Analysis of echolocation clicks from Indo-Pacific humpback dolphins(Sousa chinensis)and East Asian finless porpoises(Neophocaena asiaeorientalis sunmeri)  

作　　者：WANG Yueyun WANG Xianyan XU Xiaohui SONG Zhongchang YANG Wuyi ZHANG Yu 

机构地区：[1]Chengyi University College,Jimei University,Xiamen 361003 [2]Third Institute of Oceanography,Ministry of Natural Resources China,Xiamen 361000 [3]Key Laboratory of Underwater Acoustic Communication and Marine Information Technology,Ministry of Education,Xiamen University,Xiamen 361000 [4]College of Ocean and Earth Sciences,Xiamen University,Xiamen 361000

出　　处：《Chinese Journal of Acoustics》2022年第2期132-142,共11页声学学报（英文版）

基　　金：supported by the National Natural Science Foundation of China(12074323,42076159);the Special Fund for Marine and Fishery Development of Xiamen(20CZB015HJ01);Water Conservancy Science and Technology Innovation Project of Guangdong(2020-16);Young and Middle-aged Teacher Education Research Project of Fujian Provincial Department of Education(JT180873);Youth Research Fund Project of Chengyi University College,Jimei University(CK17009);Provincial Natural Science Foundation(2021J06031)。

摘　　要：Echolocation clicks of Indo-Pacific humpback dolphins(Sousa chinensis)and East Asian finless porpoises(Neophocaena asiaeorientalis sunmeri)were recorded and analyzed to deepen our understandings on vocalizations variability of these two endangered species.Passive acoustic monitoring was used to record the clicks during boat-based field surveys in the Xiamen waters.Subsequent analyses show clicks emitted by Indo-Pacific humpback dolphins are characterized by short duration,high frequency,and broadband bandwidth.Comparatively,clicks of East Asian finless porpoise have a relatively longer duration,higher peak frequency,and narrower bandwidth.The duration,centroid frequency and-10 dB bandwidth of clicks are significantly different between these two species.

关 键 词：ASIAN East species 

分 类 号：Q958.8[生物学—动物学] TB565.1[交通运输工程—水声工程]