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Biogeosciences An interactive open-access journal of the European Geosciences Union
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BG | Volume 15, issue 9
Biogeosciences, 15, 2961–2989, 2018
https://doi.org/10.5194/bg-15-2961-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue: Interactions between planktonic organisms and biogeochemical...

Biogeosciences, 15, 2961–2989, 2018
https://doi.org/10.5194/bg-15-2961-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 16 May 2018

Research article | 16 May 2018

Nutrient availability and the ultimate control of the biological carbon pump in the western tropical South Pacific Ocean

Thierry Moutin et al.
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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, https://doi.org/10.1016/S0967-0645(00)00174-0, 2001. 
Aminot, A. and Kérouel, R.: Dosage automatique des nutriments dans les eaux marines : méthodes en flux continu, Ed. Ifremer, Méthodes d'analyse en milieu marin, 188 pp., 2007. 
Antia, A. N.: Solubilization of particles in sediment traps: revising the stoichiometry of mixed layer export, Biogeosciences, 2, 189–204, https://doi.org/10.5194/bg-2-189-2005, 2005. 
Banse, K.: Reflections about chance in my career, and on the top-down regulated world, Annu. Rev. Mar. Sci., 5, 2.1–2.19, 2013. 
Bates, N. R., Best, M. H. P., Neely, K., Garley, R., Dickson, A. G., and Johnson, R. J.: Detecting anthropogenic carbon dioxide uptake and ocean acidification in the North Atlantic Ocean, Biogeosciences, 9, 2509–2522, https://doi.org/10.5194/bg-9-2509-2012, 2012. 
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Surface waters of the western tropical South Pacific were sampled along a longitudinal 4000 km transect during the stratified period between the Melanesian Archipelago and the western part of the South Pacific gyre. We found a significant biological carbon pump sustained almost exclusively by N2 fixation and essentially controlled by phosphate availability in the iron-rich Melanesian Archipelago waters which appears to be a net sink for atmospheric CO2 while the gyre is in a quasi-steady state.
Surface waters of the western tropical South Pacific were sampled along a longitudinal 4000 km...
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