Artificial light on coastlines lures small fish to their doom, coral reef study finds

Light pollution acts as ‘midnight fridge’, drawing in young fish, then predators, according to tests in French Polynesia

Artificial light shining from coastlines around the world is acting like “a midnight fridge” full of tasty snacks, threatening young fish who can be drawn to it and who are then eaten by predators also attracted by the brightness, according to a study.

It has long been established that light pollution hampers people’s ability to see the night sky and harms migrating birds, insects and other animals. But its impact on marine ecosystems has rarely been taken into account, said Jules Schligler, the lead author of the study at the international coral ecosystem research centre in Mo’orea, French Polynesia.