Currents are strong, which keeps the water nutritious, the reef alive and lures big pelagic fish.
Of course you do not need to be a diver to enjoy the charms of Apo Reef.
Divers and snorkelers can become members of REEF (for free) and enter their own fish survey observations online.
The Gulf Stream draws ships into her path, where Bermuda's shallow reef effortlessly devours them.
The USS Guardian also struck the reef south-east of Palawan island on 17 January.
Sharks, rays and seahorses at Newquay's Blue Reef Aquarium are being counted in the week-long survey.
Labour councillor Ben Grower has long called for the reef to be dug up.
Patch reef: small colonies of corals, sometimes less than 10 m (33 ft) in diameter.
Artificial reef: a man-made marine habitat constructed for the purpose of improving fisheries.
Not the great marine biologist himself, unfortunately, but his definitive study of reef-building corals of Australia.
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That process is damaging the coral, and warmer waters are also killing parts of the reef.
Clive Wilkinson, coordinator for the Global Coral Reef Monitoring Network, lives in Townsville, Queensland.
However, the Tubbataha reef lies within the Philippine's territory, and is not considered a disputed area.
The 12-man vessel ran aground Tubbataha Reef, a Unesco World Heritage site, late on Monday.
Now it's an artificial reef, one that Scuba Diving magazine says is a must for divers.
The family-owned Coral Reef Club comprises 88 luxury rooms set amid 12 acres of landscaped grounds.
On that note, Townsville boasts its own aquarium highlighting the treasures of the Reef.
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So you have not even a reef until you're like within 200 feet of the island.
When the three-year project is completed, reef data will have been boosted considerably, he says.
The coral reef system stretches for 2, 600 kilometers and can be seen from outer space.
"We focus a lot on marine protected areas, " said Laddie Akins, the executive director of REEF.
The IMAX film "Coral Reef Adventure" based their shooting locations on Reefs at Risk information.
Communicating with the sensors is a challenge, particularly for those sensors located out on the reef.
The discovery of a reef of high-quality emeralds several miles long bears this optimism out.
Rocks have been used for the artificial reef as lobsters like to live in stony crevices.
Although some parts of the reef had grown, the overall trend was sharply downwards.
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Sarah Elizabeth Hillware, and executive chef, Dwayne Hickman of the Reef restaurant in Dupont Circle.
Bournemouth Borough Council has advised people not to use the reef while it undergoes the maintenance.
Every place you look, from corals in great barrier reef, to polar bear tracks.
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Catching reef fish with a net is difficult, and increasingly so as populations decline.
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