Coral reef

Coral reef, Outcrop of rock in the sea formed by the growth and deposit of stony coral skeletons.

Coral reef image

A coral reef is an underwater ecosystem characterized by reef-building corals. Reefs are formed of colonies of coral polyps held together by calcium carbonate. Most coral reefs are built from stony corals, whose polyps cluster in groups. Coral belongs to the class Anthozoa in the animal phylum Cnidaria, which includes sea anemones and jellyfish. Unlike sea anemones, corals secrete hard carbonate exoskeletons that support and protect the coral.

Coral reefs in India
2 days ago

Coral reefs in India ... Coral reefs in India are one of the most ancient and dynamic ecosystems of India. The coral reefs not only provide a sanctuary to a myriad of marine life...

Coral bleaching
3 weeks ago

Coral bleaching ... crucial for the health of the coral and the reef. The algae provides up to 90 percent of the coral's energy. Bleached corals continue to live but begin to...

1 week ago

Atoll ... known as a coral atoll, is a ring-shaped coral reef, including a coral rim that encircles a lagoon partially or completely. There may be coral islands or...

Coral reef organizations
3 months ago

Coral reef organizations ... Conservation Society of Pohnpei Coral Cay Conservation Coral Reef Care Coral Reef Alliance (CORAL) Coral Reef Alliance (CORAL) Coral Reef Targeted Research and...

3 weeks ago

Coral ... polyps. Coral species include the important reef builders that inhabit tropical oceans and secrete calcium carbonate to form a hard skeleton. A coral "group"...

Great Barrier Reef
3 weeks ago

Great Barrier Reef ... The Great Barrier Reef is the world's largest coral reef system composed of over 2,900 individual reefs and 900 islands stretching for over 2,300 kilometres...

Coral Sea Islands
2 weeks ago

Coral Sea Islands ... Coral Sea Islands Territory is an external territory of Australia which comprises a group of small and mostly uninhabited tropical islands and reefs in...

Coral reef protection
2 days ago

Coral reef protection ... Coral reef protection is the process of modifying human activities to avoid damage to healthy coral reefs and to help damaged reefs recover. The key strategies...

List of reefs
4 months ago

List of reefs ... notable reefs. Fringing reef Recreational dive sites Recreational diving Southeast Asian coral reefs The Structure and Distribution of Coral Reefs Vidal...

African coral reefs
2 days ago

African coral reefs ... African coral reefs are the coral reefs which are present in Africa. Most are found along the eastern and southern coasts of Africa. The east coast corals extend...

1 week ago
Resilience of coral reefs
3 weeks ago
Coral reefs of Kiribati
1 month ago
Coral island
2 days ago
Coral Sea
3 weeks ago
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