|
|
|
|
| |
|
|
| Geffard, A; Geffard, Olivier; His, Edouard; Amiard, Jc. |
| The bioavailability of Cd, Cu and Zn from a metal-contaminated sediment was studied using Mytilus galloprovincialis embryos and larvae exposed to sediment elutriates, The elutriate concentrations tested were always lower than the threshold at which abnormal larval development appears. The Cd, Cu and Zn contents of the sediment, of the elutriate and of the larvae, as well as the larval growth, the condition index (CI), and the induction of metallothionein (NIT) in the larvae were measured. The Cl was only affected after 96 h of exposure, principally at the highest elutriate concentration (25%, corresponding to 0.1435 mug Cd l(-1) and 14 mug Zn l(-1)). Cd, Cu and Zn bioaccumulation was observed (48 and 96 h), in whole larvae as well as in the cytosolic... |
| Tipo: Text |
Palavras-chave: Sediment elutriate; Mytilus galloprovincialis larvae; Metal bioaccumulation; Metallothionein. |
| Ano: 2002 |
URL: http://archimer.ifremer.fr/doc/00000/10119/7598.pdf |
| |
|
|
| Geffard, A; Geffard, O; Amiard, J; His, Edouard; Amiard Triquet, C. |
| The bioavailability of Cd, Cu, Zn, and Pb from two metal-contaminated sediments (Bidassoa and Dunkerque) was studied using Crassostrea gigas larvae exposed to sediment elutriates. The metal contents within the sediments, the larvae and larval growth, the condition index, and the induction of metallothionein in the larvae were measured. The larval growth and condition index were only affected after exposure to the highest elutriates concentration (5 to 25%) from the most contaminated sediment (Dunkerque). Bioaccumulation of all metals was observed in larvae exposed to Dunkerque elutriatre; only Cu bioaccumulation was observed in the Bidassoa elutriate. The results from larvae exposed to both sediment elutriates show a strong correlation between... |
| Tipo: Text |
Palavras-chave: Metallothionein; Metal bioaccumulation; Larval growth; Crassostrea gigas larvae; Sediment elutriates. |
| Ano: 2007 |
URL: http://archimer.ifremer.fr/doc/2007/publication-4748.pdf |
| |
|
|
|
