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Effect of low temperature on oxygen uptake and haemolymph ions in the sandhopper Talitrus saltator (Crustacea: Amphipoda)

Published online by Cambridge University Press:  11 May 2009

John I. Spicer
Affiliation:
Department of Animal & Plant Sciences, University of Sheffield, Sheffield, S10 2UQ
David Morritt
Affiliation:
Department of Animal & Plant Sciences, University of Sheffield, Sheffield, S10 2UQ University Marine Biological Station, Millport, Isle of Cumbrae, Argyll, KA28 OEG
Alan C. Taylor
Affiliation:
Department of Zoology, University of Glasgow, Glasgow, G12 8QQ

Abstract

The common sandhopper of European shores, Talitrus saltator (Montagu, 1808) (Crustacea: Amphipoda) remains inactive in high shore burrows for much of the winter in more northern latitudes. In the laboratory exposure to low temperature (2 or 3°C) was accompanied by the onset of inactivity, a precipitous decrease in oxygen uptake and a marked increase in the concentrations of the major ions in the haemolymph. The increase in the concentration of Mg2+ in the haemolymph was particularly pronounced. The possibility that Mg2+ ions are implicated in bringing about a reduction in activity and oxygen uptake is discussed.

Type
Research Article
Copyright
Copyright © Marine Biological Association of the United Kingdom 1994

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