Coral-reefs Sentence Examples

The Niagara limestone contains the oldest known coral reefs of the continent.

Of the Polynesian Islands, the Hawaiian chain presents the type of a volcanic group through which coral reefs are not equally distributed.

For the much debated question as to the conditions under which atolls and reefs are formed, see Coral Reefs.

Its coast, unlike that of the other islands of the archipelago, has few coral reefs.

Curacao consists of eruptive rocks, chiefly diorite and diabase, and is surrounded by coral reefs.

Few seas are more prolific in fish than the Persian Gulf and the Gulf of Oman; the great proportion of known species are edible and many have a commercial value for the isinglass or oil Shelly conglomerates and dead coral reefs of the littoral; red sandhills of the coast of Trucial Oman; alluvium of Turkish Iraq; river and lake deposits of Oman and the interior of Persia.

The surrounding seas contain great numbers of fish; the coral reefs abound with a great variety of molluscs; and there are numerous land-shells.

The greater elevations are for the most part formed of limestones, except in the south, where they are largely volcanic. The coasts of the Gulf of Akaba are steep, with numerous coral reefs on both sides.

Elsewhere the surface movements at least are controlled by the prevailing winds, which give rise in places to complex "transverse" currents, and near the coast are modified by the channels enclosed by the coral reefs.

Towards the centre, the Maldive, Chagos and Cocos groups are of characteristic coral formation, and coral reefs occur on most parts of the tropical coasts.

The structure of coral animals (sometimes erroneously termed "coral insects") is dealt with in the articles cited above; for the distribution and formation of reefs see Coral-Reefs.

The object of their visits was the investigation of the fauna and flora of the atoll, more especially of the formation of the coral reefs.

The coasts are in some parts precipitous; in others the mountains recede inland, and the coast is flat and bordered by coral reefs.

Along two-thirds of its eastern side the coast is almost a straight line, without any inlet, Tamatave, the chief port on this side of the island, being only protected by coral reefs.

The coral reefs fringing the coast are here broken by a straight channel with deep water giving access to the harbour, which consists of a series of natural channels and basins.

They are often seen in and around the deep, cold-water coral reefs west of Norway and Britain.

By 1997 27% of the world's coral reefs had been lost.

Additionally, most of the islands are made up of surrounding coral reefs and lagoons, just superb for snorkeling and diving activities.

Renowned for having the most exquisite coral reefs in the world and a refuge to rare marine life.

My guide - Itay - escorted me around stunning coral reefs teeming with tropical fish that glimmered brightly in the clear blue water.

If you enjoy scuba diving or snorkeling, Fiji travel provides plenty of opportunity to do so and is renowned for its coral reefs.

Squid triggerfish tangs passed us on great coral reefs.

Coral fishing, which fell off between 1889 and 1892 on account of the temporary closing of the Sciacca coral reefs has greatly decreased since 1884, when the fisheries produced 643 tons,-whereas in 1902 they only produced 225 tons.

Finally you arrive in Aqaba, on the shores of the Red Sea, and have an opportunity to snorkel over colorful coral reefs.

As the ocean continues to become more acidic because of carbon dioxide emissions, coral reefs are becoming decimated.

If the water temperature increases by as little as three to four degrees, scientists estimate that as much as ninety-seven percent of the world's coral reefs will be wiped out.

It offers white sand beaches, clean water and coral reefs.

The black, blue and pale green colors will blend beautifully while you are swimming among coral reefs or catching a wave.

This beautiful towel elegantly captures two dolphins swimming in a calm sea of blue, high above an abundance of colorful coral reefs and sea flowers.

Scientists know that damaged coral reefs due to pollution or climate changes spell trouble for the local marine population.

Removing major portions of coral reefs to make supplements would end up hurting marine life more than it would help people.

The Great Barrier Reef forms the prominent feature off the north-east coast of Australia; its extent from north to south is 1200 m., and it is therefore the greatest of all coral reefs.

The Squamipennes, or scaly-finned fishes, are principally found in the seas of southern Asia, and especially near coral reefs.

They contain corals, but are not coral reefs.

The coral reefs are of especial interest from their bearing on the general question of the formation of coral reefs.

It is not at all certain that the masses on which coral reefs are built consist entirely of the remains of the skeletons of reef-forming organisms and it is probable that chemically precipitated carbonate of lime predominates.

Interesting speculations as to the periods of origin of great coral reefs have been made by Wayland Vaughan, Andrews and Daly and Humphreys.

These new structures would rest uncomfortably upon eroded formations and this, Wayland Vaughan points out, is what we actually observe in the case of living and fossil coral reefs.

In so far as it depends on solution of calcareous rock the Semper-Murray theory of coral reefs is unsatisfactory.

They are quite distinct in their formation from the coral reefs of the same coast.

The Kevori grits, and the raised coral reefs are upper Cainozoic, and perhaps Pleistocene; but the reefs occur inland up to a height of 2000 ft.

They are apparently volcanic. Coral reefs lie off the coasts and render them difficult of access.

As to the distribution of coral reefs within the Pacific area, in Micronesia the northern Marianas (volcanic) are without reefs, which, however, are well developed in the south.