Evaluation of changes in the adaptive physiology of shore crabs (Carcinus maenas) as an indicator of pollution in estuarine environments |
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Authors: | S D Bamber M H Depledge |
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Institution: | (1) Plymouth Environmental Research Centre, University of Plymouth, Drake Circus, Plymouth PL4 8AA, Devon, England, GB |
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Abstract: | The major objective of this study was to determine whether there were significant differences in the physiological responses
of shore crabs (Carcinus maenas L.) sampled from environments with varying degrees of contamination. Crabs collected from a range of sites were subjected
to a standardised, environmentally realistic sequence of physiological challenges in the laboratory to determine if such measures
would prove sensitive enough to differentiate among the sites. Heart-rate changes and osmoregulatory ability were measured.
The results indicated that changes in osmoregulatory ability were sufficiently sensitive to detect differences in environmental
contamination. The utility of physiological measurements in environmental monitoring is discussed.
Received: 2 July 1997 / Accepted: 10 July 1997 |
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