Skinny dolphins: Can poor body condition explain population decline in Indo-Pacific humpback dolphins<i> (Sousa</i><i> chinensis)?</i>

doi:10.1016/j.scitotenv.2024.170401

CORC > 深海科学与工程研究所 > 中国科学院深海科学与工程研究所 > 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

	Skinny dolphins: Can poor body condition explain population decline in Indo-Pacific humpback dolphins (Sousa chinensis)?
	Serres, Agathe 3; Lin, Wenzhi 3; Liu, Binshuai 2,3; Chen, Shenglan 2,3; Li, Songhai 1,3
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2024-03-20
卷号	917 页码:14
关键词	Cetacean Diet Foraging Health Nutritional status Overfishing
ISSN号	0048-9697
DOI	10.1016/j.scitotenv.2024.170401
英文摘要	Indo-Pacific humpback dolphins (IPHDs) who form resident populations along the Chinese coastline are facing a wide range of anthropogenic disturbances including intense fishing and some populations have been shown to experience a severe decline. Body condition is thought to be a good indicator of health since it is linked to survival and reproductive success. In order to better understand population trends, we investigated whether the body condition of IPHDs is poorer in populations whose status is alarming than in other populations. UAV flights were conducted from 2022 to 2023 in four locations (i.e., Sanniang Bay, Leizhou Bay, Jiangmen, and Lingding Bay) in the northern South China Sea. Body ratios were calculated using the body length and widths of IPHDs and were used to analyze differences among seasons, locations, and demographic parameters. A PCA was then used to obtain a detailed picture of the body condition composition of dolphins at each location. Results showed that dolphins from Leizhou Bay and Jiangmen were in better body condition than those from Sanniang Bay and Lingding Bay. Since populations inhabiting Sanniang Bay and Lingding Bay have been shown to experience a sharp decline, it can be hypothesized that poor body condition may have played a role in such a trend. Further investigations of the factors impacting IPHDs' body condition are needed, including monitoring of prey density, contaminant concentration, stress levels, and impacts of human activities on dolphins' behavior. In addition, the creation of a robust scoring method would allow for regular monitoring of IPHDs' body condition to inform conservation measures.
资助项目	National Natural Science Foundation of China[42225604] ; National Natural Science Foundation of China[32150410369]
WOS关键词	PEARL RIVER ESTUARY ; WHALES EUBALAENA-GLACIALIS ; CONSERVATION STATUS ; LIFE-HISTORY ; HONG-KONG ; PHOTOGRAMMETRY ; GROWTH ; BLUE ; MASS
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:001174616200001
资助机构	National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.idsse.ac.cn/handle/183446/10910]
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	Li, Songhai
作者单位	1.Chinese Acad Sci, Key Lab Aquat Biodivers & Conservat, Inst Hydrobiol, Wuhan 430072, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Marine Mammal & Marine Bioacoust Lab, Sanya, Peoples R China
推荐引用方式 GB/T 7714	Serres, Agathe,Lin, Wenzhi,Liu, Binshuai,et al. Skinny dolphins: Can poor body condition explain population decline in Indo-Pacific humpback dolphins (Sousa chinensis)?[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2024,917:14.
APA	Serres, Agathe,Lin, Wenzhi,Liu, Binshuai,Chen, Shenglan,&Li, Songhai.(2024).Skinny dolphins: Can poor body condition explain population decline in Indo-Pacific humpback dolphins (Sousa chinensis)?.SCIENCE OF THE TOTAL ENVIRONMENT,917,14.
MLA	Serres, Agathe,et al."Skinny dolphins: Can poor body condition explain population decline in Indo-Pacific humpback dolphins (Sousa chinensis)?".SCIENCE OF THE TOTAL ENVIRONMENT 917(2024):14.