Male Fish Feminization A Global Problem

fish feminization


Holy Hormones Honey! Sound fishy you say? Not so – the amount of estrogen mimickers that are getting into the water streams is alarming and causing the feminization of male fish.  Not just for estrogen in birth control – as we were told years ago – but now from a variety of products that we use on a daily basis.  The biggest culprit is BPA in plastic. How many water bottles, food wrapping and even fishing equipment (plastic bob) are tossed into the water?  Add to that household cleaners and laundry detergents that are flushed down the drain, perfumes, dryer sheets, sunscreen, cosmetics, vinyl shower curtains and air fresheners. All endocrine system disruptors.  We are our environment folks.  Wonder how many water treatment plants are prepared to filter estrogenic compounds out of the water.

Bizarre phenomenon of fish changing genders is happening all over the world: What’s in the water?

Natural News
Thursday, March 21, 2013 by: J. D. Heyes
What’s going on in the Northland waters near Minnesota? Well, scientists and other experts aren’t quite sure – yet.Not just one type but almost all kinds of fish, to include some of the most popular gaming fish like bass and walley, are changing.

What – wait. Changing? Yes, and at least one local news team has been documenting these changes since 2002, when concerns were first emerging. A decade later, “scientists are beginning to call it a significant threat,” the Northlands Newscenter reported in February.

“Walleye cakes, walleye bites, walleye sandwich…it’s a popular delicacy in restaurants around the northland,” the Newscenter said. “It’s also a multi-million dollar industry, attracting hundreds of thousands of anglers to the Northland’s beautiful lakes year round.”

Feminization of male fish

While many area residents and not a few visitors to the area take the industry for granted in believing that the waters can be fished forever, scientists have discovered a major threat to the abilities of many kinds of fish to reproduce.

“Changes in, for example, the external characteristics of males where they start to resemble females,” Dr. Gary Ankley of the U.S. EPA Lab in Duluth, Minn., told the Newscenter.


Author: Leslie Carol Botha

Author, publisher, radio talk show host and internationally recognized expert on women's hormone cycles. Social/political activist on Gardasil the HPV vaccine for adolescent girls. Co-author of "Understanding Your Mood, Mind and Hormone Cycle." Honorary advisory board member for the Foundation for the Study of Cycles and member of the Society for Menstrual Cycle Research.

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