Coral reefs

Coral reefs

Coral reefs are structures formed from the calcium carbonate secretions of corals. They are colonies of tiny animals in marine areas containing few nutrients.

Industry: Natural environment

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Coral reefs

hypersaline

Natural environment; Coral reefs

Referring to water with a salinity higher than that of natural seawater.

buoyancy control device (BCD)

Natural environment; Coral reefs

The BCD is a mandatory piece of equipment for SCUBA diving. It is an expandable bladder, most commonly worn as an expandable vest, that can be inflated with air from the tank to increase buoyancy ...

The length of a minute of arc, 1/21,600 of an average great circle of the Earth. Generally one minute of latitude is considered equal to one nautical mile. The accepted United States value as of 1 ...

nadir

Natural environment; Coral reefs

The satellite viewing angle directly downward; that point on the Earth vertically below the observer (satellite); the lowest point of a dry basin or depression, or the deepest point of a body of ...

algae

Natural environment; Coral reefs

Unicellular, multicellular, solitary, or colonial organisms that contain chlorophyll. They lack roots, stems, leaves, flowers, and seeds. Algae are in the Kingdom Protista.

dark-spots disease

Natural environment; Coral reefs

A coral disease characterized by darkly pigmented areas of tissue on stony corals.-At present, there is no known pathogen. The coral tissue remains intact, although at times lesions and coral tissue ...