Critical depth

Critical depth

That depth above which total integrated photosynthetic rate equals total integrated respiration of photosynthesizers.

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Industry/Domain: Biology
Category: Marine biology
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critical depth

Natural environment; Coral reefs

The depth in seawater below which carbon loss through respiration by phytoplankton exceeds carbon gain through photosynthesis; no net phytoplankton production occurs.

critical depth

Biology; Marine biology

That depth above which total integrated photosynthetic rate equals total integrated respiration of photosynthesizers.

critical depth

Weather; Meteorology

In a specified stream channel, the water depth at which the specific energy is the minimum for a given rate of flow. Critical depth usually occurs at the point corresponding to an ...

critical depth

Engineering; Civil engineering

The depth of flow when the Froude number equals one. The depth of flow at which the discharge is maximum for a given specific energy, or the depth at which a given discharge ...

critical depth control

Weather; Meteorology

A condition in a stream where, at a certain point, the water depth passes from above critical depth to below critical depth. A change in flow conditions downstream of the point of ...

depth

Education; SAT vocabulary

Deepness.

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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