|
|
|
| |
|
|
| 本文已被：浏览 1623次 下载 1398次 |
码上扫一扫！ |
|
|
| 长江口邻近海域夏季大型底栖生物群落特征 |
|
杨 梅,李新正,王洪法,张宝琳
|
|
中国科学院海洋研究所 海洋生物分类与系统演化实验室,中国科学院海洋研究所 海洋生物分类与系统演化实验室,中国科学院海洋研究所 海洋生物分类与系统演化实验室,中国科学院海洋研究所 海洋生物分类与系统演化实验室
|
|
| 摘要: |
| 本文根据2014年6月长江口邻近海域大型底栖生物的调查资料, 采用优势度指数, 物种多样性指数、丰富度指数、均匀度指数, Bray-Curtis相似性聚类和非参数多维标度排序(nMDS)标序方法, 分析了长江口邻近海域夏季大型底栖生物的群落特征。本次调查共采集大型底栖生物135种, 其中多毛类66种, 甲壳动物33种, 棘皮动物14种, 软体动物13种, 其他类群9种。调查海域的大型底栖生物平均丰度为122.2ind/m2,平均生物量为7.8g/ m2。丰度、生物量和多样性指数在不同海区间的空间差异均不显著。大型底栖生物在20%的相似性水平上可以划分为8个群组,各站位间相似性水平较低。ABC曲线表明,伴随海岸带开发及人类活动的持续影响, 长江口邻近海域底栖生境的稳定性受到轻微扰动, 建议继续开展长期连续的监测, 为研究长江口海域环境变化和大型底栖生物群落演替提供基础资料。 |
| 关键词: 长江口 大型底栖生物 多样性 群落结构 |
| DOI：10.12036/hykxjk20160725001 |
| 分类号: |
| 基金项目:中科院先导科技专项(A)“黑潮及其变异对中国近海生态系统的影响”(XDA11020303)和海洋公益性行业科研专项项目(201505004-1) |
|
| Characteristic of summer macrobenthic community in adjacent sea of Yangtze River estuary |
|
YANG Mei,LI Xin-zheng,WANG Hong-fa and ZHANG Bao-lin
|
|
Department of Marine Organism Taxonomy and Phylogeny,InstituteSofSOceanology,ChineseSAcademySofSSciences,Qingdao,Department of Marine Organism Taxonomy and Phylogeny,InstituteSofSOceanology,ChineseSAcademySofSSciences,Qingdao,Department of Marine Organism Taxonomy and Phylogeny,InstituteSofSOceanology,ChineseSAcademySofSSciences,Qingdao,Department of Marine Organism Taxonomy and Phylogeny,InstituteSofSOceanology,ChineseSAcademySofSSciences,Qingdao
|
| Abstract: |
| In this paper, the characteristic of the macrobenthic community in adjacent sea of Yangtze River estuary was studied, based on data collected from cruise in June(summer) of 2014. A total of 135 macrobenthic species were identified, of which, 66 species were Polychaeta, 33 were Crustacea, 14 were Echinodermata, 13 were Mollusca, and the remaining 9 species belong to other animal groups. The average abundance of the macrobenthos in adjacent sea of Yangtze River estuary was 122.2 ind/m2, and the average biomass was 7.8g/m2. The abundance, biomass, Shannon-Wiener index(H"), Margalef"s richness index(D), and Pielou index (J") were not significantly spatial difference. Eight macrobenthic assemblages were identified on the 20% similarity level, with low similarity among stations. The results of the ABC analysis show that with the rapid economical development of coastal zones and the impact of human activities, the stability of the benthonic community in adjacent sea of Yangtze River estuary is disturbedSslightly, therefore, long-term continuous monitoring is recommended and effective comprehensive management measures need to be explored to result in the healthy and sustainable development of the marine ecosystem in adjacent sea of Yangtze River estuary |
| Key words: Yangtze River estuary macrobenthos diversity community structure |
|
|
|
|
|
|
