Potomac Fish Study Turns Up No Exact Cause of Abnormalities
More than 80 percent of the male smallmouth bass in the Potomac River are growing eggs, but after six years of searching, scientists still have not pinned down the pollutants that are causing the abnormality, according to research unveiled yesterday.
Federal officials released the results of the largest-ever investigation into "intersex" fish in the Potomac watershed.
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The chemical input to sewage and output from sewage treatment needs to be addressed to salvage the health of the ecosystem.