Antidepressants threaten sea's ecosystem, scientists have revealed.

It was reported that they warned that rising levels of antidepressants in coastal waters could change sea life behavior and potentially damage the food chain.

A study into the behavior of shrimps exposed to the antidepressant fluoxetine showed that their behavior was dramatically affected.

Shrimps are five times more likely to swim towards light instead of away from it, making them more likely to be eaten by fish or birds, researchers have found.

The Scotsman quoted Dr Alex Ford, from the University of Portsmouth's Institute of Marine Sciences, as saying, "This could seriously upset the natural balance of the ecosystem." (With Inputs from Agencies)