| VO Si Tuan,HUA Thai Tuyen,PHAN Kim Hoang. 2019. A study of coral reef resilience and implications of adaptive management and rehabilitation in Khanh Hoa Province, Vietnam. Acta Oceanologica Sinica, 38(1):112－117 |
| A study of coral reef resilience and implications of adaptive management and rehabilitation in Khanh Hoa Province, Vietnam |
| A study of coral reef resilience and implications of adaptive management and rehabilitation in Khanh Hoa Province, Vietnam |
| Received:December 08, 2017 |
| DOI：10.1007/s13131-019-1377-7 |
| Key words:coral reefs resilience reef health thermal stress bleaching recruitment rehabilitation |
| 中文关键词: coral reefs resilience reef health thermal stress bleaching recruitment rehabilitation |
| 基金项目: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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| 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. |
| 中文摘要: |
| 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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