Man-made noise is blamed for driving whales to their deaths

By Frank Pope, Ocean Correspondent Scientists say man-made noise equipment, including anti-seal sonar devices used in fish farms, is driving deep-water animals such as whales to shore, where they die. A northern bottlenose whale was washed up dead on a beach in Prestatyn, North Wales, on Saturday morning, the tenth of the species to become trapped or stranded on British shores this year. Scientists are blaming not just military sonar, but a large range of man-made noises that they fear are driving the normally deep-water animals to shore. The week before, another of the 10m (33ft) whales became trapped in a small Scottish loch. Rescuers managed to push the distressed animal out of Loch Eil and halfway to safety but on Friday morning the whale was found dead. “The whales are migrating at this time of year, so we normally do see more of them, but to have so many washing up is a little strange. There’s an enormous amount of man-made noise out at sea off the northwest of Scotland, and we can’t rule out that this is what causing them to come ashore,” said Mark Simmonds, Director of Science for the Whale and Dolphin Conservation Society. … Fish farms use ’Acoustic Harassment Devices’ in an effort to dissuade seals from looting from their nets. While designed to be used intermittently, it appears that at least some fish farms leave theirs running continually. “It’s an awful siren sound — very, very loud,” said Dr Patrick Miller of the Sea Mammal Research Unit in St Andrews. “There’s quite a bit of research that says they have more effect on cetaceans than seals. It may very well be that the seal-scarer had a big effect on keeping the animal inside the loch.” …

 Man-made noise is blamed for driving whales to their deaths via Apocadocs