Abyssal plain

Abyssal plain

The deep ocean floor, an expanse of low relief at depths of 4,000 to 6,000 m. Seafloor Zones

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Industry/Domain: Biology
Category: Marine biology
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abyssal plain

Biology; Marine biology

The deep ocean floor, an expanse of low relief at depths of 4,000 to 6,000 m. Seafloor Zones

abyssal plain

Earth science; Physical oceanography

Flat areas of the ocean basin floor which slope less than 1 part in 1000. These were formed by turbidity currents which covered the preexisting topography. Most abyssal plains ...

abyssal plain

Fishing; Marine fishery

The ocean floor offshore from the continental margin, usually very flat with a slight slope.

abyssal plain

Geography; Physical geography

Large, relatively flat areas of ocean floor found at 5,000-6,000m below sea level. If sediments are discharged from a river and deposit relatively quickly onto the plain they may ...

abyssal plain

Earth science; Geology

Large area of extremely flat ocean floor lying near a continent and generally over 4 km in depth.

abyssal plain

Biology; Ecology

The surface of the oceanic crust 5,000 to 7,000 meters below the ocean surface. Ocean basins take up 30% of the Earth's surface.

macroplankton

Biology; Marine biology

Planktonic organisms that are 200-2,000 micrometers in size.

nanoplankton

Biology; Marine biology

Planktonic organisms that are 2-20 micometers in size.

megaplankton

Biology; Marine biology

Planktonic organisms that are greater than or equal to 2000 micrometers in size.

mixoplankton

Biology; Marine biology

Planktonic organisms that can be classified at several trophic levels. For example, some ciliates can be photosynthetic but also can ingest other plankton and are heterotrophic.

logistic population growth

Biology; Marine biology

Population growth that is modulated by the population size relative to carrying capacity. Population growth declines as population approaches carrying capacity, and is negative ...

global warming

Biology; Marine biology

Predicted increase in the earth's oceanic and atmospheric temperature, owing to additions of carbon dioxide to the atmosphere, as a result of human activities.

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