中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 深海科学与工程研究所
  3. 中国科学院深海科学与工程研究所
  4. 深海科学研究部
  5. 深海生物学研究室
  6. 海洋哺乳动物与海洋生物声学研究组
Indo-Pacific humpback dolphins face extirpation in Shantou waters

文献类型：期刊论文

作者Lin, Wenzhi1,4; Zheng, Ruiqiang1,2,3; Xu, Shiyao3; Li, Songhai4
刊名REGIONAL STUDIES IN MARINE SCIENCE
出版日期2024-12-10
卷号77页码:8
关键词Chinese white dolphin Sousa chinensis Coastal dolphin Local extirpation Small population
ISSN号2352-4855
DOI10.1016/j.rsma.2024.103641
英文摘要The Indo-Pacific humpback dolphin is an inshore species occurring in productive estuarine and coastal areas of the Indo-Pacific. Since the end of the 20th century, coastal region of China has experienced tremendous economic expansion, exposing this dolphin species to a wide range of human activities. Despite frequent voices of concern in the past three decades calling for research and conservation attention, protracted debates were not followed by constructive conservation actions due to the lack of or inconsistent use of demographic data. The current study examined 13 -year sighting and photo -identification data collected for a small and little known population of humpback dolphins off the coast of Shantou (ST) in the northern South China Sea. Compared to conspecific populations inhabiting large or medium-sized estuarine systems, the ST dolphins have much larger home range (mean = 181.3 km 2 , S.D. = 87.7) which, however, has been shrinking recently due to coastal reclamations and expanding aquaculture farming. Although at least two dolphin births were recorded between 2010 and 2022, there was no successful recruitment of a non -calf individual. Meanwhile, the population shrank by 29.4 %, with the most updated population size of only 12 individuals, estimated in 2022. Based on the current demographic trend, we predict that the ST humpback dolphins will be extirpated within one or two decades. Furthermore, as the dolphins are aging and becoming less reproductively viable, there is little chance to reverse the declining trend even without additional stressors. Moreover, we noticed prevailing vertebral column deformities amongst the ST dolphins, possibly a sign of inbreeding depression of a small population. The present study exemplifies a typical case of a small, isolated and locally endangered dolphin population that is approaching local extinction without efficient monitoring program and conservation action. We emphasize that without solution -based research and efficient conservation planning, other humpback dolphin populations in China might soon follow in the steps of ST humpback dolphins.
WOS关键词SOUSA-CHINENSIS ; ALGOA BAY ; SITE FIDELITY ; XIAMEN BAY ; HONG-KONG ; POPULATION ; CONSERVATION ; RANGE ; IDENTIFICATION ; PARAMETERS
资助项目Zhilan Foundation ; Tencent Foundation ; Ocean Park Conservation Fund ; Disney Conservation Fund ; Nanpeng Archipelago National Nature Reserve
WOS研究方向Environmental Sciences & Ecology ; Marine & Freshwater Biology
语种英语
WOS记录号WOS:001259131200001
出版者ELSEVIER
资助机构Zhilan Foundation ; Tencent Foundation ; Ocean Park Conservation Fund ; Disney Conservation Fund ; Nanpeng Archipelago National Nature Reserve
源URL[http://ir.idsse.ac.cn/handle/183446/11524]  
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; Zheng, Ruiqiang
作者单位1.Cetacea Res Inst, Div Cetacean Ecol, Hong Kong, Peoples R China
2.Shantou Univ, Inst Marine Sci, Guangdong Prov Key Lab Marine Biotechnol, Shantou 515063, Peoples R China
3.China Blue Sustainabil Inst, Haikou 570208, Peoples R China
4.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Marine Mammal & Marine Bioacoust Lab, Sanya 572000, Peoples R China
推荐引用方式
GB/T 7714		 Lin, Wenzhi,Zheng, Ruiqiang,Xu, Shiyao,et al. Indo-Pacific humpback dolphins face extirpation in Shantou waters[J]. REGIONAL STUDIES IN MARINE SCIENCE,2024,77:8.
APA Lin, Wenzhi,Zheng, Ruiqiang,Xu, Shiyao,&Li, Songhai.(2024).Indo-Pacific humpback dolphins face extirpation in Shantou waters.REGIONAL STUDIES IN MARINE SCIENCE,77,8.
MLA Lin, Wenzhi,et al."Indo-Pacific humpback dolphins face extirpation in Shantou waters".REGIONAL STUDIES IN MARINE SCIENCE 77(2024):8.

入库方式： OAI收割

来源：深海科学与工程研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。