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Effects fish pollution sex water

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All rights reserved. About 85 percent of male smallmouth bass collected in national wildlife refuges in the Northeastern U. Pollutants that mimic sex hormones are the suspected culprit. Fish in wildlife refuges are feminized, probably by hormone-skewing pollution.
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Fish Devastated By Sex-changing Chemicals In Municipal Wastewater

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Male fish mutating into females because of waste chemicals, expert warns | The Independent

Researchers caught this male rainbow darter fish in the Grand River after improvements to a water treatment plant upstream. This fish now sports its normal rainbow colors. Some types of water pollution can make male fish look and act like females. But a new study shows that better water treatment can prevent that. Water treatment plants are supposed to clean the water from our toilets, showers and sinks before releasing it into rivers, lakes and oceans. They are also supposed to treat water from manufacturing plants.
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Cleaner water helps male fish again look and act like guys

Sex is influenced by water pollutants that are encountered in everyday life. These sources of water can range from the simplicity of a water fountain to the entirety of the oceans. Foreign substances such as chemical pollutants that cause an alteration of sex have been found in growing prevalence in the circulating waters of the world. These pollutants have affected not only humans, but also animals in contact with the pollutants. EDCs are present in the environment, whether naturally or artificially.
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Nearly 10 years after he helped reveal how significant an impact human drugs were having on wildlife, Professor Charles Tyler has warned that scientists are becoming increasingly concerned about the consequences of thousands of waste substances. Some are from industrial processes, but others are drugs taken by people that then pass through them and into the sewers or are simply flushed directly into the toilet. He took part in a major study in that found nearly a quarter of male roach fish taken from 51 sites on English rivers showed signs of becoming female , such as having eggs in their testicles. In some rivers, all the male roach were found to have been feminised to a degree because of high levels of oestrogen, which is used along with progestin in birth-control pills to prevent ovulation and is also present in other drugs.
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