期刊
JOURNAL OF FISH BIOLOGY
卷 84, 期 5, 页码 1574-1581出版社
WILEY-BLACKWELL
DOI: 10.1111/jfb.12357
关键词
elasmobranchs; isotopic differences; maternal influence; trace metal
资金
- LIENSs
- CPER 13 (Contrat de Projet Etat-Region)
Stable carbon (C-13) and nitrogen (N-15) isotopic values and total mercury (Hg) concentrations were analysed in muscle and liver of mothers and embryos of two aplacental shark species, Squalus megalops and Centrophorus moluccensis. Embryos of the two species had similar or lower isotopic values than their respective mothers, the only exception being for C-13, which was higher in the liver of C. moluccensis embryos than in their mothers. Hg concentrations were systematically lower in embryos compared with their mothers suggesting a low transfer of this element in muscle and liver.
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