Are acoustic monitoring devices harming narwhals and other marine life?

Are acoustic monitoring devices harming narwhals and other marine life?

Acoustic monitoring devices used for observing marine life and keeping track of human activities could be causing more harm than good, scientists say. Here is how narwhals are affected.A schematic depicting a narwhal diving towards a PAM device in Inglefield Bredning Fjord. Credit: Podolskiy et al., 2025A cross-cultural team of researchers from Hokkaido University (Sapporo, Japan) and the National Institute of Polar Research deployed PAM devices…