黄海特定断面夏秋季大型底栖动物生态学特征  

Cross transection ecological characteristics of macrobenthos from the Yellow Sea in summer and autumn

作　　者：王金宝[1] 李新正[1] 王洪法[1] 刘录三[2] 李宝泉[1] 张宝琳[1] 

机构地区：[1]中国科学院海洋研究所,青岛266071 [2]中国环境科学研究院,北京100012

出　　处：《生态学报》2007年第10期4349-4358,共10页Acta Ecologica Sinica

基　　金：国家重点基础研究("973")资助项目(G1999043709);山东省科学技术发展计划资助项目(031070119)~~

摘　　要：根据2001年8月和2002年8、9、10月共4个航次,在黄海特定断面的10个站采集到的大型底栖动物样品,采用相对重要性指数、物种多样性指数、物种均匀度指数、物种丰度指数,Bray-Curtis相似性系数聚类分析和MDS标序等方法,分析了该区域大型底栖动物的生态学特性。调查共得到定量样品36个,经分析鉴定有大型底栖动物182种,其中多毛类环节动物54种,软体动物29种,甲壳动物66种,棘皮动物17种,其它类群生物16种。相对于邻近海区,物种丰富度指数较小,物种多样性指数相似,均匀度指数较高;各航次中4、5号站种数明显较少,而生物量和栖息密度没有表现出一定的规律性。通过该断面大型底栖动物的研究发现,可将研究区域的大型底栖动物群落分为沿岸广温性群落、温带性群落和暖水性群落,各群落结构保持相对稳定性;主要底栖动物种类组成在2001年和2002年出现较大变化,而在2002年的8、9、10月的种类组成保持相对稳定。The Yellow Sea is a semi-closed shallow water sea in northwestern Pacific, the average depth is 44 meters. Continental climatic changes and several ocean currents including the Yellow Sea coastal currents, the Yellow Sea warm current, and the Yellow Sea Cold Water Mass result in very complicated oceanographic conditions, as well as very complex macrobenthic fauna in terms of community structure, species composition, and quantitative distribution in the Yellow Sea. A cross transection macrobenthic research was conducted in the Yellow Sea in August 2001, and August, October 2002. The sediment samples were collected from 10 stations cross transection from Qingdao coast southwest coast off Korean Peninsula. Samples were grabed as one sample representing a station in one cruise organisms were collected by filtering samples through September, and of China to the by 0.1 m2 box corer, every two successful grabs were regarded 36 samples were obtained in this manner in the four cruises. Living 0.5 mm sieve, and then fixed in 75% alcohol. The characteristics of macrobenthos cross the transection was studied and described with the indices of relative importance, Shannon-Wiener index, species richness index, species evenness index, Bray-Curtis similarity cluster, and MDS ordination. Comparing those of neighboring marine areas, the species richness index of the macrobenthos fauna was lower, while the species evenness index is higher and Shannon-Wiener index is similar. 182 species were identified, of which 54 species were Polychaeta, 29 were Mollusca, 66 were Crustacea, 17 were Echinodermata, and the rest 16 were other animal groups. The number of macrobenthos species in Stations 4 and 5 were distinctly lower than those in other stations. The Bray-Curtis similarity was used to describe the macrobenthic community structure, which shows that the macrobenthos communities in the 10 stations could be devided into three groups in temperature： eurythermal, microthermal, and mesothermal communities. The species composition among sta

关 键 词：大型底栖动物 群落结构 物种组成 黄海 

分 类 号：Q958.8[生物学—动物学]