The coral reef ecosystem plays an important role in scientific research and economy. An assessment research on status of the coral reefs was carried out at 6 sites of coastal water from Nghi Son (Thanh Hoa province) to Vung Ro (Khanh Hoa province), Viet Nam between October and December 2015. The research was done using the manta tow method for rapid reef assessment and reef area determination, using reef check for detailed assessment of reef substrate types, etc. 288 species of hard corals under 57 genera and 14 families were identified from the study sites. These species mainly belonged to 4 families, namely Acroporidae, Faviidae, Poritidae and Fungiidae. The research showed the bad condition of the reef at all study sites through such indicators as a low live hard coral cover (average cover of 19.8%), high dead coral cover, recently killed coral, fleshy seaweed, etc. Most of surveyed transects had poor level of hard coral cover, the number of transects having good coral cover was unsignificant. The total reef area of 6 surveyed sites was 809.5 hectares, mainly occupied in Son Tra and Vung Ro. This was the first time coral disease and bleaching widely ranged had been observed and described. However, the reason of this phenomenon has not been mentioned yet and there is a need for more detailed researches on these problems in the coming time to have a basis for protection and management of coral reef ecosystem in Vietnam’s coastal water.

中文翻译：

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气候变化下越南中部沿海珊瑚礁的现状

珊瑚礁生态系统在科学研究和经济中发挥着重要作用。2015 年 10 月至 12 月期间，在越南义山（清化省）到 Vung Ro（庆化省）的 6 个沿海水域进行了珊瑚礁状况评估研究。该研究使用蝠鲼进行采用两种方法进行礁体快速评估和礁面积确定，利用礁体检查对礁体基质类型进行详细评估等，从研究地点共鉴定出硬珊瑚57属14科288种。这些物种主要隶属于4科，即蜂鸟科、蜂鸟科、蜂鸟科和真菌科。研究通过活硬珊瑚覆盖率低（平均覆盖率为 19.8%）、死珊瑚覆盖率高、最近被杀死的珊瑚、肉质海藻等。大部分调查断面的硬珊瑚覆盖水平较差，珊瑚覆盖良好的断面数量不显着。6 个调查点的总礁面积为 809.5 公顷，主要位于山茶和头罗。这是第一次观察和描述范围广泛的珊瑚病和白化。然而，这种现象的原因尚未提及，未来需要对这些问题进行更详细的研究，为越南沿海珊瑚礁生态系统的保护和管理奠定基础。这是第一次观察和描述范围广泛的珊瑚病和白化。然而，这种现象的原因尚未提及，未来需要对这些问题进行更详细的研究，为越南沿海珊瑚礁生态系统的保护和管理奠定基础。这是第一次观察和描述范围广泛的珊瑚病和白化。然而，这种现象的原因尚未提及，未来需要对这些问题进行更详细的研究，为越南沿海珊瑚礁生态系统的保护和管理奠定基础。