biological pump


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biological pump

A term defined of the movement of CO2 in the context of global warming. The biological pump moves CO2 from the ocean surface to marine plants (e.g., phytoplankton), which convert the CO2 to food for zooplankton and their predators. Most of the CO2 taken up by phytoplankton is recycled near the surface; about 30% sinks into deeper waters before being converted back into CO2 by marine bacteria.
References in periodicals archive ?
This behaviour speeds up the transport of organic matter into the ocean, the engine of the biological pump that removes CO2 from the atmosphere, because instead of slowly sinking from the surface, it is rapidly transported to 500 and 700 meters deep and released in the form of feces.
OCEAN-CERTAIN will identify and quantify multi-stressor impacts and feedbacks and how these alter the functionality and structure of the food web and efficiency of the biological pump in different bio-geographical regions.
The second natural process is the biological pump, in which dead organisms and algae carry carbon from the ocean's surface into deeper waters.
In these iron-limited environments (which make up approximately 30 per cent of the global ocean), the biological pump becomes inefficient and the ocean's ability to absorb carbon dioxide from the atmosphere is reduced.
That would make the biological pump stronger, but not necessarily more efficient--because not all the sinking carbon reaches the deep ocean.
As an alternative to today's protein therapy which involves frequent bolus injections of proteins, Medgenics is developing a biological pump, called the Biopump, made using the patient's own skin.
Noble and Randall hypothesised that trees might act as a sort of biological pump, bringing this alkalinity to the surface and, in this way, reducing the acidity of the surface layer.
It is nature's recycler, a process that helps to keep forest ecosystems running smoothly, a biological pump that drives the cycle of life.
This functions as an upward biological pump, reversing the assumption of some scientists that whales accelerate the loss of nutrients to the bottom.
Researchers slowly developed the hypothesis that vortices of cold or warm water--eddies--might somehow act as a biological pump.
Although they're small, these tiny plants serve as a mighty biological pump.