net oxygen consumption

net ox·y·gen con·sump·tion

(net ok'si-jen kŏn-sŭmp'shŭn)
Use of oxygen beyond that necessary to sustain life at rest (i.e., oxygen consumption for a given activity less resting oxygen consumption).
References in periodicals archive ?
Respiration and photosynthesis by these fouling organisms would be expected to affect net oxygen consumption by the whole mass, thereby affecting the supply of oxygen to internal embryos.