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学科主题: Multidisciplinary Sciences
题名: Coral community changes in response to a high sedimentation event: A case study in southern Hainan Island
作者: [Li XiuBao ; Huang Hui ; Lian JianSheng ; Yang JianHui ; Ye Cheng ; Chen YongQiang ; Huang LiangMin] Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Marine Bioresources Sustainable Utilizat, Guangzhou 510301, Guangdong, Peoples R China ; [Li XiuBao ; Huang Hui] Chinese Acad Sci, Trop Marine Biol Res Stn Hainan, Sanya 572000, Peoples R China
通讯作者: coralreef@scsio.ac.cn
关键词: coral community composition ; dredging ; sediment accumulation rate ; recovery ; Hainan Island ; juvenile coral
刊名: CHINESE SCIENCE BULLETIN
发表日期: 2013
卷: 58, 期:9, 页:1028-1037
部门归属: LMB
资助者: The authors thank the editors and the two anonymous reviewers for their valuable comments on the manuscript. This work was supported by Key Topics in Innovation Engineering of the Chinese Academy of Sciences (KZCX2-YW-227), the National Natural Science Foundation of China (40830850, 41106141 and 40931160437), the National Key Technology R&D Program (2009BAB44B01) and the Ocean Public Welfare Scientific Research Project (201005012-6).
摘要: A high sedimentation event caused by dredging and dumping of sediment was recorded on Xiaodonghai Reef in Yulin Bay, southern Hainan Island, China. Significantly high sedimentation and constant light shading were observed during the sediment dumping event (SD Event). Using long-term video transects, we quantified coral community changes and responses to the SD Event between 2008 and 2010. The SD Event caused severe coral mortality on Xiaodonghai Reef at a depth of 6 m, while corals at 3 m were less affected. Total live coral cover at 6 m decreased from 54.3% to 14.8%, and Diploastrea heliopora replaced Galaxea fascicularis as the dominant coral species at 6 and 9 m. The density of juvenile corals also declined after the SD Event, especially for the genera Galaxea and Platygyra. However, the density of juvenile Porites and Pocillopora spp. slightly increased. Monitoring for 11 months after the SD Event indicated no recovery of coral communities on Xiaodonghai Reef. Long-term video transect data also revealed that mean live coral cover dramatically declined, from 30.5% in 2008 to 9% in 2010, while the dominant corals in Yulin Bay shifted to more tolerant coral species, such as massive Porites spp. and D. heliopora. The rapid coral community degradation in Yulin Bay between 2008 and 2010 was probably caused by high sediment deposition resulting from intensive dredging and land-clearing activities. These results highlight the necessity for an integrated watershed management to control sediment deposition on near-shore coral reefs.
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000316219500011
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内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/11062
Appears in Collections:中科院海洋生物资源可持续利用重点实验室_期刊论文

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Recommended Citation:
[Li XiuBao; Huang Hui; Lian JianSheng; Yang JianHui; Ye Cheng; Chen YongQiang; Huang LiangMin] Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Marine Bioresources Sustainable Utilizat, Guangzhou 510301, Guangdong, Peoples R China; [Li XiuBao; Huang Hui] Chinese Acad Sci, Trop Marine Biol Res Stn Hainan, Sanya 572000, Peoples R China.Coral community changes in response to a high sedimentation event: A case study in southern Hainan Island,CHINESE SCIENCE BULLETIN,2013,58(9):1028-1037
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