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Volume 14, issue 20
Biogeosciences, 14, 4795–4813, 2017
https://doi.org/10.5194/bg-14-4795-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
Biogeosciences, 14, 4795–4813, 2017
https://doi.org/10.5194/bg-14-4795-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 26 Oct 2017

Research article | 26 Oct 2017

Vertical segregation among pathways mediating nitrogen loss (N2 and N2O production) across the oxygen gradient in a coastal upwelling ecosystem

Alexander Galán et al.

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Arp, D. J. and Stein, L. Y.: Metabolism of inorganic N compounds by ammonia-oxidizing bacteria, Crit. Rev. Biochem. Mol. Biol., 38, 471–495, https://doi.org/10.1080/10409230390267446, 2003.
Balderston, W. L., Sherr, B., and Payne, W. J.: Blockage by acetylene of nitrous oxide reduction in Pseudomonas perfectomarinus, Appl. Environ. Microb., 31, 504–508, 1976.
Bange, H. W., Rapsomanikis, S., and Andreae, M. O.: Nitrous oxide in coastal waters, Global Biogeochem. Cy., 10, 197–201, 1996.
Barth, J. A., Menge, B. A., Lubchenco, J., Chan, F., Bane, J. M., Kirincich, A. R., McManus, M. A., Nielsen, K. J., Pierce, S. D., and Washburn, L.: Delayed upwelling alters nearshore coastal ocean ecosystems in the northern California current, P. Natl. Acad. Sci. USA, 104, 3719–3724, 2007.
Belmar, L., Molina, V., Ramírez-Flandez, S., Galán, A., and Ulloa, O.: Contribution of Thaumarchaeota to the picoplankton community inhabiting a seasonal wind-driven coastal upwelling ecosystem, in preparation, 2017.
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This investigation characterizes the variability of pathways involved in N loss in the water column over the continental shelf off central Chile during the development of the upwelling season. Our results highlight the links between several pathways involved in N removal, and considering the extreme variation in oxygen observed could help to understand the ecological and biogeochemical implications due to global warming when intensification and/or expansion of the oceanic OMZs are projected.
This investigation characterizes the variability of pathways involved in N loss in the water...
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