Toxicity of Mercury and Selenium to the Eggs of Carp (Cyprinus carpio)
- 1 October 1974
- journal article
- Published by Oxford University Press (OUP) in Transactions of the American Fisheries Society
- Vol. 103 (4) , 822-825
- https://doi.org/10.1577/1548-8659(1974)103<822:tomast>2.0.co;2
Abstract
Antagonistic interactions of mercury and selenium have been demonstrated in vivo, but interactions under environmental conditions that might affect the toxicity of either element have not. We exposed carp eggs to trace amounts of mercury and selenium to test for an effect on hatchability. Test concentrations of Hg(II) (from HgCl2 and SeO3i2‐ (from SeO2 were 1, 2, 3, 4, and 5 μg/g each, and each possible combination of these concentrations. No eggs hatched when incubated in ⩾4 μg/g Hg(II), but up to 5 μg/g SeO32‐ had no effect on hatchability. Three μg/g was the lowest concentration of Hg(II) that had an effect on hatchability. A greater depression of hatchability was noted in eggs exposed to mixtures of mercury and selenium than in those eggs exposed to these elements singly. These results demonstrate synergistic toxic effects of mercury and selenium.This publication has 0 references indexed in Scilit: