Enantiomer Ratios of Chlordane Congeners Are Gender Specific in Cod (Gadus morhua) from the Barents Sea
Autor: | Sonja Skopp, Ivan C. Burkow, Michael Oehme, Heidi Karlsson |
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Rok vydání: | 2000 |
Předmět: | |
Zdroj: | Environmental Science & Technology. 34:2126-2130 |
ISSN: | 1520-5851 0013-936X |
DOI: | 10.1021/es991288z |
Popis: | The enantiomer ratios of some chlordane congeners were found to be gender-specific in cod from the Barents Sea. Concentrations of U81, U82, trans-chlordane, MC5, cis-chlordane, MC7, trans-nonachlor, MC6, and cis-nonachlor as well as the metabolites cis-heptachlorepoxide and oxychlordane were determined. Female cod preferentially accumulated (-)-cis-chlordane and (-)-trans-chlordane, while male cod had an excess of (+)-cis-chlordane and (+)-trans-chlordane. A significant difference was also observed for MC6. Only chlordane congeners without a chlorine atom at the C3 position showed gender-specific enantiomer ratios. No exception was found within the sample set of 16 individuals. Furthermore, the isomer and enantiomer patterns were very similar in muscle tissue, gonads, and liver. |
Databáze: | OpenAIRE |
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