Hostname: page-component-cd9895bd7-hc48f Total loading time: 0 Render date: 2024-12-23T07:51:13.638Z Has data issue: false hasContentIssue false
  • English
  • Français

Ionic regulation in the squat lobster Galathea squamifera, with special reference to the relationship between potassium metabolism and the accumulation of radioactive caesium

Published online by Cambridge University Press:  11 May 2009

G. W. Bryan
G. W. Bryan
Affiliation:
The Plymouth Laboratory
Get access Rights & Permissions [Opens in a new window]

Extract

The absorption of radioactive Cs from sea water in relation to K metabolism has been examined in the squat lobster Galathea squamifera. A general study has been made of the ability of Galathea to carry out osmotic and ionic regulation as a comparison with better known decapod crustaceans which have previously been used for radioactive Cs experiments.

Galathea appears to be a truly marine decapod in that it is probably unable to osmoregulate and the body surface is very permeable to water and to Cs and Kions. Despite this high permeability, Galathea is able to regulate K and radioactive Cs at blood plasma levels which are 1.3 and 1.1 times those of sea water. The Na and Cl concentrations in the plasma are not regulated and the Ca concentration is variable, but Mg and SO4 are maintained at concentrations below those of sea water. Urinary excretion does not assist in the conservation of K or radioactive Cs in the plasma but assists in removing Mg and SO4.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 45 , Issue 1 , March 1965 , pp. 97 - 113
Copyright
Copyright © Marine Biological Association of the United Kingdom 1965

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.)

References

Bryan, G. W., 1961. The accumulation of radioactive Cs in crabs. J. mar. biol. Ass. U.K., Vol. 41, pp. 551–75CrossRefGoogle Scholar
Bryan, G. W. 1963. The accumulation of 137Cs by brackish water invertebrates and its relation to the regulation of potassium and sodium. J. mar. biol. Ass. U.K., Vol. 43, pp. 541–65.CrossRefGoogle Scholar
Bryan, G. W. & Ward, E., 1962. Potassium metabolism and the accumulation of 137caesium by decapod Crustacea. J. mar. biol. Ass. U.K., Vol. 42, pp. 199–241.CrossRefGoogle Scholar
Conway, E. J., 1940. Microdiffusion Analysis and Volumetric Error. New YorkD. Van Nostrand.Google Scholar
Duval, M., 1925. Recherches physico-chemique et physiologiques sur le milieu intérieur des animaux aquatiques. Modifications sous l'influence du milieu extérieur. Ann. Inst. oceanogr., Vol. 2, pp. 232–407.Google Scholar
Folin, O. & Wu, H., 1919. A system of blood analysis. J. biol. Chem., Vol. 38, pp. 81–110.CrossRefGoogle Scholar
Folson, T. R., Feldman, C. & Rains, T. C, 1964. Variation of cesium in the ocean. Science, N.S., Vol. 144, pp. 538–39.CrossRefGoogle Scholar
Nicol, E. A. T., 1932. The feeding habits of the Galatheidea. J. mar. biol. Ass. U.K., Vol. 18, pp. 87–106.CrossRefGoogle Scholar
Orange, M. & Rhein, H. C, 1951. Microestimation of magnesium in body fluids. J. biol. Chem., Vol. 189, pp. 379–86.CrossRefGoogle ScholarPubMed
Pike, R. B., 1947. Galathea. Mem. Lpool mar. biol. Comm., No. 34.Google Scholar
Robertson, J. D., 1960. Osmotic and ionic regulation. In The Physiology of Crustacea Vol. 1, pp. 317–39.Google Scholar
Schwabe, E., 1933. Über die osmoregulation verschiedener Krebse (Malacostracen). Z. vergl. Physiol., Bd. 19, pp. 183–236.CrossRefGoogle Scholar
Shaw, J., 1958. Further studies on ionic regulation in the muscle fibres of Cardnus maenas. J. exp. Biol., Vol. 35, pp. 902–19.CrossRefGoogle Scholar
Spencer, B., 1960. The ultramicro determination of inorganic sulphate. Biochem. J., Vol. 75, pp. 435–40.CrossRefGoogle Scholar