上海大莲湖鱼类群落组成及生物多样性  

Species composition and biodiversity of fish community in Dalian Lake, Shanghai

作　　者：岳峰[1] 罗祖奎[2] 吴迪[1] 裴恩乐 王天厚[1] 

机构地区：[1]华东师范大学生命科学学院上海市城市化生态过程与生态恢复重点实验室,上海200062 [2]凯里学院环境与生命科学学院,贵州凯里556011 [3]上海市野生动物保护管理站,上海200233

出　　处：《Zoological Research》2010年第6期657-662,共6页动物学研究（英文）

基　　金：上海市科学和技术委员会重大科技支撑项目(08DZ1203200;08DZ1203202;08DZ1203203)~~

摘　　要：于2009年4月11—19日、4月27—5月8日和5月20—29日3个时间段对大莲湖的鱼类群落特征及其多样性组成进行了调查,共收集鱼类样本24061尾,隶属11科17属22种。群落优势种为鲫(Carassius auratus),占样本个体总数的76.38%;Shannon-Wiener多样性指数(H′)为1.0027,Simpson优势度指数(λ)为0.5959,Pielous均匀度指数(J′)为0.3244,Margalef种类丰富度指标(D)为2.0816,相对稀有种数(R)为90.91%;鱼类群落可分为3个生态类型:江海洄游性鱼类有3种、河湖洄游性鱼类1种和定居性鱼类18种。鱼类食性可分为5种类型:食鱼性鱼类9种、食无脊椎动物性鱼类2种、杂食性鱼类7种、食浮游生物性鱼类有3种和草食性鱼类1种。研究结果表明:大莲湖鱼类群落的多样性指标处于较低水平,稳定性较低;相对于黄埔江下游地区,大莲湖的食鱼性鱼类比例较高,说明位于黄浦江上游的大莲湖之水质好于下游流域。为保护和持续利用大莲湖鱼类资源,应加强监管和对生态环境的保护。A field fish survey of Dalian Lake, Shanghai was undertaken in Apr. 11-19, Apr. 27-May 8 and May 20？29, in total 24,061 fish individuals were collected, representing 22 species from 17 genera and 11 families. The dominant specie is Carassius auratus, accounting for 76.38% of the total. The eigenvalues of species diversity were showing below ： Shannon-Wiener’s index （H′） being 1.0027, Simpson’s index （λ） being 0.5959, Pielous’s index （J′） being 0.3244, Margalef’s index （D） being 2.0816 and relative rare species （R） being 90.91%. The fish community could be classified into 3 ecological types, which including river-sea migratory fish （3 species）, river-lake migratory fish （1 species） and sedentary fish （18 species）. Also they can be subcategoried into five types according to feeding habits, i.e., piscivorous fish （9 species）, invertebrativorous fish （2 species）, omnivores fish （7 species）, planktotrophic fish （3 species）, herbivorous fish （1 species）. The results suggested that the biodiversity index and fish community stability are both at a low level. Compare to the lower reaches of Huangpu River, the proportion of piscivorous fish in Dalian Lake is higher, which suggested the water quality of Dalian Lake, located in the upper reaches of Huangpu River, is better than that in the downstream. It’s required to intensify supervision and strengthen the environment protection of Dalian Lake to guarantee the sustainable development.

关 键 词：上海大莲湖 鱼类群落 生物多样性 

分 类 号：Q958.8[生物学—动物学]