浙江洞头大竹屿岛潮间带大型底栖生物多样性  

Macrobenthos diversity in intertidal zone of Dazhuyu Island,Dongtou County of Zhejiang Province

作　　者：吕永林 张永普[2] 李凯 胡仁勇[2] 周化斌[2] 陈国伟 许曹鲁 

机构地区：[1]温州市渔业技术推广站,浙江温州325003 [2]温州大学生命与环境科学学院,浙江温州325035 [3]洞头县水产科技推广站,浙江洞头325700

出　　处：《生态学杂志》2011年第4期707-716,共10页Chinese Journal of Ecology

基　　金：国家科技支撑计划项目(2007BAD43B03);洞头县科技计划项目(N2008Y178)资助

摘　　要：2009年4、7、10月和2010年1月对大竹屿岛潮间带大型底栖生物进行了调查,共采集到大型底栖生物125种,其中软体动物57种、甲壳动物24种、腔肠动物6种、其他动物6种和藻类32种,分别占总种数的45.6%、19.2%、4.8%、4.8%和25.6%。高潮区优势种为小结节滨螺(Nodilittorina exigua)和短滨螺(Littorina brevicula),中潮区为日本笠藤壶(Tetraclita japonica)和条纹隔贻贝(Septifer virgatus),低潮区为盘管虫(Hydroidessp.)、鼠尾藻(Sargassum thunbergii)和短石蛏(Lithophaga curta)。大型底栖生物总平均丰度和生物量分别为1637ind.m-2和2851.63g.m-2。Shannon指数、Margalef丰富度指数和Pielou均匀度指数的平均值分别为1.63、3.36和0.35。等级聚类和非度量多维标度排序分析结果吻合;比较丰度/生物量曲线表明,群落结构已受到干扰,但群落相对稳定。Investigations were made on the macrobenthos diversity in intertidal zone of Dazhuyu Island in April 2009（spring）,July 2009（summer）,October 2009（autumn）,and January 2010（winter）.A total of 125 macrobenthos species were collected,including 57 mollusca,24 crustacea,6 coelenterates,6 other animals,and 32 macroalgae,accounting for 45.6%,19.2%,4.8%,4.8%,and 25.6% of the total,respectively.The dominant species in high,mid,and low tidal zones were Nodilittorina exigua and Littorina brevicula,Tetraclita japonica and Septifer virgatus,and Hydroides sp.,Sargassum thunbergii,and Lithophaga curta,respectively.The macrobenthos abundance was averagely 1637 ind·m-2,and the biomass was 2851.63g·m-2 on average.The Shannon index,Margalef index,and Pielou evenness index were 1.63,3.36,and 0.35,respectively.There was a consistency between the results of hierarchical clustering and non-metric multidimensional scaling analysis.The abundance/biomass curve showed that the community structure of macrobenthos in the intertidal zone of Dazhuyu Island had been disturbed,but the community was relatively steady.

关 键 词：群落结构 多样性 大型底栖生物 潮间带 大竹屿岛 

分 类 号：Q958.8[生物学—动物学]