Effect of various environmental calcium levels on the uptake of cobalt by the common carp, Cyprinus carpio
Comhaire, S.; Blust, R.; Van Ginneken, L.; D'haeseleer, F.; Vanderborght, O.L.J. (1993). Effect of various environmental calcium levels on the uptake of cobalt by the common carp, Cyprinus carpio, in: Chardon, M. et al. Third Belgian Congress of Zoology, 5-6 November 1993. Belgian Journal of Zoology, 123(Suppl. 1): pp. 9-10
In: Chardon, M.; Goffinet, G. (Ed.) (1993). Third Belgian Congress of Zoology, 5-6 November 1993. Belgian Journal of Zoology, 123(Suppl. 1). University of Liège: Liège. 109 pp., more
In: Belgian Journal of Zoology. Koninklijke Belgische Vereniging voor Dierkunde = Société royale zoologique de Belgique: Gent. ISSN 0777-6276; e-ISSN 2295-0451, more
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Document type: Summary
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| Authors | | Top |
- Comhaire, S.
- Blust, R., more
- Van Ginneken, L.
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- D'haeseleer, F.
- Vanderborght, O.L.J.
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| Abstract |
The acclimation and exposure effect of various external calcium levels on cobalt uptake by the common carp, Cyprinus carpio, was studied in chemically defined freshwater. For this purpose fish (2-6 g) were acclimated during a 16 day period to different external calcium concentrations ranging from 0.1 to 10 mM. Cobalt uptake experiments were performed with fish exposed in water with the same range of environmental calcium levels. The acclimation and the uptake experiments were conducted at a temperature of 25°C and a pH of 8.00. Tracers of cobalt (57Co) and calcium (45Ca) were used to study the uptake of both metals from the testwater during a 3 hour exposure of the fish. Cobalt uptake by whole fish, gills and blood decreases with increasing environmental calcium concentrations in both the acclimation and the exposure water. A positive correlation between the uptake of cobalt and calcium tracers was found. However, if we compare the total uptake of cobalt with the total uptake of calcium, no relation was found between the uptake of both elements. Although there is a clear effect of environmental calcium on the cobalt uptake, the nature of this interaction remains to be elucidated. |
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