Institute of Hydrobiology, The Chinese Academy of Sciences, Wuhan 430072, People's Republic of China.
J Acoust Soc Am. 2010 Sep;128(3):1476-82. doi: 10.1121/1.3455829.
Data on distribution, abundance, ecology, and behavior are essential for conservation and management of endangered animals in the wild. Yangtze finless porpoise (Neophocaena phocaenoides asiaeorientalis) is an endangered small odontocete species, living exclusively in the Yangtze River and its connecting Poyang and Dongting Lakes. Frequent production of high-frequency bio-sonar signals allows the animal to be detectable using passive acoustic methods. Recently, a stereo acoustic event data-logger (A-tag) has been used extensively to detect the animal by using both fixed and mobile platforms. The passive acoustic monitoring methods were not only successful in detecting the presence of animals, but also in counting, localizing, and tracking phonating individuals. Underwater behavior observed acoustically helped to assess possible effects of vessels on the animals during acoustic surveys.
分布、丰度、生态学和行为的数据对于保护和管理野外濒危动物至关重要。长江江豚（Neophocaena phocaenoides asiaeorientalis）是一种濒危的小型齿鲸物种，仅生活在长江及其连通的鄱阳湖和洞庭湖。频繁产生高频生物声纳信号，使得动物可以通过被动声学方法进行探测。最近，立体声学事件数据记录器（A 标签）被广泛用于通过固定和移动平台检测动物。被动声学监测方法不仅成功地检测到了动物的存在，还能够对发声个体进行计数、定位和跟踪。通过声学观测到的水下行为有助于评估船只在声学调查期间对动物的可能影响。
