Difference between revisions of "Effects of xenoestrogens in eels"

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<u>'''Content of the study'''</u>
 
<u>'''Content of the study'''</u>
  
This study investigated the amount of endocrine disruption in European eels of Flemish surface waters. For this [[vitellogenins]] were analyzed. Vitellogenins are proteins which are normally only produced by mature female fish. When juvenile or male fish are exposed to [[endocrine disrupting compounds]] they can also produce these proteins.
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This study investigated the amount of endocrine disruption in European eels of Flemish surface waters. For this the blood of the eels was analysed for the presence of [[vitellogenins]]. Vitellogenins are proteins which are normally only produced by mature female fish. When juvenile or male fish are exposed to [[endocrine disrupting compounds]] they can also produce these proteins.
  
 
<u>'''Main results of the study'''</u>
 
<u>'''Main results of the study'''</u>

Revision as of 14:33, 6 July 2009

Vitellogenin content in Euopean eel (Anguilla anguilla) in Flanders, Belgium

Context of the study

It's known that xenobiotic substances can have effects on the endocrine system of animals. These endocrine disrupting compounds mainly come from sewage treatment effluents. However little is known the effects of these compounds on fish in Flemish waters. Through it's carnivorous lifestyle the European eel accumulates many different chemicals throughout his life. During a certain phase of his life (the yellow eel phase) the eel doesn't migrate. Therefore, analysis of residues from eels in this phase of his life would reflect the quality of the environment.

Content of the study

This study investigated the amount of endocrine disruption in European eels of Flemish surface waters. For this the blood of the eels was analysed for the presence of vitellogenins. Vitellogenins are proteins which are normally only produced by mature female fish. When juvenile or male fish are exposed to endocrine disrupting compounds they can also produce these proteins.

Main results of the study