Zusammenhang zwischen Schadstoffen aus der Elbe und missgebildeten Fischembryonen in der Deutschen Bucht = Relation between toxic compounds from River Elbe and malformed embryos of fish in the German Bight
Dethlefsen, V.; von Westernhagen, H.; Haarich, M. (2001). Zusammenhang zwischen Schadstoffen aus der Elbe und missgebildeten Fischembryonen in der Deutschen Bucht = Relation between toxic compounds from River Elbe and malformed embryos of fish in the German Bight. Inf. Fischwirtsch. Fischereiforsch. 48(1): 19-23
In: Informationen für die Fischwirtschaft. Bundesforschungsanstalt für Fischerei: Hamburg. ISSN 0020-0344, more
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| Authors | | Top |
- Dethlefsen, V.
- von Westernhagen, H., more
- Haarich, M.
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| Abstract |
The trends of malformation prevalence in embryos of dab, Limanda limanda, in the southern North Sea after the year 1990 mirrored the drop in major pollutants in the rivers draining into the German Bight. Despite this general decline we detected a pollution event in the southern North Sea in winter 1995/1996 employing the prevalence of malformations in dab embryos as an indicator. An abrupt rise in malformation prevalence in the embryos of dab, corresponded to a dramatic increase in DDT levels in parent fish from the same area, indicating a hitherto unnoticed introduction of considerable quantities of DDT into the system. This input could be traced back to discharges of unknown origen into the River Elbe. |
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