Pesticides mimic estrogen in shellfish | Science News



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Pesticides mimic estrogen in shellfish

1:17pm, December 12, 2006

Two common water pollutants can function in shellfish as the female sex hormone estrogen does. However, new studies show different behavioral effects of those contaminants on two species.

Elliptio complanata is a freshwater mussel whose populations are seriously declining in the United States. Katherine Flynn of Adelphi University in Garden City, N.Y., and her colleagues exposed lab-kept mussels to the weed killer atrazine or to estrogen for a week. Atrazine has exhibited estrogenic effects in other species (SN: 11/2/02, p. 275: More Frog Trouble: Herbicides may emasculate wild males).

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