Which fish has been affected by endocrine disruptors?
Aquariums where male fathead minnows were exposed to the effluent from a wastewater treatment plant. USGS scientists and their colleagues reported in the journal Aquatic Toxicology that exposure to the wastewater from a major metropolitan sewage treatment plant caused endocrine disruption in male fathead minnows.
Do endocrine disruptors affect fish?
Endocrine-disrupting compounds have the potential to perturb sensitive hormone pathways that regulate reproductive functions. In fish, this may result in decreased fertility and egg production in females, or lead to reduced gonad size or feminization of genetic male fish.
What kind of foods contain endocrine disruptors?
Endocrine-disrupting chemicals linked to a variety of health problems are abundant in fast foods sold in the United States, such as chicken nuggets, hamburgers, and cheese pizza, new research suggests.
Are Obesogens endocrine disruptors?
These obesogens include, but are not limited to endocrine disrupting compounds that alter fat cell differentiation or function and that initiate or exacerbate misregulation of homeostatic controls.
Why is intersex fish bad?
It happens in species of fish that aren’t hermaphroditic, and it doesn’t help reproduction. In severe cases, it can make fish sterile. “Intersex definitely is not normal,” says Don Tillitt, a U.S. Geological Survey toxicologist. The presence of female eggs in male testes indicates some kind of hormonal confusion.
Are fish turning female?
A new study published in Ecotoxicology and Environmental Safety finds that male fish are turning into females – a phenomenon known as intersex – due to chemical pollution, specifically estrogenic endocrine disrupting chemicals or EEDCs. Smallmouth bass in this river have a high incidence of intersex.
How do endocrine disruptors affect aquatic life?
Intersex is one manifestation of endocrine disruption in fish. Endocrine disruption can result in adverse effects on the development of the brain and nervous system, the growth and function of the reproductive system, and the response to stressors in the environment.
Why we should be concerned about the feminization of fish?
Experiments with minnows suggest that exposure to environmental estrogens may cause problems for fish populations. Very severe levels of feminization—having a lot of egg cells in the testes—can impair sperm quality, impeding a fish’s ability to reproduce.
How can I avoid endocrine disruptors?
9 Ways to Avoid Hormone-Disrupting Chemicals
- Wash your hands.
- Dust and vacuum often.
- Turn up your nose at fragrances.
- Think twice about plastics.
- Say “no can do” to cans.
- Watch what you eat.
- Filter your tap water.
- Rethink kids’ cosmetics.
How do I get rid of Obesogens?
How to Minimize Your Exposure to Obesogens
- Avoid foods and beverages that have been stored in plastic containers.
- Use stainless steel or quality aluminum water bottles instead of plastic.
- Do not feed your babies from plastic bottles.
- Instead of non-stick cookware, use cast iron or stainless steel.