Murdoch University Research Repository

Welcome to the Murdoch University Research Repository

The Murdoch University Research Repository is an open access digital collection of research
created by Murdoch University staff, researchers and postgraduate students.

Learn more

Oxygen dissociation curves of the blood of larval and adult lampreys (Lampetra fluviatilis)

Bird, D.J., Lutz, P.L. and Potter, I.C. (1976) Oxygen dissociation curves of the blood of larval and adult lampreys (Lampetra fluviatilis). Journal of Experimental Biology, 65 . pp. 449-458.

PDF - Published Version
Download (702kB)
Free to read:
*No subscription required


1. An electrolytic method was used to plot the oxygen dissociation curves of whole blood from both the larva and adult of the lamprey Lampetra fluviatilis at a temperature of 10 degrees C and over a pH range of 6-5-8-1. 2. Larval blood has a far higher affinity for oxygen than that of adults, the respective calculated P50's at a pH of 7–75 being 1-9 and 10-7 mmHg. 3. The high affinity of larval blood is of use to a relatively sedentary animal living in burrows, and the increased oxygen delivery pressure brought about by the shift of the curve to the right in the adult is of advantage to an animal exhibiting greater activity. 4. The n value obtained from the Hill plots increased with increasing saturation and were lower in larvae than adults at the same level of blood saturation. 5. The Bohr effect in larvae at 10 degrees C over the pH range 6-5-8-1 was --0-25, a value which did not differ significantly from the −0-22 found in adults.

Item Type: Journal Article
Murdoch Affiliation(s): School of Environmental and Life Sciences
Publisher: Company of Biologists
Copyright: © 1976 by Company of Biologists
Item Control Page Item Control Page


Downloads per month over past year