The macrofaunal community in Fenglin mangrove area, Xiamen
- 海洋环境－已发表论文 
为摸清厦门集美凤林红树林湿地的大型底栖动物群落结构及其多样性现状,2002年1、4、7和10月在厦门集美凤林红树林区进行大型底栖动物调查,4个季度共获得大型底栖动物42种。生物量优势种是软体动物门的珠带拟蟹守螺(Cerithideacingulata)和节肢动物门的弧边招潮(Ucaarcuata)。密度优势种是软体动物门的短拟沼螺(Assimineabrevicula)和环节动物门的沼蚓(Limnodriloidessp.)。集美凤林红树林区大型底栖动物年平均密度和年平均生物量分别为1,990ind./m2和139.0g/m2。密度的季节变化是:1月>4月>10月>7月,生物量的季节变化是1月>10月>4月>7月。聚类分析和数量分布表明,优势种珠带拟蟹守螺、短拟沼螺、弧边招潮和沼蚓的季节变化各不相同。与2002年10月深圳湾福田红树林区大型底栖动物群落的物种多样性指数平均值(0.56)比较,厦门凤林红树林区的平均值较高(2.66)。文中分析了影响大型底栖动物多样性的环境因素。To elucidate the macrofaunal community structure and diversity in Jimei Fenglin mangrove area, we investigated macrofauna in January, April, July, and October 2002. A total of 42 species were collected and identified. Of these, the dominant species in biomass were Cerithidea cingulata and Uca arcuata, while the dominant species in density were Limnodriloides sp. and Assiminea brevicula. The average density and average biomass at all sampling stations in four surveys was 1,990 ind./m2 and 139.0 g/m2, respectively. The density ranked in the following order: January (winter)>April (spring) >October (autumn) >July (summer), while the biomass ranked January>October>April>July. Cluster analysis and quantitative distribution showed that the seasonal variations of Cerithidea cingulata, Uca arcuata, Limnodriloides sp., and Assiminea brevi-cula were different. The average species diversity index of the macrofaunal community in Jimei Fenglin in October 2002 (2.66) was higher than that in Futian, Shenzhen (0.56). The environmental factors that affect macrofaunal diversity were analyzed.