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Fatigue of the luminescent response of Chaetopterus

Published online by Cambridge University Press:  11 May 2009

J. A. C. Nicol
J. A. C. Nicol
Affiliation:
The Plymouth Laboratory
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Extract

When stimulated in some suitable manner Chaetopterus secretes a luminescent material into the surrounding sea water. The luminescent secretion is discharged fromglands which are widely dispersed over the surface of the animal; the most conspicuous are two glandular patches on the dorsal surface of segment XII. Secretory materialis forced out of the cells by some contractile process; discharge is not merely theresult of secretion pressure. Under repetitive stimulation the intensity of the luminescent response decreases owing to the intervention of fatigue. Fatigue has been interpreted as a gradual exhaustion of luminescent material in the glandular cells (Nicol, 1952b,c).The present investigation seeks to analyse the onset and progress of fatigue in greater detail.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 33 , Issue 1 , February 1954 , pp. 177 - 186
Copyright
Copyright © Marine Biological Association of the United Kingdom 1954

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