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Effects of Temperature on the Deformability of Red Blood Cells of Rainbow Trout and Ray

Published online by Cambridge University Press:  11 May 2009

G. M. Hughes  and
Y. Kikuchi
G. M. Hughes
Affiliation:
Research Unit for Comparative Animal Respiration, University of Bristol, Woodland Road, Bristol BS8 1UG
Y. Kikuchi
Affiliation:
Research Unit for Comparative Animal Respiration, University of Bristol, Woodland Road, Bristol BS8 1UG
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Extract

When red blood cells are subjected to mechanical stresses, they change shape with very little resistance. Such deformability of erythrocytes plays a crucial role in their function and survival in the circulation since they must undergo large deformation whenever they pass through narrow capillary vessels. While this mechanical characteristic of erythrocytes has been attributed to their unique cellular structure, it has also been shown that considerable alterations in this property result from changes in cellular metabolism and in surrounding plasma physicochemistry (Weed, LaCelle & Merrill, 1969; Kikuchi & Koyama, 1984a, b). It might be supposed, therefore that red blood cell deformability would be modified, when animals are exposed to different environmental conditions, with significant effects on their acclimatization or survival under the varied conditions. However, little is known of this aspect of fish cardiovascular physiology.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 68 , Issue 4 , November 1988 , pp. 619 - 625
Copyright
Copyright © Marine Biological Association of the United Kingdom 1988

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References

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