Articles | Volume 17, issue 2
Biogeosciences, 17, 455–473, 2020

Special issue: Ocean deoxygenation: drivers and consequences – past, present...

Biogeosciences, 17, 455–473, 2020

Research article 30 Jan 2020

Research article | 30 Jan 2020

Zooplankton diel vertical migration and downward C flux into the oxygen minimum zone in the highly productive upwelling region off northern Chile

Pritha Tutasi and Ruben Escribano

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Revised manuscript not accepted
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Cited articles

Al-Mutairi, H. and Landry, M. R.: Active export of carbon and nitrogen at station ALOHA by diel migrant zooplankton, Deep-Sea Res. Pt. II, 48, 2083–2103,, 2001. 
Andersen, V., Devey, C., Gubanova, A., Picheral, M., Melnikov, V., Tsarin, S., and Prieur, L.: Vertical distributions of zooplankton across the Almeria-Oran frontal zone (Mediterranean Sea), J. Plankton Res., 26, 275–293,, 2004. 
Antezana, T.: Vertical distribution and diel migration of Euphausia mucronata in the oxygen minimum layer of the Humboldt Current, Oceanogr. East. Pacific II, 2, 13–28, 2002.  
Antezana, T.: Species-specific patterns of diel migration into the Oxygen Minimum Zone by euphausiids in the Humboldt Current Ecosystem, Prog. Oceanogr., 83, 228–236,, 2009. 
Antezana, T.: Euphausia mucronata: A keystone herbivore and prey of the Humboldt Current System, Deep-Sea Res. Pt. II, 57, 652–662,, 2010. 
Short summary
Vertical migration of zooplankton has rarely been studied under the effect of a variable community structure, which depending on the behavior and size of its groups can strongly alter the magnitude of C being actively taken to depth by migrants. Here, we address this issue in a highly productive upwelling system, where a high amount of zooplankton can daily move below the mixed layer despite presence of an extremely low–oxygen water and so contribute to a significant export of C to depth.
Final-revised paper