| 长江口潮沟大型底栖动物群落的初步研究 |
| |
| 引用本文： | 袁兴中,陆健健.长江口潮沟大型底栖动物群落的初步研究[J].动物学研究,2001,22(3):211-215. |
| |
| 作者姓名： | 袁兴中 陆健健 |
| |
| 作者单位： | 1. 重庆大学资源与环境科学学院
2. 华东师范大学 |
| |
| 基金项目： | 教育部科技研究 2 0 0 0年重点项目，上海市重点学科项目 (B970 30 2 )资助 |
| |
| 摘 要： | 通过对长江口崇明东滩潮沟系统与大型底栖无脊椎动物进行取样调查 ,研究了潮沟不同生境的底栖动物群落及其多样性 ,分析了潮沟生境异质性与底栖动物群落的关系。研究发现 :①潮沟剖面中出现明显的动物群落分带现象 ,从潮沟底、潮沟边滩到草滩 ,底栖动物种类、生活型组成和生活类群比例反映了河口潮滩潮沟底栖动物生态系列 ;②密度和生物量的分布皆为潮沟边滩 >草滩 >潮沟底 ,但密度与生物量的面上群 /面下群值格局却有不同 ,说明了密度和生物量的优势生活型和生活类群随潮沟生境的差异而变化 ;③潮沟系统 3种生境的多样性指数D ,H′和J值均为草滩 >潮沟边滩 >潮沟底 ,是潮沟系统生境结构分化的结果。潮沟底和潮沟边滩等特殊生境的存在 ,提高了淤泥质河口潮滩的生境异质性 ,说明了潮沟系统在维持河口生态系统底栖动物物种多样性中的重要作用。
|
| 关 键 词： | 大型底栖动物群落 生境异质性 生物多样性 潮沟 长江口潮滩 |
| 文章编号： | 0254-5853(2001)03-0211-05 |
| 修稿时间： | 2000年11月13 |
Preliminary Study on Macrobenthic Community of the Creek in the Tidal Flat of the Changjiang Estuary |
| |
| YUAN Xing-zhong,LU Jian-Jian.Preliminary Study on Macrobenthic Community of the Creek in the Tidal Flat of the Changjiang Estuary[J].Zoological Research,2001,22(3):211-215. |
| |
| Authors: | YUAN Xing-zhong LU Jian-Jian |
| |
| Abstract: | Based on the data collected from samplings on the benthic macro-invertebrate community in various habitats of creek system in eastern beach of Chongming Island in the Changjiang estuary，the structure of benthic macro-invertebrate community，diversity，and relation between habitat heterogeneity of creek system and zoobenthic community were analyzed. Major conclusions from this research are：①Because there are difference in water dynamics and characteristics of sediment，zonation of macrobenthic community exists in creek sections in eastern beach of Chongming Island in the Changjiang estuary. From bottom of creek，bank of creek to grass flat，variations in composition of species，types of life form and life group reflect ecological series of macrobenthos in creek system of estuarine tidal flat. ②Density and biomass for macrobenthic communities of different habitats are in order of bank of creek＞grass flat＞bottom of creek. For value of GS/GSB in density and biomass of macrobenthos，there is variety in different habitats. These results suggest that dominant life form and life group for density and biomass would change with various habitats of creek system. ③As a result of differentiation in habitat structure of creek system，D，H′and J for macrobenthic communities of different habitats are in order of grass flat＞bank of creek＞bottom of creek. Specific habitats such as the bottom and bank of creek increased habitat heterogeneity of estuarine tidal flat，and played an important role in maintaining species diversity in estuarine ecosystem. |
| |
| Keywords: | Macrobenthic community Habitat heterogeneity Biodiversity Creek Tidal flat of the Changjiang estuary |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《动物学研究》浏览原始摘要信息 |
|
点击此处可从《动物学研究》下载全文 |
