中文摘要：

为了解海南省三亚市3个典型珊瑚礁区的底栖生物群落现状,并依此反映该区域珊瑚礁生态系统的健康现状和受扰动程度,作者于2011年11月22日～23日在海南岛三亚西岛、鹿回头和亚龙湾3个珊瑚礁自然保护区内采用潜水方法采集底栖动物,并对分析群落的物种组成、优势类群、丰度、生物量、Shannon-Wiener指数、物种丰富度指数和物种均匀度指数以及生物量/丰度比较曲线特征等进行研究。结果共获得三亚珊瑚礁大型底栖动物166种,优势类群为甲壳动物,优势种为珊瑚铠甲虾（Galathea coralliophilus）。调查区底栖动物平均栖息丰度为566.29个/m2,平均生物量为82.146 g/m2；Shannon-Wiener指数、物种丰富度指数和均匀度指数的平均值分别为3.0581、7.9116和0.8494。其中亚龙湾的上述3项指数均高于其他两个采样地点。生物量/丰度比较曲线表明亚龙湾的底栖群落最稳定,受扰动程度最小。

英文摘要：

The macrobenthic community in the coral reef zone of three stations, Xidao Reserve, Luhuitou Reserve and Yalong Bay Reserve （Sanya, Halnan Island） were investigated in November 2011 to understand the community characters and potential anthropogenic impacts on this community. Up to 166 macrobenthic species were identified in this coral reef zone, of which the most dominant group was the Crustacean. The principal dominant species was Galathea coralliophilus. The average density and biomass were 566.29 ind/m2 and 82.146 g/m2 respectively. The values of the three biodiversity indices （Shannon-Wiener （H’）, Species Richness （D） and Pielou evenness （J）） in Yalong Bay were higher than those of other two sampling stations. Abundance-biomass comparison curves showed that the community of Yalong Bay is the most stable one.