Coral reefs are diverse underwater ecosystems held together by calcium
carbonate structures secreted by corals. Coral reefs are built by colonies of tiny
Coral reefs contain colorful and amazing animals, but are threatened by human
activities. Images, videos, and facts from around the world.
Coral reefs are some of the most diverse ecosystems in the world, housing tens
of thousands of marine species. About one-third of all marine fish species live ...
The National Oceanic and Atmospheric Administration's (NOAA) Coral Reef
Conservation Program supports effective management and sound science to ...
LOCATION: Coral reefs are generally found in clear, tropical oceans. Coral reefs
form in waters from the surface to about 150 feet (45 meters) deep because ...
Conservation of ocean environments, seas, coasts, the coral reefs and their
magnicient diversity of marine animals and plants.
Coral reefs are the foundation of many marine ecosystems—and they are in
Coral reefs are the most diverse and beautiful of all marine habitats. Large wave
resistant structures have accumulated from the slow growth of corals.
Oct 8, 2013 ... Coral reefs are large underwater structures composed of the skeletons of coral,
which are marine invertebrate animals.
Coral reefs are a precious resource in the ocean because of their beauty and
biodiversity. Coral reefs provide shelter for a wide variety of marine life, they ...