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Marine Biology

, Volume 114, Issue 2, pp 253–257 | Cite as

Mechanisms of copper toxicity in the shore crab, Carcinus maenas

I. Effects on Na,K-ATPase activity, haemolymph electrolyte concentrations and tissue water contents
  • Jan Ivan Hansen
  • Tariq Mustafa
  • Michael Depledge
Article

Abstract

This study was initiated to further elucidate mechanisms responsible for copper toxicity in the hyperregulating shore crab, Carcinus maenas (L.). Crabs, collected in the Odense Fjord, Denmark between September 1989 and May 1990, were exposed to 10 ppm copper(II)chloride in 10 ppt salinity at 15°C for up to 1 wk prior to measuring gill Na,K-ATPase activity, haemolymph sodium and potassium concentrations and fr. wt/dry wt ratios. Copper exposure reduced haemolymph sodium concentration by 40% and gill Na,K-ATPase activity by 50 to 60% after 1 wk. Haemolymph potassium levels exhibited variable responses. It is concluded that inhibition of gill Na,K-ATPase activity was primarily responsible for reductions in haemolymph electrolyte levels but that this was possibly not the prineiple cause of morbidity and mortality.

Keywords

Sodium Copper Chloride Potassium Toxicity 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag 1992

Authors and Affiliations

  • Jan Ivan Hansen
    • 1
  • Tariq Mustafa
    • 1
  • Michael Depledge
    • 1
  1. 1.Institute of BiologyOdense UniversityOdense MDenmark

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