【摘要】 通过对2005年涠洲岛珊瑚礁生态调查,结合对以往资料和数据的分析,对比1984年和1964年2次调查结果,掌握涠洲岛珊瑚礁的现状。同时讨论了涠洲岛珊瑚礁区面临的生存威胁,提出保护和管理涠洲岛珊瑚礁的建议,以期建立可持续的生态旅游开发与新型的生态保护生态管理体系。更多还原

【Abstract】 Coral reef around Weizhou Island is one of the fringing reefs in southern China.By the coral reef ecological survey in 2005,status data of coral reef of Weizhou Island were updated after 20 more years of the former survey in 1964 and 1984.A checklist of reef-building corals was presented to compare the existing species among 1964,1984 and 2005.There were 32,35 and 14 species recorded in 1964,1984 and 2005 respectively,which manifest serious biodiversity loss in the past two decades.The distribution area and percentage cover of live reef-building corals have also decreased markedly in comparison with those of 1960s and 1980s,indicating the degradation of the coral reefs in the island.At present,the average percentage cover of live reef-building corals is only 23.8﹪.Even worse,very few(<1﹪ coverage) reef-building corals were observed from the east coastal area of the island.The reasons for coral reef degradation were also discussed.The establishment of coral reef reserve was strongly recommended in order to protect and restore the coral reef in Weizhou Island.更多还原