Abstract
The Province of Khanh Hoa, Vietnam, is located in the western South China Sea and boasts a shoreline of 385 km and many islands. Previous studies have indicated the extreme diversity and abundance of coral reefs in its waters as compared with other coastal provinces of Vietnam. A study on the resilience of coral reefs against increased surface water temperature and anthropogenic impact is conducted at 19 reef sites in 2015. At each site, a series of parameters (e.g., coral covers, genus diversity, and coral recruitment, substratum heterogeneity, depth, water exchange level, and sediment deposit and water temperature) are measured quantitatively or semi-quantitatively. The measured data are rated based on the relationship between the parameter values and coral susceptibility; the consideration that reef health reflects the biological capability to adapt to environmental changes and the recruitment potential if bleached; and positive or negative influences of physical factors in the mitigation of thermal stress and protecting corals from bleaching. A cumulative analysis enables researchers to divide the studied reefs into four categories based on varying levels of reef health to support resilience, recovery, and vulnerability in the case of increased water temperature. Relevant management interventions for each category and other supporting activities are suggested to enhance management effectiveness and to plan the rehabilitation of coral reefs for biodiversity conservation and touristic development, taking into account the involvement of related stakeholders.
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References
Bui H L. 2011. Handbook for South Central Waters of Vietnam (in Vietnamese). Ha Noi: Publishing House of Natural Science and Technology, 208
Crabbe M J C. 2010. Coral ecosystem resilience, conservation and management on the reefs of Jamaica in the face of anthropogenic activities and climate change. Diversity, 2(6): 881–896
English S, Wilkinson C, Baker V. 1997. Survey Manual for Tropical Marine Resources. Townsville, Australia: Australian Institute of Marine Science, 390
Fabricius K E, McCorry D. 2006. Changes in octocoral communities and benthic cover along a water quality gradient in the reefs of Hong Kong. Marine Pollution Bulletin, 52(1): 22–33
Grimsditch G D, Salm R V. 2006. Coral Reef Resilience and Resistance to Bleaching. Gland, Switzerland: IUCN, 52
Hoang X B, Vo S T, Phan K H. 2008. Mass mortality of corals and reef living features at Con Dao archipelago (Vietnam) in October 2005. Journal of Marine Science and Technology, 8(1): 59–70
Hodgson G, Hill J, Kiene W, et al. 2006. Reef Check Instruction Manual: A Guide to Reef Check Coral Reef Monitoring. California, USA: Reef Check Foundation, Pacific Palisades, 86
Huang D, Licuanan W Y, Hoeksema B W, et al. 2015. Extraordinary diversity of reef corals in the South China Sea. Marine Biodiversity, 45(2): 157–168
Kaufman L, Sandin S, Sala E, et al. 2011. Coral Health Index (CHI): Measuring Coral Community Health. Arlington, VA, USA: Science and Knowledge Division, Conservation International, 15
Marshall P, Schuttenberg H. 2006. A Reef Manager’s Guide to coral bleaching. Townsville, Australia: Great Barrier Reef Marine Park Authority, 178
Otaño–Cruz A, Montañez–Acuña A A, Torres–López V, et al. 2017. Effects of changing weather, oceanographic conditions, and land uses on spatio–temporal variation of sedimentation dynamics along near–shore coral reefs. Frontiers in Marine Science, 4: 249
Salm R V, West J M. 2003. Enhancing coral reef survival in a changing climate: additional marine protected area guidelines. In: The Nature Conservancy and Partners (TNC) (2004) R2–Reef Resilience: Building Resilience into Coral Reef Conservation; Additional Tools for Managers: Coral Bleaching [CD–ROM]. Vol 2.0. Honolulu, Hawai’i: The Nature Conservancy
Pham H T, Le T V, Duong T K, et al. 2014. Fluctuation of water quality in Van Phong Bay, Khanh Hoa Province through last two decades. Collection of Marine Research Works (in Vietnamese), 20: 53–59
Phan M T, Nguyen H H, Bui H L. 2013. Assessment of environmental capacity of Thuy Trieu–Cam Ranh waters. Journal of Marine Science and Technology (in Vietnamese), 13(4): 371–381
Nguyen V L, Vo S T. 2014. Status of Coral Reefs in East Asian Seas Region, Vietnam. Tokyo, Japan: Japan Wildlife Research Center, Ministry of Environment, 187–216
Vo S T. 2002. The corals at Con Dao Archipelago (South Vietnam): before, during and after the bleaching event in 1998. In: Proceeding 9th International Coral Reef Symposium. Bali, Indonesia: Indonesian Institute of Sciences, International Society for Reef Studies, 895–899
Vo S T. 2011. Biodiversity dynamics of coral reefs in Nha Trang Bay and management measures. In: Proceeding of the 5th National Conference on Marine Science and Technology, Session of Biology and Marine Resources (in Vietnamese). Ha Noi: Publishing House of Natural Science and Technology, 29–39
Vo S T. 2014. Fauna of reef corals in the Vietnam marine areas. In: Proceeding of the Second National Conference on Marine Biology and Sustainable Development (in Vietnamese). Ha Noi: Publishing House of Natural Science and Technology, 315–322
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Foundation item: The funding support from Khanh Hoa Province Department of Science & Technology for the research in the framework of the project, namely “Research on coral reef rehabilitation aiming development of eco-tourism in Khanh Hoa Province”.
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Vo, S.T., Hua, T.T. & Phan, K.H. A study of coral reef resilience and implications of adaptive management and rehabilitation in Khanh Hoa Province, Vietnam. Acta Oceanol. Sin. 38, 112–117 (2019). https://doi.org/10.1007/s13131-019-1377-7
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DOI: https://doi.org/10.1007/s13131-019-1377-7