The oxygen-18 isotope approach for measuring aquatic metabolism in high-productivity waters

@article{Tobias2007TheOI,
  title={The oxygen-18 isotope approach for measuring aquatic metabolism in high-productivity waters},
  author={Craig R. Tobias and John Karl B{\"o}hlke and Judson W. Harvey},
  journal={Limnology and Oceanography},
  year={2007},
  volume={52},
  pages={1439-1453}
}
  • Craig R. Tobias, John Karl Böhlke, Judson W. Harvey
  • Published 2007
  • Chemistry
  • Limnology and Oceanography
  • We examined the utility of d18O2 measurements in estimating gross primary production (P), community respiration (R), and net metabolism (P : R) through diel cycles in a productive agricultural stream located in the midwestern U.S.A. Large diel swings in O2 (6200 mmol L21) were accompanied by large diel variation in d18O2 (610%). Simultaneous gas transfer measurements and laboratory-derived isotopic fractionation factors for O2 during respiration (ar) were used in conjunction with the diel… CONTINUE READING

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