London, August 4 : A report has confirmed that sonar leads to behavioral changes in whales, with the animals subjected to sonar, neither diving nor feeding.
According to Nature News, this report was issued by the UK military, though it remained unpublished.
The impact of sonar on whales has become an increasingly fraught issue in recent years, with submarine exercises being linked to several high-profile mass strandings.
The US Navy has admitted concerns over sonar’s effects on marine mammals, although actual evidence for harm has been in short supply.
But military-sponsored tests now suggest that low levels of sonar, which do not cause direct damage to whales, could still cause harm by triggering behavioural changes.