Multiple metabolisms constrain the anaerobic nitrite budget in the Eastern Tropical South Pacific

Babbin, Andrew R.; Peters, Brian D.; Mordy, Calvin W.; Widner, Brittany; Casciotti, Karen L.; Ward, Bess B.

doi:10.1002/2016gb005407

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Multiple metabolisms constrain the anaerobic nitrite budget in the Eastern Tropical South Pacific

2017
By Babbin, Andrew R. ; Peters, Brian D. ; Mordy, Calvin W. ; ...
Source: Global Biogeochemical Cycles, 31(2), 258-271

[PDF-707.84 KB]

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Details:

Journal Title:

Global Biogeochemical Cycles
Personal Author:

Babbin, Andrew R. ; Peters, Brian D. ; Mordy, Calvin W. ; Widner, Brittany ; Casciotti, Karen L. ; ... More +

Babbin, Andrew R. ; Peters, Brian D. ; Mordy, Calvin W. ; Widner, Brittany ; Casciotti, Karen L. ; Ward, Bess B. Less -
NOAA Program & Office:

OAR (Oceanic and Atmospheric Research) ; JISAO (Joint Institute for the Study of the Atmosphere and Ocean) ; PMEL (Pacific Marine Environmental Laboratory)

OAR (Oceanic and Atmospheric Research) ; JISAO (Joint Institute for the Study of the Atmosphere and Ocean) ; PMEL (Pacific Marine Environmental Laboratory) Less -
Description:

The Eastern Tropical South Paci ﬁc is one of the three major oxygen de ﬁcient zones (ODZs) in the global ocean and is responsible for approximately one third of marine water column nitrogen loss. It is thebest studied of the ODZs and, like the others, features a broad nitrite maximum across the low oxygen layer. How the microbial processes that produce and consume nitrite in anoxic waters interact to sustain this feature is unknown. Here we used 15N-tracer experiments to disentangle ﬁve of the biologically mediated processes that control the nitrite pool, including a high-resolution pro ﬁle of nitrogen loss rates. Nitrate reduction to nitrite likely depended on organic matter ﬂuxes, but the organic matter did not drive detectable
Keywords:

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Atmospheric Science Environmental Chemistry General Environmental Science Global And Planetary Change
Source:

Global Biogeochemical Cycles, 31(2), 258-271
DOI:

https://doi.org/10.1002/2016gb005407
ISSN:

0886-6236;1944-9224;
Format:

PDF
Publisher:

American Geophysical Union (AGU)
Document Type:

Journal Article
Funding:

Grant no. NA10OAR4320148
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urn:sha256:5be30be06ed5692213b5c45c6c9c87effb0958d0b86a593fcd72787d459f7c3c
Download URL:

https://repository.library.noaa.gov/view/noaa/52519/noaa_52519_DS1.pdf
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