Critical oxygen levels and metabolic suppression in oceanic oxygen minimum zones

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Critical oxygen levels and metabolic suppression in oceanic oxygen minimum zones.

The survival of oceanic organisms in oxygen minimum zones (OMZs) depends on their total oxygen demand and the capacities for oxygen extraction and transport, anaerobic ATP production and metabolic suppression. Anaerobic metabolism and metabolic suppression are required for daytime forays into the most extreme OMZs. Critical oxygen partial pressures are, within a range, evolved to match the mini...

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Zones of minimum oxygen level are found at intermediate depths in most of the world's oceans and, although the oxygen partial pressure in some of these 'oxygen minimum layers' is only a fraction of a kilopascal, populations of pelagic metazoans exist there. These oxygen minimum layers are areas of the water column and the associated benthos with stable conditions of continuously low oxygen leve...

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ژورنال

عنوان ژورنال: Journal of Experimental Biology

سال: 2011

ISSN: 1477-9145,0022-0949

DOI: 10.1242/jeb.049171