Marine Biology

, Volume 66, Issue 1, pp 53–58 | Cite as

Formation of metallothioneins in relation to accumulation of cadmium in the common mussel Mytilus edulis

  • K. Köhler
  • H. U. Riisgård
Article

Abstract

Accumulation rates of Cd have been studied in the common mussel Mytilus edulis L. under different laboratory conditions. Semi-static and through-flow experiments were carried out at Cd concentrations of 200 ppb and 50/100 ppb in the water, respectively. A linear uptake of Cd throughout the experimental periods of 36 or 124 d was found in all experiments. The accumulation rate was 3.10 ppm d-1 at 50 ppb in the through-flow water experiment, 4.1 ppm d-1 in starved and 6.6 ppm d-1 in fed mussels in the semi-static experiments with 200 ppb Cd in the water. The Cd-accumulation rate in various fractions of soft parts decreased in the order: body>mantle>muscles. Elution patterns obtained from gel-filtrations showed an increasing amount of Cd-binding proteins (metallothioneins) when the body burden of Cd increased. The Cd content in the body fraction of mussels transferred to clean water for 42 d after first being exposed to Cd during 124 d decreased from 564 ppm on a dry weight basis to 417 ppm while the fraction of Cd bound to metallothioneins rose from 22 to 78% during the same period.

Keywords

Cadmium Experimental Period Accumulation Rate Clean Water Weight Basis 
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 1982

Authors and Affiliations

  • K. Köhler
    • 1
  • H. U. Riisgård
    • 1
  1. 1.Marine Pollution LaboratoryNational Agency of Environmental ProtectionCharlottenlundDenmark

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