biological pump


Also found in: Wikipedia.

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 ?
One novel design that emerged from this process, the double-acting bladder pump, was inspired by the heart, a multichambered biological pump with common walls (Figure 1).
The biological pump plays a key role in regulating Earth's climate, because carbon dioxide is a heat-trapping gas that Scientists find moments of fun and games on long research cruises, including decorating their makeshift bubble lab aboard ship.
However, once in a while in our intensive care environment we challenge Nature's rules when we splice artificial support into the biological pump.
The Atlantic meridional overturning circulation enhances the biological pump, and if it declined it should have had an impact on primary productivity as well as the overall climate for the region," explains Oregon State University's Andreas Schmittner, lead author of the new research, which was published in Climate of the Past.
The biological pump in the subtropical North Pacific Ocean: Nutrient sources, Redfield ratios, and recent changes.
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.
Their results suggest that in this region, absorption by the biological pump is minimal, with the physical pump capturing roughly 100 times as much carbon.
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.