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VII.—On Migrations of Lymnœa peregra (Müller) on the Shores of Loch Lomond*

Published online by Cambridge University Press:  11 June 2012

W. Russell Hunter
W. Russell Hunter
Affiliation:
Department of Zoology, University of Glasgow
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Synopsis

Seasonal changes in the distribution of Lymnœa peregra (Müller) on a gently sloping beach of Loch Lomond have been studied in detail, with particular reference to the effects of the changes in water level which occur. At lower water temperatures the distribution can be correlated with the availability of food. At higher water temperatures the respiratory needs of adult snails cause them to remain close to the water's edge, even in the absence of food. This is not always true of young snails. Measurement of the fæces produced by such adult snails gives further evidence that a degree of starvation can occur for short periods in the summer months.

Comparative data on the characteristics of the physical environment and the general distribution of gastropods in Loch Lomond are given, and the study discussed in relation to previous work on the littoral ecology of large lakes.

Type
Research Article
Information
Proceedings of the Royal Society of Edinburgh, Section B: Biological Sciences , Volume 65 , Issue 1 , 1953 , pp. 84 - 105
Copyright
Copyright © Royal Society of Edinburgh 1953

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References

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