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The effect of concentration of suspension and inert material on the assimilation of algae by three bivalves

Published online by Cambridge University Press:  11 May 2009

R. L. Foster-Smith
R. L. Foster-Smith*
Affiliation:
The Dove Marine Laboratory, Cullercoats, Northumberland
*
*Present address: Department of Zoology, Manchester University, Manchester M13 9PL.
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Extract

Assimilation efficiencies reported for bivalves vary, but different experimental conditions, in particular the concentration of the suspension at which the animals are fed, may affect the values found. Widdows & Bayne (1971) determined the assimilation efficiency for Mytilus edulis when fed Tetraselmis and they found that efficiencies decreased with increasing concentration of cells. Allen (1962) fed radioactively labelled Phaeodactylum to Mya arenaria and Venus striatula and suggested that the amount of P recovered in the faeces was proportional to the amount of algae ingested rather than to concentration of suspension directly. However, Winter (1969) concluded that for Arctica islandica and Modiolus modiolus there was no relation between assimilation efficiency and concentration of algae.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 55 , Issue 2 , May 1975 , pp. 411 - 418
Copyright
Copyright © Marine Biological Association of the United Kingdom 1975

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References

Allen, J. A., 1962. Preliminary experiments on the feeding and excretion of bivalves using Phaeodactylum labelled with32P. Journal of the Marine Biological Association of the United Kingdom, 42, 609–23.CrossRefGoogle Scholar
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