Imagine you're in a food court and spoilt for choice. How will you choose where to eat? It might be the look of the food, the smell, or even the chatter of satisfied customers.

In our new research published in the Journal of Applied Ecology, we amplified the natural sounds of the sea through underwater speakers. We were testing if sound cues would draw baby oysters to swim to the locations where we are trying to regrow oyster reefs. It worked better than we’d hoped. Many thousands more larvae swam to our locations than control areas and settled on the bare rocks.