Department of Botany and Zoology, University of Stellenbosch, Stellenbosch, South Africa.
Centre for Statistics in Ecology, Environment and Conservation, Department of Statistical Sciences, University of Cape Town, Western Cape, South Africa.
JASA Express Lett. 2022 Apr;2(4):041201. doi: 10.1121/10.0010072.
Humpback whales are a cosmopolitan, highly vocal species. Investigated here are their vocalizations recorded at the Vema Seamount (31°38'S, 08°20'E) from moored hydrophones in the austral spring of 2019. During the 11-d recording period over 600 non-song calls were detected. Calls were predominantly detected at night over three consecutive days. The most common calls were low, frequency-modulated sounds (whups). An impulsive sound (gunshot) previously unknown in humpback whales was also detected. The location and timing of the calls suggests that humpback whales may be using the Vema Seamount as a temporary stop on their migration to their polar feeding grounds.
座头鲸是一种世界性的、高嗓音的物种。本研究调查了 2019 年南半球春季在韦马海山（31°38'S，08°20'E）通过系泊水听器记录的座头鲸叫声。在 11 天的记录期间，检测到了超过 600 种非歌曲叫声。这些叫声主要在连续三天的夜间被检测到。最常见的叫声是低频调制的声音（呼呼声）。还检测到了一种以前在座头鲸中未知的脉冲声（枪声）。叫声的位置和时间表明，座头鲸可能将韦马海山用作它们迁徙到极地觅食地的临时停留点。
