Articles | Volume 13, issue 8
Biogeosciences, 13, 2241–2255, 2016

Special issue: Low oxygen environments in marine, fresh and estuarine...

Biogeosciences, 13, 2241–2255, 2016

Research article 19 Apr 2016

Research article | 19 Apr 2016

Ammonium excretion and oxygen respiration of tropical copepods and euphausiids exposed to oxygen minimum zone conditions

Rainer Kiko et al.


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Latest update: 01 Dec 2021
Short summary
The diel vertical migration of zooplankton and nekton results in an active export of carbon and nitrogen from the oceans surface layer. In vast areas of the ocean the daytime distribution depth of migrating organisms corresponds to the core of an oxygen minimum zone (OMZ). We show that exposure to OMZ conditions can result in a strong depression of respiration and ammonium excretion in zooplankton, a fact that needs to be considered when calculating carbon and nitrogen fluxes in OMZ regions.
Final-revised paper