8 drugs detected in Sydney Harbour

The happy but erratic behaviour of the fish in Finding Nemo might be explained by their exposure to antidepressants, opiates and benzodiazepines in the waters of Sydney Harbour, research suggests.

Significant levels of antidepressants, painkillers, beta blockers and other pharmaceuticals are present in Sydney's harbours, bays and tributaries, according to environmental scientists writing in the Marine Pollution Bulletin.

The researchers, from the University of Sydney and the University of Queensland, recently analysed water samples from 30