The terrain is low-lying and sandy: a coral island surrounded by a narrow fringing reef with a depressed central area devoid of a lagoon with its highest point being above sea level.

A well-developed coral reef that encircles much of the island ensures protection for ships and a habitat for fish.

A collection of crocheted hyperbolic planes, in imitation of a coral reef.

A hyperbolic model of a coral reef has also been constructed for environmental purposes

The coral reef surrounding the seaward side of the atoll is generally broad, flat, and shallow at about below mean sea level in most locations and varying from 300 to 650 feet ( 100 to 200 m ) in width.

However, a mulatto who escaped the destruction of Syn's previous ship stowed away in Clegg's ship and accused him before the crew ; Clegg quelled the potential mutiny by having the mulatto's tongue cut out, marooning him on a coral reef and violently killing Yellow Pete, the ship's Chinese cook, who represented the crew in their wish to rescue the mulatto.

It is surrounded by coral beaches and a fringing reef and encloses a mangrove lagoon of around 9 km².

Biodiversity of a coral reef.

Thus the distribution of Symbiodinium on coral reefs and its role in coral bleaching presents one of the most complex and interesting current problems in reef ecology.

* 2009 – The United States Navy guided missile cruiser runs aground off Oahu, Hawaii, damaging the ship as well as a coral reef.

They form part of a coral reef and lagoon.

In 2005 the Rainbow Warrior II ran aground on and damaged the Tubbataha Reef in the Philippines while inspecting the reef for coral bleaching.

Foreign tourists are attracted to Honduras by the Mayan ruins in Copán and coral reef skindiving off the Islas de la Bahía ( Bay Islands ).

The terrain is low-lying and sandy: a coral island surrounded by a narrow fringing reef with a slightly raised central area.

An atoll is an island formed from a coral reef that has grown on an eroded and submerged volcanic island.

Behind the beaches is a flat raised plain of uplifted coral reef.

The low-lying coral island has long been noted as hard to sight from small ships and is surrounded by a narrow fringing reef.

The atoll, which is located on the coral reef platform, comprises four islands.

Map of the islands of Johnston Atoll, showing rim of coral reef.

The lush primeval forest which once covered the eastern coastal plain, where the Amerindians built their first settlements during the Aceramic period, is gone forever, and so is a large portion of the ecosystem surrounding the coral reef just offshore.

In December 2000, most of Palmyra Atoll was bought by The Nature Conservancy for coral reef conservation and research.

* Natural resources: fishery, coral reef, possible oil and gas nearby

Of these 700 species, more than 80 % are coral reef associated, and directly or indirectly depend on the coral reef for their survival.

Diego Garcia lies in the Chagos Archipelago at the southernmost tip of the Chagos-Laccadive Ridge –&# 32 ; a vast submarine range in the Indian Ocean, topped by a long chain of coral reefs, atolls, and islands comprising Lakshadweep, Maldives, and the Chagos Archipelago.

Except on the west coast, where the white sandy beach is more extensive than elsewhere, a strip of dark gray coral rubble, forming a series of low ridges parallel to the coast, lies within the narrow beach, extending inward to the island rim.

Rockall lies near the Darwin Mounds, deep water coral mounds about 185 km ( 100 nmi or 115 mi ) north-west of Cape Wrath.

There is a shallow opening around 6 m deep, known as ' the saddle ', opening out to the sea, and a 26 m long tunnel, known as the arch, the top of which lies at a depth of 56 m. The hole itself and the surrounding area has an abundance of coral and reef fish.

This small atoll lies less than 10 km south of the southwestern rim of the Great Chagos Bank submerged coral reef.

It was ordered to be cut loose, and lies in Great Harbour to this day, with its chain wrapped around the same coral head that trapped it a century and a half ago.

It has an area of 6. 8 km² and lies 15 km ( 8 nautical miles ) west of Tungkang and it is Taiwan's only large coral island.

Off the coast of Unawatuna, beneath the Indian Ocean lies a number of coral reefs, shipwrecks, and a great variety of fish and turtles.

Pulley Ridge is a coral reef off the coast of southwestern Florida, United States The reef lies 100 miles west of the Tortugas Ecological Reserve and stretches north about 60 miles.

The island lies in the Ste Anne Marine National Park and is surrounded by a coral reef.

Magellan deployed 49 armored men, less than half his crew, with crossbows and guns, but could not anchor near land because the island is surrounded by shallow coral bottoms and thus unsuitable for the Spanish galleons to get close to shore.

Trinidad, which is further south, has no significant coral because of low salinity and high silt content, the result of its position close to the mouth of Venezuela's Orinoco River.

It has been variously interpreted as a jellyfish, coral, polychaete worm, turbellarian, mushroom, xenophyophoran protist, sea anemone, lichen, and even a close ancestor of the chordates.

Wrasses inhabit the Atlantic, Indian, and Pacific Oceans, usually in shallow water habitats such as coral reefs and rocky shores where they live close to the substrate.

Part of the sedimentary rock deposited in these areas consists of coral reefs that formed close to the surface of seas during the Paleozoic Era.

Its lagoon has no islands and is relatively open with few shoals in its centre, but having mazes of coral patches close to the NW and NE corners of its encircling reefs in 7 to 10 fathoms ( 13 to 18 m ) of water.

Requests from users are directed to a relatively close node, which then finds the file on the coral DSHT and forwards it to the user.

It is located at the centre of Alofi Bay on the west coast of the island, close to the only break in the coral reef that surrounds Niue.

A close look at almost any intertidal rocky shore or coral reef will reveal an abundance of pink to pinkish-grey patches, splashed as though by a mad painter over rock surfaces.

Marine areas close to highly populated coastal cities also face degradation of their coral reefs or other marine habitat.

It has three beautiful beaches with coral reefs close to the shore.

The main leisure activities on the island are watersports such as snorkeling and diving-not surprising since the area was designated a Marine Park in 1993 and numerous coral reefs are close to hand.

Many marine tropical fish, particularly those of interest to fishkeepers, are the fish which live amongst or in close relation to coral reefs.

To restore the fort as close to the original as possible, coral stones which were hauled from under the sea along Cebu coastal towns were utilized.

The Ko Samet area is a popular for divers and snorkelers due its close proximity to Bangkok and abundance of clear water, colorful coral and diversity of marine life such as: turtles, tiger sharks and manta rays.

The trump card, however, remains the world class diving: miles and miles of coral reefs are close to shore and the island is close to a common migration route for the Humpback whale.

All these islands have been built up by corals and have fringing coral reefs very close to their shores.