Mote Marine Lab in...

Great Barrier Reef Is Shrinking
2012-10-02 07:58:43

April Flowers for redOrbit.com - Your Universe Online The Great Barrier Reef in Australia is the world's largest coral reef, and the only living thing on Earth that is visible from space. The Great Barrier Reef is approximately 3000 kilometers long and up to 65 kilometers wide in some places. According to new research from the Australian Institute of Marine Science (AIMS ), the Great Barrier Reef has lost half of its coral cover in the last 27 years. The research team attributes this...

Coral Hotspots Found In Deepwater Canyons
2012-09-28 04:33:26

Alan McStravick for redOrbit.com - Your Universe Online When most people think of coral reefs, they are transported to temperate waters in a tropical locale. To even locate a coral ecosystem in the cold waters of the mid and north Atlantic would be a difficult endeavor. Or, at least, one would have thought. A recent exploration of the continental shelf and slope of the Northeastern United States has revealed coral hotspots. These are areas that have an abundance of sea life existing in...

Great Barrier Reef Erosion Raises Conservation Questions
2012-09-24 14:23:33

Brett Smith for redOrbit.com - Your Universe Online As anyone who follows politics knows, public policy is a process that can take years or decades to hammer out, especially when it comes to certain issues. Unfortunately, the forces of nature are always in a state of flux, which can make it difficult to develop policy around them. With this in mind, Australian researchers set out to study the effects of climate change and temperature dynamics around the Great Barrier Reef (GBR) and its...

DNA Analysis Can Help In Classifying Single-celled Algae
2012-09-20 12:28:58

For nearly 260 years -- since Carl Linnaeus developed his system of naming plants and animals -- researchers classified species based on visual attributes like color, shape and size. In the past few decades, researchers found that sequencing DNA can more accurately identify species. A group of single-celled algae -- Symbiodinum -- that live inside corals and are critical to their survival -- are only now being separated into species using DNA analysis, according to biologists....

Coral Algae Overgrowth Endangers Whole Ecosystems
2012-09-20 11:55:50

April Flowers for redOrbit.com - Your Universe Online Overfishing and nitrate pollution can destroy coral reefs by allowing an overgrowth of algae that brings with it unwanted pathogens, chokes off oxygen and disrupts helpful bacteria. These are the findings of a new study out of the Oregon State University, published recently in PLoS One. Large algal species, or "macroalgae," are big enough to essentially smother corals. These macralgae grow at accelerated rates when sewage waste...

Coral Reefs Will Suffer If Climate Change Goes Unchecked
2012-09-17 12:17:18

Brett Smith for redOrbit.com - Your Universe Online Time may be running out for the world´s coral reefs which could be severely victimized by rising global temperatures and carbon dioxide levels, according to a new report in Nature Climate Change. "Our findings show that under current assumptions regarding thermal sensitivity, coral reefs might no longer be prominent coastal ecosystems if global mean temperatures actually exceed 2 degrees Celsius (3.6 Fahrenheit) above the...

Coral Reef Fish Connections Are Much More Complex
2012-09-04 04:00:27

April Flowers for redOrbit.com - Your Universe Online Ocean scientists have known for a long time that juvenile coral reef fishes use coastal seagrass and mangrove habitats as nurseries, before they move into the coral reefs as adults. According to a study published in Proceedings of the National Academy of Sciences, the fishes' movements, and the connections between different tropical habitats, are much more complex than previously realized. Despite several studies that have...

New Model Used To Find Where Corals Are Most Likely To Survive Climate Change
2012-08-31 11:51:43

Marine conservationists from the Wildlife Conservation Society working with other coral reef experts have identified heat-tolerant coral species living in locations with continuous background temperature variability as those having the best chance of surviving climate change, according to a new simplified method for measuring coral reef resilience. Therefore, coral reefs with these characteristics should receive immediate attention for conserving this highly threatened ecosystem, according...


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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ramage
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