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长江口附近海域大型底栖动物群落特征
引用本文:李宝泉,李新正,王洪法,王永强,王金宝,张宝琳.长江口附近海域大型底栖动物群落特征[J].动物学报,2007,53(1):76-82.
作者姓名:李宝泉  李新正  王洪法  王永强  王金宝  张宝琳
作者单位:中国科学院海洋研究所,青岛,266071
基金项目:国家自然科学基金资助项目(No.40276044)~~
摘    要:利用2002年9月在长江口附近海域进行的大型底栖动物定量采集样品,采用物种优势度计算方法和大型多元统计分析软件PRIMER,研究了该海域大型底栖动物群落的优势种组成和物种多样性、生物量和丰度、群落等级聚类分析(CLUSTER)和非度量MDS标序以及群落受污染扰动情况。本次调查共获得长江口附近海域大型底栖动物154种,其中多毛类环节动物60种,甲壳动物30种,软体动物28种,棘皮动物25种,其它类群动物11种。群落中优势种的地位都不明显,只有虫(Listriolobussp.)、豆形短眼蟹(Xenophthalmus pinnotheroidesWhite)、拟单指虫(Cossurella dimorphaHartman)为相对重要的种类。栖息种数、平均生物量和丰度以及3个多样性指数H′、D和J的空间分布无明显的规律,在122°E以东海域呈不连续的斑块或镶嵌状分布。群落结构聚类分析和MDS标序表明,20个取样站的群落结构相似性程度都非常低,为10%-30%,仅有A12和E4两个站Bray-Curtis相似性系数达到50%。ABC曲线表明,近长江口的A4站和A14站的底栖动物群落已有受到一定程度的轻微污染扰动的趋势;而距长江口较远的P9和P5两站ABC曲线状况正常,表明该处的大型底栖动物群落尚未受到干扰。

关 键 词:大型底栖动物  群落结构  生物多样性  长江口
修稿时间:2006-07-112006-09-20

Characters of a macrobenthic community off the Changjiang River Estuary
LI Bao-Quan,LI Xin-Zheng,WANG Hong-Fa,WANG Yong-Qiang,WANG Jin-Bao,ZHANG Bao-Lin.Characters of a macrobenthic community off the Changjiang River Estuary[J].Acta Zoologica Sinica,2007,53(1):76-82.
Authors:LI Bao-Quan  LI Xin-Zheng  WANG Hong-Fa  WANG Yong-Qiang  WANG Jin-Bao  ZHANG Bao-Lin
Institution:Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, Shandong, China
Abstract:The characters of macrobenthic community off the Changjiang River Estuary are approached based on the data collected from the 20 sampling stations using the multivariate analysis software PRIMER,of which CLUSTER,MDS,Abundance/Biomass curve(ABC)and DIVERSE function part are adopted.The results show that 154 species were found in the area,including 60 species of Polychaeta,30 of Crustacea,28 of Mollusca and 24 of Echinodermata;the dominant species are not very distinct,the relative important or common species are Listriolobus sp.,Xenophthalmus pinnotheroides White and Cossurella dimorpha Hartman.The results of CLUSTER and MDS analysis show that the structure of the macrobenthic communities in the 20 stations are very different,the value of their Bray-Curtis similarity varies in 10%-30%,with exception of those from the stations A12 and E42 where values of the Bray-Curtis similarity are up to 50%.The results of the ABC analysis show that the macrobenthic community at the stations close to the Changjiang River Estuary had been affected by pollution or other human beings activities.
Keywords:Macrobenthos  Community  Biodiversity  Changjiang River Estuary
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