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Spectral composition of the light of polynoid worms

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 spectral composition of the light of four species of polynoid worms has been measured, viz. Harmothoë longisetis, Gattyana cirrosa, Polynoë scolopendrina and Lagisca extenuata. The method involved the use of coloured spectral filters and two multiplier phototubes. The spectral emission curves of the four species are similar. They are asymmetrical in shape, prolonged towards longer wavelengths, with maxima at about 515 mμ (510–520 mμ.). Values for luminous efficiency are calculated (ratio of luminous flux to radiant flux); for human scotopic vision (λmax at 505 mμ), efficiency is 61%.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 36 , Issue 3 , November 1957 , pp. 529 - 538
Copyright
Copyright © Marine Biological Association of the United Kingdom 1957

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