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Investigating the age composition of Indo-Pacific humpback dolphins in the Pearl River Estuary based on their pigmentation pattern

文献类型：期刊论文

作者Guo, Lang4; Lin, Wenzhi1,2,3,4; Zeng, Chen4; Luo, Dingyu4; Wu, Yuping4
刊名MARINE BIOLOGY
出版日期2020-03-03
卷号167期号:4页码:12
ISSN号0025-3162
DOI10.1007/s00227-020-3650-x
英文摘要Age composition is an important population parameter for understanding and managing endangered species. There are very few studies involving cetaceans in estimating the age of individuals in the wild. In this study, we rigorously quantified the body color pattern of 37 stranded Indo-Pacific humpback dolphins (Sousa chinensis) of the Pearl River Estuary (PRE), which showed a significant, albeit with variability between individuals, correlation with age for both the males (between age 1 and 35, r(2) = 0.84) and females (between age 1 and 25, r(2) = 0.85). The population-averaged correlation (r(2) = 0.85) was then applied to a large volume of photo-identification data (2011-2015) to estimate the age composition of the population occurring in the greater deltaic region, which further suggested a spatial difference in age composition and, therefore, a complex demographic process of the humpback dolphin across the region. In particular, the age composition of humpback dolphins in the east PRE (Lingding Bay) is severely aged. Finally, a population viability analysis with the consideration of observed age structure and the simulated age-specific fecundity suggested that 95.75% of the Lingding Bay humpback dolphins are projected to be lost after three generations. Given the sophisticated anthropogenic landscape in the PRE, we suggest that management units of the humpback dolphins should be clearly defined and the regional-specific conservation measures are much needed.
WOS关键词SOUSA-CHINENSIS ; GEOGRAPHIC-VARIATION ; POPULATION TRENDS ; LIFE-HISTORY ; HONG-KONG ; GROWTH ; DYNAMICS ; COASTAL ; WHALES ; PORPOISE
资助项目Natural Science Foundation of China[41576128] ; Provincial Natural Science Foundation of Guangdong in China[2017A030308005] ; Ocean Park Conservation Foundation of Hong Kong[AW04.1617] ; Ocean Park Conservation Foundation of Hong Kong[MM01.1718] ; Biodiversity Investigation, Observation and Assessment Program (2019-2023) of Ministry of Ecology and Environment of China[9-38-27-1] ; Natural Science Foundation of Guangdong Province[2018A030313870] ; Research Grants Council (RGC) of Hong Kong[HKU17100015] ; Marine Ecology Enhancement Fund (MEEF) grant[MEEF2017015] ; Marine Ecology Enhancement Fund (MEEF) grant[MEEF2017015A]
WOS研究方向Marine & Freshwater Biology
语种英语
WOS记录号WOS:000519214400012
出版者SPRINGER HEIDELBERG
资助机构Natural Science Foundation of China ; Provincial Natural Science Foundation of Guangdong in China ; Ocean Park Conservation Foundation of Hong Kong ; Biodiversity Investigation, Observation and Assessment Program (2019-2023) of Ministry of Ecology and Environment of China ; Natural Science Foundation of Guangdong Province ; Research Grants Council (RGC) of Hong Kong ; Marine Ecology Enhancement Fund (MEEF) grant
源URL[http://ir.idsse.ac.cn/handle/183446/7506]  
专题深海科学研究部_深海生物学研究室_海洋哺乳动物与海洋生物声学研究组
通讯作者Lin, Wenzhi; Wu, Yuping
作者单位1.Cetacea Res Inst, Div Cetacean Ecol, Hong Kong, Lantau, Peoples R China
2.Haisang Ecol Technol, Zhuhai 519000, Peoples R China
3.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Marine Mammal & Marine Bioacoust Lab, Sanya 572000, Peoples R China
4.Sun Yat Sen Univ, Guangdong Prov Key Lab Marine Resources & Coastal, Zhuhai Key Lab Marine Bioresources & Environm, Sch Marine Sci,Southern Marine Sci & Engn Guangdo, Zhuhai, Peoples R China
推荐引用方式
GB/T 7714		 Guo, Lang,Lin, Wenzhi,Zeng, Chen,et al. Investigating the age composition of Indo-Pacific humpback dolphins in the Pearl River Estuary based on their pigmentation pattern[J]. MARINE BIOLOGY,2020,167(4):12.
APA Guo, Lang,Lin, Wenzhi,Zeng, Chen,Luo, Dingyu,&Wu, Yuping.(2020).Investigating the age composition of Indo-Pacific humpback dolphins in the Pearl River Estuary based on their pigmentation pattern.MARINE BIOLOGY,167(4),12.
MLA Guo, Lang,et al."Investigating the age composition of Indo-Pacific humpback dolphins in the Pearl River Estuary based on their pigmentation pattern".MARINE BIOLOGY 167.4(2020):12.

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来源：深海科学与工程研究所

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