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Regional hard coral distribution within geomorphic and reef flat ecological zones determined by satellite imagery of the Xisha Islands, South China Sea
Zuo Xiuling1,2,3; Su Fenzhen1,2; Zhao Huanting4; Zhang Junjue1,2,3; Wang Qi1,2,3; Wu Di5
2017-05-01
Source PublicationCHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
ISSN0254-4059
Volume35Issue:3Pages:501-514
Corresponding AuthorSu Fenzhen(sufz@lreis.ac.cn)
AbstractCoral reefs in the Xisha Islands (also known as the Paracel Islands in English), South China Sea, have experienced dramatic declines in coral cover. However, the current regional scale hard coral distribution of geomorphic and ecological zones, essential for reefs management in the context of global warming and ocean acidification, is not well documented. We analyzed data from field surveys, Landsat-8 and GF-1 images to map the distribution of hard coral within geomorphic zones and reef flat ecological zones. In situ surveys conducted in June 2014 on nine reefs provided a complete picture of reef status with regard to live coral diversity, evenness of coral cover and reef health (live versus dead cover) for the Xisha Islands. Mean coral cover was 12.5% in 2014 and damaged reefs seemed to show signs of recovery. Coral cover in sheltered habitats such as lagoon patch reefs and biotic dense zones of reef flats was higher, but there were large regional differences and low diversity. In contrast, the more exposed reef slopes had high coral diversity, along with high and more equal distributions of coral cover. Mean hard coral cover of other zones was < 10%. The total Xisha reef system was estimated to cover 1 060 km(2), and the emergent reefs covered similar to 787 m(2). Hard corals of emergent reefs were considered to cover 97 km(2). The biotic dense zone of the reef flat was a very common zone on all simple atolls, especially the broader northern reef flats. The total cover of live and dead coral can reach above 70% in this zone, showing an equilibrium between live and dead coral as opposed to coral and algae. This information regarding the spatial distribution of hard coral can support and inform the management of Xisha reef ecosystems.
Keywordcoral reef geomorphic zone remote sensing Xisha Islands South China Sea
DOI10.1007/s00343-017-5336-x
WOS KeywordGREAT-BARRIER-REEF ; COMMUNITY STRUCTURE ; YONGXING ISLAND ; DIVERSITY ; BIODIVERSITY ; PATTERNS ; ARCHIPELAGO ; RECRUITMENT ; DISTURBANCE ; ABUNDANCE
Indexed BySCI
Language英语
WOS Research AreaMarine & Freshwater Biology ; Oceanography
WOS SubjectLimnology ; Oceanography
WOS IDWOS:000399168400004
PublisherSCIENCE PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/64602
Collection中国科学院地理科学与资源研究所
Corresponding AuthorSu Fenzhen
Affiliation1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China
2.Collaborat Innovat Ctr South China Sea Studies, Nanjing 210093, Jiangsu, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Marginal Sea Geol, Guangzhou 510301, Guangdong, Peoples R China
5.Dalian Naval Acad, Dept Hydrog & Cartog, Key Lab Hydrog & Cartog PLA, Dalian 116018, Peoples R China
Recommended Citation
GB/T 7714
Zuo Xiuling,Su Fenzhen,Zhao Huanting,et al. Regional hard coral distribution within geomorphic and reef flat ecological zones determined by satellite imagery of the Xisha Islands, South China Sea[J]. CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2017,35(3):501-514.
APA Zuo Xiuling,Su Fenzhen,Zhao Huanting,Zhang Junjue,Wang Qi,&Wu Di.(2017).Regional hard coral distribution within geomorphic and reef flat ecological zones determined by satellite imagery of the Xisha Islands, South China Sea.CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,35(3),501-514.
MLA Zuo Xiuling,et al."Regional hard coral distribution within geomorphic and reef flat ecological zones determined by satellite imagery of the Xisha Islands, South China Sea".CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY 35.3(2017):501-514.
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