Various parameters related to buzzes and calls.

Buzzes only include those made by the tagged whale, whereas calls include those made by the tagged whale and other nearby whales. The calculation of mean buzzing and calling rates omitted the post-release silent period. A few calls in Thora’s and Eistla’s records, which took place before the tagged narwhal started clicking, were excluded (see Fig 3). IQR = inter-quartile range, NA = not applicable. All depths are in meters. Buzz durations are based on 35 analyzed buzzes per whale, and 18 for Mára.

仅将标记鲸发出的信号纳入嗡鸣脉冲（buzz）范畴，而鸣叫声（call）则涵盖标记鲸及周边邻近鲸类发出的所有信号。平均嗡鸣脉冲率与鸣叫声率的计算均剔除了放归后的静默时段。索拉（Thora）与艾斯特拉（Eistla）的记录中，存在少量于标记独角鲸（narwhal）开始发出咔哒声之前产生的鸣叫声，此类信号已被剔除（详见图3）。四分位距（inter-quartile range，简称IQR）；不适用（not applicable，简称NA）。所有深度的单位均为米。嗡鸣脉冲时长的统计基于每头鲸的35段经分析的嗡鸣脉冲样本，其中玛拉（Mára）的样本量为18段。