Over het archief
Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.
Dit archief wordt uitgebouwd en beheerd volgens de principes van de Open Access Movement, en het daaruit ontstane Open Archives Initiative.
Basisinformatie over ‘Open Access to scholarly information'.
Effects of 17α-ethinylestradiol on sexual development of the amphipod Hyalella azteca
Vandenbergh, G.F.; Adriaens, D.; Verslycke, T.; Janssen, C.R. (2003). Effects of 17α-ethinylestradiol on sexual development of the amphipod Hyalella azteca. Ecotoxicol. Environ. Saf. 54(2): 216-222. https://dx.doi.org/10.1016/S0147-6513(02)00030-1
In: Ecotoxicology and Environmental Safety. Academic Press/Elsevier: Amsterdam, Netherlands etc. ISSN 0147-6513; e-ISSN 1090-2414, meer
|  |
| Auteurs | | Top |
- Vandenbergh, G.F.
- Adriaens, D., meer
- Verslycke, T., meer
- Janssen, C.R., meer
|
|
|
| Abstract |
The effects of the synthetic estrogen 17alpha-ethinylestradiol (EE) on sexual development of the freshwater amphipod Hyalella azteca was investigated. Organisms were exposed in a multigeneration experiment to EE concentrations ranging from 0.1 to 10 microg/L and the development of both external and internal sexual characteristics were studied. Second-generation male H. azteca exposed from gametogenesis until adulthood to 0.1 and 0.32 microg EE/L developed significantly smaller second gnathopods. The sex ratio of the populations exposed to EE for more than two generations tended, although not statistically significantly, to be in favor of females. Histological aberrations of the reproductive tract, i.e., indications of hermaphroditism, disturbed maturation of the germ cells, and disturbed spermatogenesis, of post-F1-generation males were observed in all EE exposures. These findings provide evidence that sexual development of H. azteca is affected by exposure to sublethal concentrations of EE. |
IMIS is ontwikkeld en wordt gehost door het VLIZ.
