Abstract：
Since the attribution of the bio-duck call to Antarctic minke whales (AMW Balaenoptera bonaerensis), different studies have retrospectively identified several bio-duck call types at various sites throughout the Southern Hemisphere. The function of their vocal behavior however, remains largely unknown. Further insights into their repertoire usage may help to reveal the function of their calls. Here, we use passive acoustic monitoring (PAM) data collected across six locations throughout the Weddell Sea (WS) in 2013 and from PALAOA Station (Ekström Ice Shelf, eastern WS) in 2015, 2016 and 2017. In 2013, we detected 11 bio-duck call types throughout the WS between May and December, with additional acoustic activity in February on the western recorder AMW calls fell into four general call clusters. Seasonal patterns of calls showed variability between locations and years. Furthermore, this is the first study to show that similar to other baleen whale species, AMWs also produce songs.
摘要：
自从将生物鸭称为南极小须鲸（AMWBalaenopterabonaerensis）以来，不同的研究已经在整个南半球的不同地点回顾性地确定了几种生物鸭呼叫类型。然而，他们的发声行为的功能，仍然很大程度上未知。进一步了解他们的曲目使用情况可能有助于揭示他们的调用功能。这里,我们使用2013年在威德尔海（WS）的六个地点和PALAOA站（Ekström冰架，东方WS)在2015年、2016年和2017年。2013年，我们在5月至12月的WS中检测到11种生物鸭呼叫类型，随着2月份西部录音机AMW的额外声学活动，呼叫分为四个一般呼叫集群。呼叫的季节性模式显示出位置和年份之间的差异。此外，这是第一项研究表明，与其他须鲸物种相似，AMWs还制作歌曲。
