Pilot Whales in Gibraltar Strait Must Shout to Communicate Amid Ship Noise

A new study shows long‑finned pilot whales (Globicephala melas) in the Strait of Gibraltar are forced to raise the volume of their calls to be heard over the noise of traffic. Researchers recorded that the dolphins can increase the loudness of short‑range vocalizations, but long‑distance calls remain difficult to transmit. With roughly 60,000 ships passing through the strait each year, the acoustic environment is increasingly hostile. The researchers warn that the whales may be unable to locate distant pod mates, risking disorientation and isolation. The findings raise concerns about the social cohesion of these large dolphins in one of the world’s busiest maritime corridors. Further monitoring of whale communication and ship traffic patterns will be needed to assess long‑term impacts.