Influence of ploidy and metal-metal interactions on the accumulation of Ag, Cd, and Cu in oysters Crassostrea gigas thunberg

Type Article
Date 2005
Language English
Author(s) Amiard Jean-Claude1, Perrein Ettajani H2, Gerard Andre3, Baud Jean-Pierre4, Amiard Triquet C1
Affiliation(s) 1 : ISOMer, GDR 1117, CNRS, SMAB,Serv Ecotoxicol, F-44322 Nantes 3, France.
2 : IRFA, CEREA, Angers, France.
3 : IFREMER, Lab Genet & Pathol, La Tremblade, France.
4 : IFREMER, Lab Conchylicole Pays Loire, Bouin, France.
Source Archives of Environmental Contamination and Toxicology (0090-4341) (Springer), 2005 , Vol. 48 , N. 1 , P. 68-74
DOI 10.1007/s00244-003-0180-8
WOS© Times Cited 10
Keyword(s) Oyster culture, Metal bioaccaumulation, Polyploidy
Abstract The present study was designed to compare the response to contaminants in diploid with triploid specimens of the oyster Crassostrea gigas. The reproduction investment in bivalve molluscs has priority on somatic growth. Thus, genetic sterilization by triploidy induction enables the energy flux to be directed toward somatic growth and glucide storage. Bioaccumulation was examined for Ag (10 mug/L), Cd (10 mug/L), and Cu (30 mug/L) to determine if the response to metals follows similar patterns in diploid (2n) and triploid (3n) groups. The effect of ploidy was also evaluated as a function of dry weight of soft tissue and condition index. Moreover, the reciprocal influence of these metals on their incorporation was studied. The results showed that the major factor governing the degree of metal bioaccumulation by oysters is the nature of the metal introduced in the experimental medium. Thus, the uptake of Cd is proportionally more important than in the case of Ag and even more in Cu. For Cu-treated samples, the influence of ploidy on weight and metal body burden (and Cu concentration) was not significant, whereas for Ag and Cd, significant differences according to genetic type were evidenced by higher tissue weight and lower concentrations in triploid than diploid specimens. Metal-metal interactions study especially showed a reciprocal antagonism between Ag and Cu.
Full Text
File Pages Size Access
publication-791.pdf 28 218 KB Open access
Top of the page

How to cite 

Amiard Jean-Claude, Perrein Ettajani H, Gerard Andre, Baud Jean-Pierre, Amiard Triquet C (2005). Influence of ploidy and metal-metal interactions on the accumulation of Ag, Cd, and Cu in oysters Crassostrea gigas thunberg. Archives of Environmental Contamination and Toxicology, 48(1), 68-74. Publisher's official version : , Open Access version :