Narwhals show physiological disruption in response to seismic survey ship noise

The reaction of narwhals to the loud noise from seismic air guns used in oil exploration involves a disruption of the normal physiological response to intense exercise as the animals try to escape the noise. The overall effect is a large increase in the energetic cost of diving while a paradoxically reduced heart rate alters the circulation of blood and oxygen.


Last updated on 20 July 2022

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Energy production and mining
Noise pollution
Species group: 
Marine mammals