Document Detail

Behavioral changes in fish exposed to phytoestrogens.
MedLine Citation:
PMID:  16584819     Owner:  NLM     Status:  MEDLINE    
We investigated the behavioral effects of exposure to waterborne phytoestrogens in male fighting fish, Betta splendens. Adult fish were exposed to a range of concentrations of genistein, equol, beta-sitosterol, and the positive control 17beta-estradiol. The following behaviors were measured: spontaneous swimming activity, latency to respond to a perceived intruder (mirror reflection), intensity of aggressive response toward a perceived intruder, probability of constructing a nest in the presence of a female, and the size of the nest constructed. We found few changes in spontaneous swimming activity, the latency to respond to the mirror, and nest size, and modest changes in the probability of constructing a nest. There were significant decreases, however, in the intensity of aggressive behavior toward the mirror following exposure to several concentrations, including environmentally relevant ones, of 17beta-estradiol, genistein, and equol. This suggests that phytoestrogen contamination has the potential to significantly affect the behavior of free-living fishes.
Ethan D Clotfelter; Alison C Rodriguez
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2006-04-11
Journal Detail:
Title:  Environmental pollution (Barking, Essex : 1987)     Volume:  144     ISSN:  0269-7491     ISO Abbreviation:  Environ. Pollut.     Publication Date:  2006 Dec 
Date Detail:
Created Date:  2006-09-18     Completed Date:  2006-12-07     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8804476     Medline TA:  Environ Pollut     Country:  England    
Other Details:
Languages:  eng     Pagination:  833-9     Citation Subset:  IM    
Department of Biology, Amherst College, Amherst, MA 01002, USA.
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MeSH Terms
Aggression / drug effects
Behavior, Animal / drug effects*
Estradiol / adverse effects
Fishes / physiology*
Genistein / adverse effects
Isoflavones / adverse effects
Nesting Behavior / drug effects
Phytoestrogens / adverse effects*
Sexual Behavior, Animal / drug effects
Sitosterols / adverse effects
Water Pollutants, Chemical / adverse effects*
Reg. No./Substance:
0/Isoflavones; 0/Phytoestrogens; 0/Sitosterols; 0/Water Pollutants, Chemical; 446-72-0/Genistein; 50-28-2/Estradiol; 531-95-3/equol; 5779-62-4/sitosterol

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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