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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.

Contributors in Coral reefs

Coral reefs

Thermohaline circulation

Natural environment; Coral reefs

The density-driven convective circulation system of the world's oceans. Warm Atlantic water moves northward along the axis of the Gulf Stream, and evaporation increases water density while releasing ...

Trimix

Natural environment; Coral reefs

A breathing gas mixture of helium, oxygen, and nitrogen. By using trimix, it is possible for divers to descend to hundreds of feet without suffering from toxic partial pressures of oxygen (which ...

Downwelling

Natural environment; Coral reefs

A downward current of surface water in the ocean, usually caused by differences in the density of seawater.

Autopolyploid

Natural environment; Coral reefs

A polyploid formed from the doubling of a single genome.

Soft dorsal

Natural environment; Coral reefs

A dorsal fin containing only soft rays, or the soft-rayed hind part of the dorsal fin, if both spines and soft rays are present (as in squirrelfish).

Gene index

Natural environment; Coral reefs

A listing of the number, type, label and sequence of all the genes identified within the genome of a given organism.

Sweeper polyp

Natural environment; Coral reefs

A polyp that acts in an aggressive manner by stinging neighbouring corals and sessile invertebrates.

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