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Survey for intersex fish in the Shenandoah River in Front Royal, Va.

Survey for intersex fish in the Shenandoah River in Front Royal, Va.

Vicki Blazer, right, of the U.S. Geological Survey leads a field survey of smallmouth bass from the Shenandoah River in Front Royal, Va., on Sept. 29, 2014. Blazer's team has observed the effects of pesticides, pharmaceuticals or other chemicals that disrupt the hormonal systems of smallmouth bass and lead to the presence of oocytes, or eggs, in male specimen's gonads. (Photo by Will Parson/Chesapeake Bay Program)

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Photo taken @ Front Royal on 29 September 2014 (© chesbayprogram / Flickr)

Related tags :
 animalia, federal, fish, government, kent county, md, maryland, rock hall, science, shenandoah river, u.s. geological survey (usgs), usgs, virginia, water bodies, animals, chemical contaminants, endocrine disruptors, environment, nature, pollution
 

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