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Environment
Short-term exposure to estrogen cuts fish fertility
June 23rd, 2003
While several studies have focused on how estrogen from contraceptives may alter sex organs of juvenile fish, few studies have analyzed how exposure to estrogen affects adult fish as they make their way through rivers, lakes, and streams to spawn. Now, a study by scientists at the U.S. Department of Energy's Pacific Northwest National Laboratory (PNNL) suggests that when adult male fish are exposed to short-term and low concentrations of a synthetic estrogen, their fertility can drop by as much as 50%. The study, conducted with the University of Idaho, appears in the June 2003 issue of Environmental Toxicology and Chemistry. ...
Source: Life Science Weekly (2003-06-23)
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