Did you know that fish… talk?
Fish produce sounds to communicate, attract mates, warn of danger, and “read” their environment. In murky or dark waters, sound is often far more useful than vision!

In recent years, at the Archipelagos Institute, our researchers have been recording fish sounds in various areas of the Aegean Sea. Our goal is to use underwater acoustics to develop a new methodology for monitoring fish populations.
To date, we know of approximately 1,000 fish species worldwide that are capable of producing sounds. One of these species — and a key focus of our research — is the dusky grouper, a species of great ecological importance in the Mediterranean. Unfortunately, it is severely threatened by overfishing, mainly due to recreational fishing, and is now classified by the IUCN as Endangered.
Notably, the dusky grouper is one of the few natural predators of lionfish, an invasive species spreading at alarming rates in our seas.