Pflügers Archiv

, Volume 329, Issue 2, pp 186–190 | Cite as

The solubility of carbon dioxide in elasmobranch plasma between 10°C and 22°C

  • K. Pleschka
  • I. Wittenbrock
Short Communications and Technical Notes


The CO2 solubility coefficient\(\alpha _{{\text{CO}}_{\text{2}} }\) has been measured as a function of temperature for two species of dogfish (Scyliorhinus canicula and Scyliorhinus stellaris). Determinations were made at 10°C, 13°C, 16°C, 19°C and 22°C. As there was no difference in CO2 solubility between the plasmas of the two species, a common solubility curve was calculated for the temperature range between 8°C and 25°C. With decreasing temperature the solubility for CO2 increased so that the slope of the solubility curve was nearly equal to that of warm blooded plasma, of sea water and of pure water. In comparison with pure water and ox plasma, the solubility of CO2 in elasmobranch plasma was significantly lower as expected from its higher ionic strength but nearly the same as for sea water.


CO2 Solubility pK′ Temperature Elasmobranch Plasma 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. Albers, C.: Acid-Base-Balance. In: V. S. Hoar and D. J. Randall (Edit.): Fish Physiology, Vol. 4, pp. 173–208. New York-London: Academic Press 1970.Google Scholar
  2. —, Pleschka, K.: Effect of temperature on CO2 transport in elasmobranch blood. Resp. Physiol.2, 261–273 (1967).Google Scholar
  3. Bartels, H., Wrbitzky, R.: Bestimmung des CO2-Absorptionskoeffizienten zwischen 15 und 38°C in Wasser und Plasma. Pflügers Arch. ges. Physiol.271, 162–168 (1960).Google Scholar
  4. Riley, J. P., Skirrow, G.: Chemical Oceanography, Vol. 1, p. 650. London-New York: Academic Press 1965.Google Scholar
  5. Van Slyke, D. D., Plazin, J.: Micromanometric Analysis. Baltimore: The Williams and Wilkins Comp. 1961.Google Scholar
  6. —, Sendroy, J., Hastings, A. B., Neill, J. M.: Studies of gas and electrolyte equilibria in blood. X. The solubility of carbon dioxide at 38°C in water, salt solution, serum, and blood cells. J. biol. Chem.78, 765–799 (1928).Google Scholar

Copyright information

© Springer-Verlag 1971

Authors and Affiliations

  • K. Pleschka
    • 1
  • I. Wittenbrock
    • 1
  1. 1.W. G. Kerckhoff-Institut der Max-Planck-GesellschaftBad Nauheim

Personalised recommendations