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Fine-scale habitat use in Indo-Pacific humpback dolphins, Sousa chinensis, may be more influenced by fish rather than vessels in the Pearl River Estuary, China
Pine, Matthew K.; Wang, Kexiong; Wang, Ding
2017
Source PublicationMARINE MAMMAL SCIENCE
ISSN0824-0469
Volume33Issue:1Pages:291-312
Abstract

Shifts in habitat use and distribution patterns in dolphins are often concerns that can result from habitat degradation. We investigated how potential changes to a habitat from human activity may alter dolphin distributions within Lingding Bay in the Pearl River Estuary, China, by studying the relationship between fish choruses, vessel presence and Indo-Pacific humpback dolphin (Sousa chinensis) detection rates. Analyses revealed temporal and spatial variation within fish choruses, vessel presence and dolphin detection rates. After accounting for any temporal autocorrelation, correlations between fish choruses and dolphin detection rates were also found; however, no relationship between fish choruses and vessel presence or dolphin detection rates and vessel presence were observed. Furthermore, fewer dolphins were detected at sites where fish activity was less intense. Thus fish activity, rather than vessels, may be a key factor influencing the distribution of the dolphins within the estuary. These findings emphasize the risk of potential shifts in habitat use for Indo-Pacific humpback dolphins due to detrimental changes to prey availability and dolphin feeding grounds from human activity, such as overfishing and coastal developments, within the estuary. This is a critical conservation issue for this dolphin population that is facing intense anthropogenic pressure.

KeywordIndo-Pacific humpback dolphin Sousa chinensis Chinese white dolphin acoustics habitat use Pearl River Estuary anthropogenic noise
DOI10.1111/mms.12366
Indexed BySCI
Language英语
WOS Research AreaMarine & Freshwater Biology ; Zoology
WOS SubjectMarine & Freshwater Biology ; Zoology
WOS IDWOS:000391037300015
WOS KeywordPORPOISES PHOCOENA-PHOCOENA ; HONG-KONG WATERS ; HARBOR PORPOISES ; FINLESS PORPOISES ; ECHOLOCATION BEHAVIOR ; CONSERVATION STATUS ; LARGEST POPULATION ; ABUNDANCE ; BAY ; SIGNALS
PublisherWILEY-BLACKWELL
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/33250
Collection水生生物多样性与资源保护研究中心_期刊论文
Corresponding AuthorPine, Matthew K.; Wang, Kexiong; Wang, Ding
AffiliationChinese Acad Sci, Key Lab Aquat Biodivers & Conservat, Inst Hydrobiol, 7 Donghu South Rd, Wuhan 430071, Peoples R China
Recommended Citation
GB/T 7714
Pine, Matthew K.,Wang, Kexiong,Wang, Ding. Fine-scale habitat use in Indo-Pacific humpback dolphins, Sousa chinensis, may be more influenced by fish rather than vessels in the Pearl River Estuary, China[J]. MARINE MAMMAL SCIENCE,2017,33(1):291-312.
APA Pine, Matthew K.,Wang, Kexiong,&Wang, Ding.(2017).Fine-scale habitat use in Indo-Pacific humpback dolphins, Sousa chinensis, may be more influenced by fish rather than vessels in the Pearl River Estuary, China.MARINE MAMMAL SCIENCE,33(1),291-312.
MLA Pine, Matthew K.,et al."Fine-scale habitat use in Indo-Pacific humpback dolphins, Sousa chinensis, may be more influenced by fish rather than vessels in the Pearl River Estuary, China".MARINE MAMMAL SCIENCE 33.1(2017):291-312.
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