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Denitrification in Bahia Darwin (Galapagos Islands) an intermittent anoxic basin in the tropics

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Abstract

Changes in oxygen and nitrate in Bahia Darwin between July 1968 and March 1969 indicate that denitrification occurred in the deeper waters of this tropical, intermittently anoxic basin. Assuming constant rates of oxidation of organic matter in equally spaced depth intervals below the pycnocline depth, the rate of denitrification was estimated to be about 62.0 µg-atom NO3-N/liter/year. This rate is attributable to denitrification in the water column because a smaller rate was estimated for strata closer to the sediment water interface.

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References

  • Barber, R. T. & Norton, J. 1968. Hydrography of Bahia Darwin Isla genovesa-Expedition 17. Stanford Oceanographic Expedition 17: 78–84 (unpublished manuscript).

    Google Scholar 

  • Cline, J. D. & Richards, F. A. 1972. Oxygen deficient conditions and nitrate reduction in the eastern tropical North Pacific Ocean. Limnol. Oceanogr. 17 (6): 885–900.

    Google Scholar 

  • Goering, J. J. & Dugdale, R. C. 1966. Denitrification rates in an island bay in the equatorial Pacific Ocean. Science 154: 505–506.

    Google Scholar 

  • Redfield, A. C., Ketchum, B. H. & Richards, F. A. 1963. The influence of organisms on the composition of seawater, p. 26–77. In M. N. Hill (ed.), The Sea, V. 2. Interscience.

  • Richards, F. A. & Broenkow, W. W. 1971. Chemical changes, including nitrate reduction in Darwin Bay Galapagos Archipelago, over a 2-month periode, 1969. Limnol. Oceanogr. 16 (5): 758–765.

    Google Scholar 

  • Richards, F. A., Cline, J. D. Broenkow, W. W. & Atkinson, L. P. 1965. Some consequences of the decomposition of organic matter in Lake Nitanat, an anoxic fjord. Limnol. Oceanogr. 10 (suppl.): R185-R201.

    Google Scholar 

  • Strickland, J. D. H. & Parsons, T. 1968. A practical handbook of seawater analysis. Fish. Res. Bd. Can. Ottawa, 310 p.

    Google Scholar 

  • Wiebe, P. H., Cox, J. & Malone, T. 1968. A hydrographic survey of Darwin Bay. Stanford Oceanographic Expedition 19: 44–63 (unpublished manuscript).

    Google Scholar 

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Authors and Affiliations

  1. Hopkins Marine station, 93950, Pacific Grove, California

    James Cox

  2. Woods Hole Oceanographic Institution Woods Hole, 02543, Massachusetts

    Peter H. Wiebe

Authors
  1. James Cox
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  2. Peter H. Wiebe
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Additional information

Contribution No. 3193 from the Woods Hole Oceanographic Institution. Woods Hole, Massachusetts 02543. This study was supported in part by the National Science Foundation Grants GA 29303 and GB 6870. Reprints should be requested from the second author.

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Cox, J., Wiebe, P.H. Denitrification in Bahia Darwin (Galapagos Islands) an intermittent anoxic basin in the tropics. Hydrobiologia 50, 123–127 (1976). https://doi.org/10.1007/BF00019815

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  • DOI: https://doi.org/10.1007/BF00019815

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