Male bass are experiencing unwanted sex changes, apparently thanks to the “chemical soups” that pass for waterways in the Northeast. The Washington Post reports 85% of male smallmouth bass surveyed in the region have “characteristics of the opposite sex”—specifically eggs where their testes should be.
The same is true of 27 percent of area largemouth bass, Vice adds. For a recently published study, researchers tested bass near 19 wildlife refuges in the Northeast, according to a US Geological Survey press release.
Researchers didn’t do a chemical analysis of the water where the intersex fish were found, so they can’t be sure specifically what is causing the sex changes.
But they suspect the problem is things that get dumped down drains and into US waters. Researchers believe the likely culprits are birth control pills, pesticides, hormones in livestock manure, and other chemical-heavy products, according to the press release.
http://www.foxnews.com/science/2016/01/04/male-bass-are-experiencing-unwanted-sex-changes.html
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