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

Fjord

Natural environment; Coral reefs

A deep-water inlet, carved out by glacial action and usually surrounded by mountains or steep slopes.

Ribbon reef

Natural environment; Coral reefs

A large offshore linear reef, seaward of a fringing reef, which is linear but does not form a barrier to the land. A synonym of shelf-edge reef and sill reef.

Pore water

Natural environment; Coral reefs

Water between the grains of a sediment; also called interstitial water.

Calcareous ooze

Natural environment; Coral reefs

A biogenous sediment that is made of the calcium carbonate shells and skeletons of marine organisms.

Instar

Natural environment; Coral reefs

A discreet, in-between moult stage, during the metamorphosis of an arthropod from larva to adult.

Melon

Natural environment; Coral reefs

A lens-shaped fatty deposit lying in the facial depression of many toothed whales, such as the bottle-nosed dolphin. It appears as the bulging forehead just in front of the blowhole. It contains ...