Hostname: page-component-77c89778f8-5wvtr Total loading time: 0 Render date: 2024-07-18T01:01:02.389Z Has data issue: false hasContentIssue false
  • English
  • Français

A Simple Method to Determine the O:N Ratio of Small Marine Animals*

Published online by Cambridge University Press:  11 May 2009

N. B. Snow  and
P. J. Leb. Williams
N. B. Snow*
Affiliation:
Department of Oceanography, The University, Southampton
P. J. Leb. Williams
Affiliation:
Department of Oceanography, The University, Southampton
*
†Present address: Department of Zoology, University of Manitoba, Winnipeg, Manitoba.
Get access Rights & Permissions [Opens in a new window]

Extract

INTRODUCTION

The atomic ratio of oxygen-consumed to ammonia-nitrogen excreted by marine organisms (O:N ratio) is more conveniently and precisely determined with current analytical procedures than the respiratory quotient (R.Q.). When an organism is oxidizing protein exclusively the O: N ratio will be low, less than 7; it will be high when either fat or carbohydrate is oxidized.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 51 , Issue 1 , February 1971 , pp. 105 - 109
Copyright
Copyright © Marine Biological Association of the United Kingdom 1971

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Footnotes

*

This work was carried out whilst one of us (N.B. S.) was in receipt of a Research Studentship from the Natural Environment Research Council.

References

REFERENCES

Conover, R. J. & Corner, E. D. S., 1968. Respiration and nitrogen excretion by some marine zooplankton in relation to their life-cycles. J. mar. biol. Ass. U.K., Vol. 48, pp. 49–75.CrossRefGoogle Scholar
Corner, E. D. S. & Cowey, C. B., 1968. Biochemical studies on the production of marine zooplankton. Biol. Rev., Vol. 43, pp. 393–426.CrossRefGoogle ScholarPubMed
Corner, E. D. S. & Newell, B. S., 1967. On the nutrition and metabolism of zooplankton. IV. The forms of nitrogen excreted by Calanus. J. mar. biol. Ass. U.K., Vol. 47, pp. 113–20.CrossRefGoogle Scholar
Corner, E. D. S., Cowey, C. B. & Marshall, S. M., 1965. On the nutrition and metabolism of zooplankton. III. Nitrogen-excretion by Calanus. J. mar. biol. Ass. U.K., Vol. 45, pp. 429–42.CrossRefGoogle Scholar
Harris, E., 1959. The nitrogen cycle in Long Island Sound. Bull. Bingham oceanogr. Coll., Vol. 17, pp. 31–65.Google Scholar
Johannes, R. E. & Satomi, M., 1967. Measuring organic matter retained by aquatic invertebrates. J. Fish. Res. Bd Can., Vol. 24, pp. 2467–71.CrossRefGoogle Scholar
Johannes, R. E. & Webb, K. L., 1965. Release of dissolved amino-acids by marine zooplankton. Science, N.Y., Vol. 150, pp. 76–7.CrossRefGoogle ScholarPubMed
Matheson, A. T. & Tattrie, B. L., 1964. A modified Yemm and Cocking ninhydrin reagent for peptidase assay. Can. J. Biochem., Vol. 42, pp. 95–103.CrossRefGoogle Scholar
Webb, K. L. & Johannes, R. E., 1967. Studies on the release of dissolved free amino-acids by marine zooplankton. Limnol. Oceanogr., Vol. 12, pp. 376–82.CrossRefGoogle Scholar
Webb, K. L. & Johannes, R. E., 1969. Do marine crustaceans release dissolved amino acids? Comp. Biochem. Physiol., Vol. 29, pp. 875–8.CrossRefGoogle Scholar
Welsh, J. H. & Smith, R. I., 1960. Laboratory Exercises in Invertebrate Physiology. Rev. ed., pp. 187. Minneapolis: Burgess Publishing Co.Google Scholar