Benthic flux of oxygen and nutrients across Oregon/California shelf sediments

A free vehicle benthic chamber has been used to define benthic nutrient fluxes on the Southern Oregon and Northern California shelf (90–200m). We measured fluxes on two occasions, in the spring and fall of 2007, to assess variability in fluxes and bioirrigation rates. Chambers were also employed to...

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Bibliographic Details
Published in:Continental shelf research 2013-03, Vol.55, p.66-75
Main Authors: Berelson, W.M., McManus, J., Severmann, S., Reimers, C.E.
Format: Article
Language:English
Subjects:
Benthic flux
Hypoxia
Oxygen uptake
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Summary:A free vehicle benthic chamber has been used to define benthic nutrient fluxes on the Southern Oregon and Northern California shelf (90–200m). We measured fluxes on two occasions, in the spring and fall of 2007, to assess variability in fluxes and bioirrigation rates. Chambers were also employed to assess the impact of changing oxygen content on benthic fluxes. Oxygen uptake rates are similar to within 30% between sites in Oregon, Northern California and Central California, suggesting that a large portion of the Western US continental shelf experiences the same oxygen demand. Oxygen uptake (−2 to −10mmolm−2d−1) at S. Oregon/N. California sites is likely responsible for
ISSN:0278-4343
1873-6955
DOI:10.1016/j.csr.2013.01.009