Biogeosciences
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Articles | Volume 20, issue 2
Articles | Volume 20, issue 2
https://doi.org/10.5194/bg-20-325-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-20-325-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 20, issue 2
Research article
 | 
19 Jan 2023
Research article |  | 19 Jan 2023

Nitrite cycling in the primary nitrite maxima of the eastern tropical North Pacific

Nicole M. Travis, Colette L. Kelly, Margaret R. Mulholland, and Karen L. Casciotti

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Short summary
The primary nitrite maximum is a ubiquitous upper ocean feature where nitrite accumulates, but we still do not understand its formation and the co-occurring microbial processes involved. Using correlative methods and rates measurements, we found strong spatial patterns between environmental conditions and depths of the nitrite maxima, but not the maximum concentrations. Nitrification was the dominant source of nitrite, with occasional high nitrite production from phytoplankton near the coast.
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