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

illecium

Natural environment; Coral reefs

A "fishing rod-like" appendage on the head of some fishes, usually a modified dorsal fin spine.

method

Natural environment; Coral reefs

A description of how data and information are collected.

reef block

Natural environment; Coral reefs

A large, isolated rock section that has been displaced from the reef platform, reef margin, reef front zones or the non-calcium carbonate bedrock, usually resulting from storm waves.

fluctuating asymmetry (FA)

Natural environment; Coral reefs

A pattern of small, random deviations between sides in the size of a given trait -the random component of bilateral asymmetry, i.e., subtle random deviations from perfect bilateral symmetry. It ...

expressed sequence tag (EST)

Natural environment; Coral reefs

A small part of the active part of a gene, made from cdna which can be used to fish the rest of the gene out of the chromosome by matching base pairs with part of the gene. The EST can be ...

A transformation which occurs on a worldwide scale (for example, an increase in CO2 in the atmosphere) or exhibits sufficient cumulative effects to have worldwide impact (for example, local species ...

ootheca

Natural environment; Coral reefs

An egg mass protected by a surrounding tough covering or a hard foam-like protein covering. Oothecae are made by many insect species and mollusks; an egg case.