For several decades scientists have tried to determine the effects and impacts of pharmaceuticals in wastewater effluent on aquatic life. This work primarily focused on synthetic oestrogens like those found in the contraceptive pill and their role in feminized and intersex fish. With more than 1 in 10 people being prescribed antidepressants in some countries, the focus has more recently turned to drugs that are used to treat depression, anxiety and anti-psychotics. This talk highlights some of recent research which has highlighted the effects of antidepressants such as Prozac on aquatic life at environmentally relevant concentrations. These include a variety of changes in an organism’s behaviour including activity, aggression, habitat selection and feeding. The talk will also provide an opportunity to highlight some of the limitations in the current studies and address the ‘repeatability’ question in ecotoxicology

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