Determining Marine Mammal Distribution and Ambient Noise Using Passive Acoustic Deployments in the Northern Bering Sea and Bering Strait Region, 2015-2017

In this study, we integrated and analyzed new and existing sound recordings from the northern Bering and southern Chukchi Seas to provide data on marine mammal presence and noise levels for this area. Sound recordings collected in numerous biologically important and poorly studied areas were analyzed to determine marine mammal presence through the detection of their vocalizations. These recordings, made throughout the year were collected from different acoustic monitoring projects at strategic locations, such as the Bering Strait and Anadyr Strait, west of St. Lawrence Island. The resulting data from previous deployments (spanning 5 years), as well as strategic new deployments, constituted an important baseline from which were assessed for both ambient noise (natural and anthropogenic) and biological patterns, and allowed us to anticipate future impacts associated with increasing shipping, resource extraction and climate change. Data are presented as two CSV files: NPRB1511_Deployments_metadata.csv NPRB1511_Marine_Mammal_detections_metadata.csv Result figures from study calculations are included in folders corresponding to month of data collection. This dataset was generated as part of NPRB project 1511本研究整合并分析了白令海北部与楚科奇海南部的全新及现有声学录音（sound recording）数据，旨在为该海域提供海洋哺乳动物（marine mammal）分布及噪声水平相关资料。研究人员对众多具有重要生态学价值且研究程度较低的海域采集的声学录音进行分析，通过检测海洋哺乳动物的鸣叫声来确定其分布情况。这些全年不间断采集的录音数据，均取自圣劳伦斯岛西侧的白令海峡、阿纳德尔海峡等战略监测点位的多项声学监测（acoustic monitoring）项目。过往部署（历时5年）与新增战略部署所获得的数据，共同构成了重要的基线数据集，以此为基础可评估环境噪声（ambient noise）（含自然噪声与人为噪声（anthropogenic noise））及生物活动模式，同时可帮助我们预判航运活动增加、资源开发与气候变化未来可能带来的影响。本数据集以两个CSV（逗号分隔值文件，Comma-Separated Values）文件形式提供：NPRB1511_Deployments_metadata.csv 与 NPRB1511_Marine_Mammal_detections_metadata.csv。本研究计算得到的结果图件，将按照数据采集月份归入对应的文件夹中。本数据集为NPRB项目1511的研究成果之一。