Reef

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Pamalican island with surrounding reef, Sulu Sea, Philippines.

In nautical terminology, a reef is a rock, sandbar, or other feature lying beneath the surface of the water (six fathoms or less beneath low water).

• See also: Wikipedia, Commons

• Related: Benjamin Kahn, Reef Hobbyist Magazine

Reef Rescue - Smithsonian Ocean Portal Reef Rescue - Smithsonian Ocean Portal ocean.si.edu/.../reef-rescue-protect-coral-reefs-your-actions - Web

Coral Reefs of the Tropics Coral Reefs of the Tropics www.nature.org/joinanddonate/rescuereef/ - Web

NOAA Photo Library NOAA Photo Library www.photolib.noaa.gov/reef/ - Web

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Reef Environmental Education Foundation Reef Environmental Education Foundation www.reef.org - Web

NOS Data Explorer NOS Data Explorer nosdataexplorer.noaa.gov/nosdataexplorer/ - Web

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