Estimation of changes in behaviour of narwhals

Anthropogenic activities are increasing in the Arctic posing a threat to species with high seasonal site-fidelity, such as the narwhal Monodon monoceros. In this controlled sound exposure study, six narwhals were live-captured and instrumented with animal-borne tags providing movement and behavioural data, and exposed to 1) ship noise and 2) concurrent ship noise and airgun pulses.北极地区的人类活动日益增多，对具有高季节性位点保真度的物种构成威胁，例如一角鲸（Monodon monoceros）。本项受控声音暴露实验中，研究人员对6头一角鲸进行活体捕捉，并为其佩戴动物搭载式标签以采集运动与行为数据，随后令这些个体暴露于两种声学环境中：1）船舶噪声环境；2）船舶噪声与气枪脉冲同步作用的环境。