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HABITAT PELAGIQUE [1 record]

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Record 1 2020-05-05

English

Subject field(s)
  • Ecology (General)
  • Oceanography
CONT

The modern marine environment is divided into two major realms, the benthic and the pelagic, based upon the ecological characteristics and marine life associated with them. ... The benthic realm refers to the floor of the oceans, extending from the high tide line to the greatest ocean depths. ... The pelagic realm consists of all of the ocean water covering the benthic realm. It is divided horizontally into the neritic, or fertile near-shore, province and the oceanic province. Vertically it is divided into the euphotic, or photic, zone and the aphotic (without sunlight) zone.

CONT

Two major zones can be distinguished: the benthic and the pelagic zone. … Pelagic zone (the water above the bottom). Animals that are strong swimmers and live in open water and middle layers of the water are called nekton. They include squids, whales, and adult fish. Plankton are organisms that move passively with the water currents, and inhabit the upper layers of the pelagic zone.

French

Domaine(s)
  • Écologie (Généralités)
  • Océanographie
DEF

Dans l'océan, zone d'eau libre située juste au-dessus du fond.

CONT

On peut distinguer deux grandes zones : la zone benthique et la zone pélagique. […] Zone pélagique (juste au-dessus du fond). Le necton est l'ensemble des organismes marins bons nageurs qui vivent en pleine mer et dans les couches intermédiaires de l'eau. Les encornets, les baleines et les poissons adultes sont de ce groupe. Le plancton est constitué d'organismes qui flottent dans l'eau et se déplacent passivement au gré des courants dans les couches supérieures de la zone pélagique.

OBS

pélagien (adj.) : synonyme vieilli de «pélagique».

Key term(s)
  • zone pélagienne
  • région pélagienne
  • milieu pélagien
  • habitat pélagien
  • environnement pélagien

Spanish

Campo(s) temático(s)
  • Ecología (Generalidades)
  • Oceanografía
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