Follow Slashdot stories on Twitter


Forgot your password?

Slashdot videos: Now with more Slashdot!

  • View

  • Discuss

  • Share

We've improved Slashdot's video section; now you can view our video interviews, product close-ups and site visits with all the usual Slashdot options to comment, share, etc. No more walled garden! It's a work in progress -- we hope you'll check it out (Learn more about the recent updates).


Male Bass in Potomac Producing Eggs 52

Posted by michael
from the hello-mother-hello-father dept.
Shakrai writes "The Washington Post is carrying a story about how male bass in the Potomac river are actually producing eggs. The source of this interesting phenomena is currently unknown. Scientists are speculating that it may have something to do with chicken estrogen left over in manure or perhaps even human hormones dumped in the river from sewage treatment plants. Scientists aren't sure if the affected fish are still able to reproduce and the long-term repercussions of this find are unknown."
This discussion has been archived. No new comments can be posted.

Male Bass in Potomac Producing Eggs

Comments Filter:
  • by rubberbando (784342) on Friday October 15, 2004 @01:52PM (#10537487)
    Here is an article [] showing it happening to other species.
  • Re:WTF? (Score:5, Informative)

    by Kobal (597997) on Friday October 15, 2004 @02:39PM (#10538064)
    Actually, used birth control pills count here. Oestrogens are sulfo-conjugated, and then eliminated in urine. By the way, premarin is nothing else than equine sulfo-conjugated oestrogens.
    Other oestrogenic endocrine disruptors include soy products (esp. after metabolization of genistein and daidzein into equol by the intestinal flora), heavy metals (esp. Cadmium; though I suspect hair metal could have some effect along the same line), many phytosanitary chemicals (DDT was a prime exemple, but atrazine and pyrethrenoids aren't bad either), as well as a whole lot of chemicals containing one or several phenol groups.

"Mr. Watson, come here, I want you." -- Alexander Graham Bell