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Luminescence in Polynoids IV. Measurements of Light Intensity

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

The light energy emitted in a flash by single elytra of two polynoid worms has been measured, viz. Acholoë astericola and Lagisca extenuata. Maximal emission occurs at 515 mμ. Mean values for light intensity per flash from 1 elytrum are: Lagisca, 1·8 × 10−10 μJ/cm2 receptor surface at I m ; Acholoë, I·II × 10−8 μJ/cm2 receptor surface at I m. The light emitted in I flash by a single photocyte of Lagisca is 0·12 × 10−12 μJ/cm2 receptor surface at I m. It is estimated that the light from I elytrum of Lagisca could be seen by the dark-adapted human eye at 1·2 m in air.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 37 , Issue 1 , February 1958 , pp. 33 - 41
Copyright
Copyright © Marine Biological Association of the United Kingdom 1958

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