Scientific Glossary

Glossary of terms and abbreviations relevant to the International Seabed Authority and the documents it produces

Please note that this is a constantly evolving document.

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Titlesort descending
Nautile

French Deep-Sea Research Vehicle. Rated to a depth of 6000m.

NaVaBa

Natural Variability of Baseline (COMRA project)

Nekton

The active swimmers of the pelagic environment (fish, mammals, squid, etc.).

Nematoda

A phylum in the animal kingdom. A dominant group within the meiofauna. Scientific name for nematode. Commonly called roundworms.

Nematode

Synonymous with Nematoda.

NERC

Natural Environment Research Council (United Kingdom).

Neritic

Pertaining to the water column overlying the Continental Shelf. Compare to Oceanic.

Niche

An organism's role in its environment.

NIO

National Institute of Oceanography (India).

Niskin Bottle

Quantitative sampling device for taking water samples below the surface. Comprised of a cylindrical container with spring loaded stoppers at both ends. Often used in conjunction with CTD sensors.

NOAA

National Oceanic and Atmospheric Administration (United States).

Nutricline

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