DescriptionAnnual mean dissolved oxygen and apparent oxygen utilisation (World Ocean Atlas 2005).png
English: Annual mean dissolved oxygen (upper panel) and apparent oxygen utilisation (lower panel) from the World Ocean Atlas2005. The data plotted show a meridional section running north-south at 180°E (approximately the centre of the Pacific Ocean). White regions indicate section bathymetry. The plot was produced using MATLAB.
While dissolved oxygen concentrations are necessarily always positive, apparent oxygen utilisation can be both positive and negative (shown here in pale magenta). Positive values indicate regions where oxygen has been consumed to concentrations below its equilibriumsaturation concentration. Negative values indicate regions in which the dissolved oxygen concentration is elevated above its equilibrium saturation concentration, typically in near-surface euphotic waters by primary production and the resulting oxygen evolution.
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{{Information |Description={{en|1=Annual mean dissolved oxygen (upper panel) and apparent oxygen utilisation (lower panel) from the World Ocean Atlas [http://www.nodc.noaa.gov/OC5/WOA05/pr_woa05.html 2005]. The data plotted show a [[Zonal and