| 摘要: |
| 根据2010年和2011年对烟台近海大型底栖动物的周年调查资料, 采用优势度指数、物种多样性指数及Cluster聚类和MDS排序方法, 进行群落特征和群落演替情况的研究。结果表明, 该海域共采集大型底栖动物176种, 其中优势类群为多毛类。群落中的优势种主要包括短叶索沙蚕和不倒翁虫。烟台近海年平均生物量和丰度分别为16.72g/m2和1022ind/m2, 且存在季节性差异。丰富度指数(D)、均匀度指数(J)和多样性指数(H′)的年平均值分别为2.30、0.70和1.91。烟台近海大型底栖动物群落与底质和水深关系密切。群落特征发生了一定程度的变化, 软体动物比例减少, 多毛类比例增加。人类活动包括污水排放、养殖和捕捞、港口建设和船舶航运等干扰是导致上述变化的主要原因。 |
| 关键词: 烟台近海 大型底栖动物 群落特征 演替 |
| DOI：10.11693/hyhz20130300003 |
| 分类号: |
| 基金项目:国家自然科学基金面上项目, 40976086 号; 山东省科技发展计划项目, 2011GGF01003 号; 烟台市科学技术发展计划项目, 2010246号。 |
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| COMMUNITY STRUCTURE OF MACROBENTHOS IN COASTAL WATER OFF YANTAI, EAST CHINA |
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WANG Quan-Chao1,2, LI Bao-Quan1
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1.Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences;2.University of Chinese Academy of Sciences
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| Abstract: |
| To understand the status of macrobenthos community in coastal water off Yantai, East China, we analyzed the community succession and compared it with those of previous surveys. Several indices and methods were adopted, e.g. dominance index, diversity index, richness index, evenness index, Bray-Curtis similarity, and MDS (multidimensional scaling) ordination analysis. In total, 176 species were identified, of which Polychaeta dominated. Lumbrineris latreilliand Sternaspis scutatawere dominant species in four seasons. The average values of biomass and abundance were 16.72g/m2 and 1022ind/m2 , respectively. The community structure of macrobenthos was closely related to sediment type and depth. Some trends in the community had stayed for 20 years, i.e., the increase in Polychaeta species and decrease in Mollusk species, which could be resulted from anthropogenic activities, including waste discharge, mariculture and fishing, harbor building, and shipping. |
| Key words: coastal water off Yantai macrobenthos community structure succession |
