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Passive acoustic monitoring of the distribution patterns of Irrawaddy dolphins (Orcaella brevirostris) in the middle reaches of the Ayeyarwady River, Myanmar

文献类型：期刊论文

作者Wang, Zhi-Tao1; Duan, Peng-Xiang1; Akamatsu, Tomonari2; Wang, Ke-Xiong1; Wang, Ding1
刊名MARINE MAMMAL SCIENCE
出版日期2020-07-04
页码13
ISSN号0824-0469
关键词Ayeyarwady River biosonar click Irrawaddy dolphins passive acoustic monitoring river dolphins
DOI10.1111/mms.12713
通讯作者Wang, Ke-Xiong(wangk@ihb.ac.cn)
英文摘要The Irrawaddy dolphins (Orcaella brevirostris) are an endangered species. Thus, up-to-date information on the distribution pattern of dolphins is critical for its proper management and conservation. Using a towed passive acoustic monitoring device, the distribution pattern of the Irrawaddy dolphins in the middle reaches of the Ayeyarwady River, Myanmar, was investigated during a vessel-based survey between Mingun and Katha. This region was successively divided into segments 1-4 from upstream to downstream. Sixteen echolocation encounters, with a series of click trains separated by <8 min and 26 dolphin acoustic trajectories were recorded. The mean dolphin detection rate (animals/kilometer) across the four segments progressively increased from upstream to downstream. High relative abundance was observed in segment 4 (46%) and segment 1 (23%) which was consistent with findings from historical boat-based visual surveys. The averaged interclick intervals of each click train in segment 2 and 4 was significantly shorter than that in segment 3, indicating that the dolphins in these segments frequently use shorter-ranged biosonar. More frequent and consistent surveys with a systematic sampling track design that incorporates other factors and covering the whole distribution range along the Ayeyarwady River and at varied water levels are needed in the future.
WOS关键词PORPOISES NEOPHOCAENA-PHOCAENOIDES ; TRANSMISSION BEAM PATTERN ; BEHAVIOR ; SONAR ; CONSERVATION ; BYCATCH ; CLICKS
资助项目National Natural Science Foundation of China[31170501] ; National Natural Science Foundation of China[41806197]
WOS研究方向Marine & Freshwater Biology ; Zoology
语种英语
出版者WILEY
WOS记录号WOS:000545126400001
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
源URL[http://ir.ihb.ac.cn/handle/342005/38483]  
专题水生生物研究所_水生生物多样性与资源保护研究中心_期刊论文
通讯作者Wang, Ke-Xiong
作者单位1.Chinese Acad Sci, Inst Hydrobiol, Key Lab Aquat Biodivers & Conservat, Wuhan, Peoples R China
2.Sasakawa Peace Fdn, Ocean Policy Res Inst, Tokyo, Japan
推荐引用方式
GB/T 7714		 Wang, Zhi-Tao,Duan, Peng-Xiang,Akamatsu, Tomonari,et al. Passive acoustic monitoring of the distribution patterns of Irrawaddy dolphins (Orcaella brevirostris) in the middle reaches of the Ayeyarwady River, Myanmar[J]. MARINE MAMMAL SCIENCE,2020:13.
APA Wang, Zhi-Tao,Duan, Peng-Xiang,Akamatsu, Tomonari,Wang, Ke-Xiong,&Wang, Ding.(2020).Passive acoustic monitoring of the distribution patterns of Irrawaddy dolphins (Orcaella brevirostris) in the middle reaches of the Ayeyarwady River, Myanmar.MARINE MAMMAL SCIENCE,13.
MLA Wang, Zhi-Tao,et al."Passive acoustic monitoring of the distribution patterns of Irrawaddy dolphins (Orcaella brevirostris) in the middle reaches of the Ayeyarwady River, Myanmar".MARINE MAMMAL SCIENCE (2020):13.

入库方式： OAI收割

来源：水生生物研究所

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