Toronto Star 
July 26, 2010
A British scientist has found that anti-depressants in water cause shrimp to behave more recklessly than usual.
The study, published in the journal Aquatic Toxicology, found that shrimp behaviour changed when exposed to the same levels of Prozac found in the waste water that flows to rivers and estuaries because of the drugs humans excrete in their sewage.
For many years, scientists have known that drugs in the water have had an impact on marine life. For example, estrogen in the water has caused what Dr. Alex Ford calls “the feminization” of fish.
That got Ford and another researcher thinking that perhaps all kinds of drugs were potentially affecting marine life.