Coverage periods of acoustic receivers used in the study.

Maximum and mean (±SD) depths recorded at particular receivers were determined from C. leucas equipped with V16P transmitters (Table 1). NA = not availabl针对搭载V16P发射器的牛鲨（C. leucas），基于其在各特定接收站记录的深度数据，可计算得到各接收站对应的最大深度与平均（±标准差）深度，详细信息见表1。NA即不可用。