Fish are putting up less of a fight on the line when caught - making them less fun for sport fishing. (Photo courtesy of the National Park Service)
A recent report from the US Geological
Survey confirms past findings that fish
are in trouble. Tanya Ott
reports the hormone estrogen is getting
into rivers and lakes and could reduce
fish populations:
Transcript
A recent report from the US Geological
Survey confirms past findings that fish
are in trouble. Tanya Ott
reports the hormone estrogen is getting
into rivers and lakes and could reduce
fish populations:
The fish have been turning up with lesions and intersexed –
meaning they have both male and female characteristics.
Rob Angus is a fish biologist at the University of Alabama at Birmingham.
He wasn’t involved in the USGS research, but has studied the problem for
more than a decade. The culprit?
“You’re a female? You excrete estrogens. Both natural estrogens,
the estrogenst that are in birth control pills, females that are
on estrogen replacement therapy. All of those end up in the
wastewater stream.”
Wastewater treatment plants clean up about 90 percent of the
estrogen, but the remaining ten percent is a problem.
Fish don’t reproduce as easily. And, for sport fishers, the fish
aren’t as much fun to catch. They don’t put up as much of a fight
on the line. That could affect the 75 billion dollars sport fishing industry.
For The Environment Report, I’m Tanya Ott.