IHB OpenIR  > 水生生物多样性与资源保护研究中心  > 期刊论文
Passive acoustic monitoring of the distribution patterns of Irrawaddy dolphins (Orcaella brevirostris) in the middle reaches of the Ayeyarwady River, Myanmar
Wang, Zhi-Tao1; Duan, Peng-Xiang1; Akamatsu, Tomonari2; Wang, Ke-Xiong1; Wang, Ding1
Corresponding AuthorWang, Ke-Xiong(wangk@ihb.ac.cn)
2020-07-04
Source PublicationMARINE MAMMAL SCIENCE
ISSN0824-0469
Pages13
AbstractThe 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.
KeywordAyeyarwady River biosonar click Irrawaddy dolphins passive acoustic monitoring river dolphins
DOI10.1111/mms.12713
Funding OrganizationNational 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
Indexed BySCI ; SCI
Language英语
Funding ProjectNational Natural Science Foundation of China[31170501] ; National Natural Science Foundation of China[41806197]
WOS Research AreaMarine & Freshwater Biology ; Zoology
WOS SubjectMarine & Freshwater Biology ; Zoology
WOS IDWOS:000545126400001
WOS KeywordPORPOISES NEOPHOCAENA-PHOCAENOIDES ; TRANSMISSION BEAM PATTERN ; BEHAVIOR ; SONAR ; CONSERVATION ; BYCATCH ; CLICKS
PublisherWILEY
Funding OrganizationNational 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
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Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/38484
Collection水生生物多样性与资源保护研究中心_期刊论文
Corresponding AuthorWang, Ke-Xiong
Affiliation1.Chinese Acad Sci, Inst Hydrobiol, Key Lab Aquat Biodivers & Conservat, Wuhan, Peoples R China
2.Sasakawa Peace Fdn, Ocean Policy Res Inst, Tokyo, Japan
Recommended Citation
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.
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