Glossaire Scientifique

Glossaire des termes et des abréviations pertinentes à l'Autorité internationale des fonds marins et à ses documents.
Veuillez noter qu’il s’agit d’un document en constant développement.

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Titlesort ascending
Turbidity

The measure of the total amount of particular matter in a volume of water. A measure of "cloudiness".

Trophic Level

The position of an organism in a food chain or food web. For example primary producer (plants), primary consumer (herbivores) orsecondary consumer (carnivores ). Can also refer to the state of nutrients in a water body, for example eutrophic or oligotrophic.

Triple Junction

A point or area where three tectonic plates meet.

Trench

A depression in the seafloor lying below 6000m.

Transmissometer

Device used to measure the attenuation of light through a medium such as of water. Data can be correlated to the amount of particles present.

Transect

The line traversed by a ship during a sampling regime (horizontal transect) or samples/sampling gear during sampling (vertical transect). Vertical transects can be through the water column, sediment, or both.

TOC

Total Organic Carbon.

TN

Total Nitrogen.

Tiburon

American Remotely Operated Vehicle.

Third-Level Impacts

Synonymous with indirect impacts.

Thermocline

A layer of water in which there is a rapid change of temperature with depth. Compare to halocline, nutricline and pycnocline.

Temporal Scales

Scales characteristic of dimensions in time. Also pertains to the temporal period of sampling. Compare to spatial scales

Tectonic Plate

A rigid plate, 100-150km thick, which is part of Earth's surface and moves slowly across the Earth's internal structure relative to other tectonic plates.

Taxonomy

Orderly classification of animals or plants according to their presumed natural relationship, grouping organisms into taxon based on shared characteristics.

Taxonomic

Pertaining to taxonomy. The major taxonomic groups are Kingdom, Phylum, Class, Order, Family, Genus and Species where each group is a sub-division of the previous.

Taxon

A taxonomic group of any rank. The major taxon are Kingdom, Phylum, Class, Order, Family, Genus and Species where each group is a sub-division of the previous.