coral reef tagged posts

Cuba’s coral reefs are remote but pristine

Cuba reefs

The coral reefs and gin-clear waters off the coast of Cuba offer some of the best diving in the Caribbean and some of the best-preserved reefs on earth. And if travel restrictions on U.S. tourism to Cuba are ever lifted, the remote Peninsula of Guanahacabibes could well become a popular destination for American divers.

The land and marine reserve encompasses some 200 square miles (518 square kilometres) on Cuba’s westernmost tip about 135 miles (217 kilometres) northwest of Havana. It juts into the Caribbean, with protected forests on land, aquamarine waters lapping at white sand beaches and pristine coral beds teeming with a colorful variety of fish just offshore.

In some ways, the peninsula is just as frozen in time as other aspects of life in Cuba, where 50-year-old cars are common and...

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Call for map of Philippines’ reefs

Colourful coral reef

Senator Loren Legarda called for the establishment of a comprehensive map of coral resources nationwide to help leaders and lawmakers arrive at a policy for food security in the Philippines.

An updated comprehensive mapping of the country’s coral reef resources should be done by the departments of agriculture; environment and natural resources; and science and technology, and the Marine Science Institute of the University of the Philippines, said Legarda, chair of the Senate Committee on Environment and Natural Resources. She did not mention the project cost.

“We need coordinated efforts towards the rehabilitation and protection of our reefs, as well as our mangrove forests, seagrass beds, and countless other ecosystems,” Legarda said, adding the maps should indicate the state of health ...

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Great Barrier Reef stands to lose 90% of living coral

Great Barrier Reef

Great barrier reef can decline to less than 10% if ocean warming continues. A new study has revealed that Australia’s Great Barrier Reef could lose 90 percent of its living corals if ocean warming continues. A new study that explores the short- and long-term consequences of environmental changes to the reef shows that live coral coverage on Australia’s Great Barrier Reef could plummet to less than 10% if ocean warming continues.The study aims to project the composition of the future Great Barrier Reef under current and future environmental scenarios.

Researchers at James Cook University found that in the long-term consequences indicate that a moderate warming of 1-2 degrees Celsius can result in coral cover declining to less than 10%, the tipping point for reef growth...

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Great Barrier Reef ‘pretty ugly’ in 40 years

Great Barrier Reef

The Great Barrier Reef is in the worst state it’s been in since records began and it will be ‘pretty ugly’ within 40 years, Australian scientists say. Experts claim the world’s largest reef is facing threats from coastal development, such as a massive port-related dredging project at Abbot Point, the most northerly deepwater coal port of Australia, situated 25 kilometres north of Bowen, Queensland. Farm run-off and poor water quality are also endangering the reef, scientists say.

A Senate committee is investigating how the Australian and Queensland governments have managed the reef, ahead of a UNESCO decision next year about whether to list it as a World Heritage site in danger.

The Australian Coral Reef Society – the oldest organisation in the world that studies reefs – says coral cover...

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When Coral Reefs Thrive, So Does Fish Variety

fish diversity

The fish that live off the Malay Archipelago, between Southeast Asia and Australia, are among the most diverse in the world. Now researchers are reporting that the area owes its diversity to the stability of coral reefs over the past three million years. The reefs provided fish a safe home and the means to diversify and evolve into new species, said Peter F. Cowman, an evolutionary biologist at Yale and an author of the new research, which appears in the journal Science.

“It really drives home the fact that the past shapes the present,” he said.

Using information from underwater sediment, the scientists were able to estimate changes in surface temperatures over time. From that information, they inferred where coral reefs were and how stable they were over time...

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How coral reefs can help us endure climate change

Reef Diving
Sea levels are rising and tropical cyclones are intensifying, which is bad news for about 200 million people who live along Earth’s coasts. If only evolution had spent millions of years fine-tuning some kind of sea creature to build and maintain giant barriers that can soften the ocean’s fury for us.
It did: corals. The reefs these animals build are well-known to scientists and surfers for absorbing the blow of incoming waves and creating big, dramatic breaks. But now, thanks to a new study, we have a fresh appreciation for just how vital these ecological construction crews have become...
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UF research shows coral reefs can be saved

Colourful coral reef

Although some scientists suggest that coral reefs are headed for certain doom, a new study by University of Florida and Caribbean researchers indicates even damaged reefs can recover. In a 13-year study in the Cayman Islands, warm ocean temperatures led to bleaching and infectious disease that reduced live coral cover by more than 40 percent between 1999 and 2004. But seven years later, the amount of live coral on the reefs, the density of young colonies critical to the reefs’ future health, and the overall size of corals all had returned to the 1999 state, the study showed.

Much of the reef surrounding Little Cayman Island is protected, so damage from fishing, anchoring and some other human activities is minimized, said UF researcher Chuck Jacoby, who helped with the study.

“Nevertheless...

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