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Posted Thu Jul 29 2010: from University of Calgary, via EurekAlert:
Gender-bending fish on the rise in southern Alberta
Chemicals present in two rivers in southern Alberta are likely the cause of the feminization of fish say researchers at the University of Calgary.... "We found that chemicals - man-made and naturally occurring - that have the potential to harm fish were present along approximately 600 km of river," ... The study focused on two rivers in the South Saskatchewan River Basin: The Red Deer and Oldman rivers, located in southern Alberta, Canada. The water was analyzed for more than two dozen organic contaminants, many with hormone-like activity, commonly found in wastewater or rivers impacted by human and agricultural activity. Compounds detected in the water included synthetic estrogens (birth control pill compounds and hormone therapy drugs); bisphenol A, a chemical used in making plastics; and certain types of natural and synthetic steroids that are byproducts of agricultural run-off and cattle farming.... Our results showed females make up 85 per cent of the population of longnose dace. In the upstream locations, females comprise 55 per cent of the population," says Habibi...
[Read more stories about: endocrine disruptor, hermaphroditic creatures, bisphenol A, pharmwater]

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'Doc Michael says:
And what males remain... are exhausted.

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  • (Gender-bending fish on the rise in southern Alberta)
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