Oxygen Supersaturation in the Ocean: Biological Versus Physical Contributions

@article{Craig1987OxygenSI,
  title={Oxygen Supersaturation in the Ocean: Biological Versus Physical Contributions},
  author={Harmon Craig and Thomas L. Hayward},
  journal={Science},
  year={1987},
  volume={235},
  pages={199 - 202}
}
A method based on measurements of dissolved molecular nitrogen, molecular oxygen, and argon can distingish biological from physical contributions to oxygen supersaturation in the ocean. The derived values of biological O2 production can be used as a check on estimates of total organic productivity measured by instantaneous rates of carbon-14 assimilation. Application to the shallow summer O2 maxima in the North Pacific gyres shows that about 72% of the O2 supersaturation maximum at 28�N and… Expand
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References

SHOWING 1-10 OF 12 REFERENCES
Biogenic fluxes of carbon and oxygen in the ocean
Rates of oxygen utilization (OUR) at depth in the ocean have been interpreted as showing that rates of carbon fixation by phytoplankton, as estimated by 14CO2 assimilation in vitro, must be inExpand
Primary productivity in the central North Pacific: comparison of oxygen and carbon fluxes
Abstract A re-examination of published data on oxygen and carbon fluxes in the pelagic zone of the central North Pacific Ocean does not support the hypothesis that inferred oxygen evolution isExpand
Aquatic Primary Productivity and the 14C-CO2 Method: A History of the Productivity Problem
Recent appraisals of the primary productivity of the biosphere have concluded that in spite of their vast area, the total annual net production of lakes and oceans is only about one half of theExpand
The Pacific shallow oxygen maximum, deep chlorophyll maximum, and primary productivity, reconsidered
TLDR
Productivity estimated from oxygen accumulation is much greater than the primary productivity measured by the 14 C method, suggesting that the 14C method substantially underestimates true productivity not only in high and low latitudes but generally. Expand
Dissolved gas saturation anomalies and excess helium in the ocean H. Craig and R.F. Weiss, Earth Planet. Sci. Letters 10 (1971) 289-296
Abstract New solubility measurements have been made for helium and neon in seawater; the results (published elsewhere) show that neon is actually supersaturated in the ocean, rather than generallyExpand
THE CHESAPEAKE BAY INSTITUTE TECHNIQUE FOR THE WINKLER DISSOLVED OXYGEN METHOD
A modified technique for the Winkler determination of dissolved oxygen has been used at the Chesapeake Bay Institute for several years. The modifications result in increased simplicity and speed andExpand
Environmental heterogeneity and plankton community structure in the central North Pacific
Compares aux autres systemes pelagiques, ceux du Pacifique Nord central presentent une heterogeneite relativement faible, specialement sur les mesoechelles, ce qui suggere que les perturbations lieesExpand
Are the Ocean's Deserts Blooming?
  • R. Kerr
  • Environmental Science, Medicine
  • Science
  • 1983
...
1
2
...