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Status monitoring and health assessment of Luhuitou fringing reef of Sanya, Hainan, China
ZHANG Qiaomin[1,2] SHI Qi[1,2] CHEN Gang[3] FONG T C W[4] WONG D C C[5] HUANG Hui[1] WANG Hankui[1,6] ZHAO Meixia[1,2]
[1]South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China [2]Kay Laboratory of Marginal Sea Geology, Chinese Aeademy of Sciences, Guangzhou 510301, China [3]Department of Marine and Fishery of Hainan Province, Haikou 570203, China [4]Environmental Resources Management, Hong Kong, China [5]Hong Kong Cetacean Research Project, Hong Kong, China [6]Tropical Marine Biological Research Station in Halnan, Chinese Academy of Sciences, Sanya 572000, China
Status monitoring and health assessment of Luhuitou fringing reef of Sanya, Hainan, China
Abstract:
The monitoring survey and health assessment for benthic community were carded out in Luhuitou fdnging reef of Sanya, Hainan, China in 2002. Monitoring survey included manta tow, line intercept transect, video transect and digital photograph. The mean live coral cover was 23.40%. Comparison of used monitoring methods showed that video transect can replace line intercept transect, and 50 m transect is better than 20 m transect in uneven coral region. Survey data and comparison with previous research work showed that Luhuitou fringing reef has been damaged severely and has a general declining trend with live coral cover from about 85% in the 1960s down to 20% in 2004, but it still has quite high biodiversity and therefore has special protection value. Main factors of Luhuitou fdnging reef declining were human activities including reef rock digging and curios collecting, destructive fishing, sediment and pollutant from coastal land, and recent marine aquaculture. Only strengthening integrated management can reach improvement and restoration of Luhuitou declining coral reef ecosystem.[著者文摘]
Key words:
coral reef, fringing reef, status monitoring, health assessment, Hve coral cover, biodiversity, Sanya of Hainan.
基金资助:
Acknowledgements The authors would like to thank Hainan Sanya National Coral Reef Natural Reserve Administration, International Cooperation Division of State 0ceanic Administration of China, and Marine Environment protection Division of Department of Marine and Fishery of Hainan Province, for their powerful help. This work was supported by Chinese Ministry of Science ＆ Technology Special Scheme （Grant No. 2002CCA02700）, National Natural Science Foundation of China （Grant Nos. 40231009, 40406018）, UNEP Small Grant Fund Project （Grant No. MT/1010-01-03） and the Knowledge Innovation Project of South China Sea Institute of 0ceanology, Chinese Academy of Sciences.
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