Photoperiodic Stimulation of Egg Laying in the Land Snail Helix aspersa

WE report here early results of an investigation of the relation between photoperiod and various aspects of the physiology and reproduction of the land snail, Helix aspersa . It was suggested recently that maturation of gametes may be initiated by annual temperature fluctuations and is perhaps corre...

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Bibliographic Details
Published in:Nature (London) 1966-12, Vol.212 (5070), p.1582-1582
Main Authors: STEPHENS, GWEN J, STEPHENS, GROVER C
Format: Article
Language:English
Subjects:
Humanities and Social Sciences
letter
multidisciplinary
Science
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Summary:WE report here early results of an investigation of the relation between photoperiod and various aspects of the physiology and reproduction of the land snail, Helix aspersa . It was suggested recently that maturation of gametes may be initiated by annual temperature fluctuations and is perhaps correlated with changes in illumination. There does not seem to be much information on the influence of light. Induction of egg laying in the pulmonate pond snail Lymnaea palustris given light periods of 13.5 h or more has been reported and interruption of the dark period on a short day schedule is also effective 2 .
ISSN:0028-0836
1476-4687
DOI:10.1038/2121582a0