We measured spatial and temporal patterns of ambient noise in dynamic, relatively pristine Arctic marine habitats and evaluate the contributions of environmental and human noise sources. Long-term acoustic recorders were deployed around St. Lawrence Island and the Bering Strait region within key feeding and migratory corridors for protected species that are inherently important to Native Alaskan cultures. Over 3000 h of data from 14 recorders at nine sites were obtained from October 2014 to June 2017. Spatial and temporal ambient noise patterns were quantified with percentile statistics in 1/3rd-octave bands (0.02–8 kHz). Ice presence strongly influenced ambient noise by influencing the physical environment and presence of marine mammals. High variability in noise was observed within and between sites, largely as a function of ice presence and associated factors. Acute contributions of biological and anthropogenic sources to local ambient noise are compared to monthly averages, demonstrating how they influence Arctic soundscapes.

我们测量了动态，相对原始的北极海洋栖息地中环境噪声的时空分布，并评估了环境和人类噪声源的贡献。在圣劳伦斯岛和白令海峡地区周围的关键觅食和迁徙走廊内部署了长期录音机，用于保护对阿拉斯加土著文化固有的重要物种。2014年10月至2017年6月，从9个站点的14个记录器获得了3000多小时的数据。使用1/3倍频程（0.02-8 kHz）中的百分位数统计来量化空间和时间环境噪声模式。冰的存在通过影响物理环境和海洋哺乳动物的存在而极大地影响了环境噪声。站点内部和站点之间的噪声变化很大，主要取决于冰的存在和相关因素。将生物和人为源对当地环境噪声的急性贡献与每月平均值进行比较，表明它们如何影响北极的声景。