海南大洲岛后港造礁石珊瑚的种类组成与分布

Species Composition and Distribution of Scleractinia Coral in the Port of Hainan Dazhou Island

采用断面法对海南大洲岛后港的造礁石珊瑚开展了为期两年的调查研究,调查表明:后港造礁石珊瑚共有12科22属42种,优势种为风信子鹿角珊瑚、鼻形鹿角珊瑚、佳丽鹿角珊瑚、丛生盔形珊瑚、二异角孔珊瑚、精巧扁脑珊瑚、指状蔷薇珊瑚、脆蔷薇珊瑚、多孔鹿角珊瑚和澄黄滨珊瑚等10种.在对比两年的珊瑚覆盖率、死亡率和硬珊瑚补充量变化时发现,2014年后港珊瑚覆盖率和硬珊瑚补充量较2013年略差,而珊瑚死亡率却较2013年的珊蝴死亡率明显增高,经分析认为:2014年珊瑚死亡率大幅上升很可能与强台风有关.

In the report, the cross section method was performed to investigate the scleractinia coral in the port of Hainan Dazhou Island for 2 years. The results indicated that there were 42 Hermatypic coral species in 22 genera among 12 families, the 10 dominant species were Acropora hyacinthus, A. nasuta, A. pulchra, Galaxea fascicularis, Goniopora duofasciata, Platygyra daedalea, Montipora digitata, M. fragilis, A. millepora and Porites lutea, respectively. The coverage, mortality and supplement quantity of coral communities in 2014 were significantly lower than that in 2013, and the strong increase of mortality in 2014 is likely to be associated with strong typhoons.