鄱阳湖湖区碟形湖泊群鱼类集合群落时空格局及其构建过程的初步研究

项目名称： 鄱阳湖湖区碟形湖泊群鱼类集合群落时空格局及其构建过程的初步研究

项目编号： No.31260107

项目类型： 地区科学基金项目

立项/批准年度： 2013

项目学科： 生物科学

项目作者： 金斌松

作者单位： 南昌大学

项目金额： 50万元

中文摘要： 鄱阳湖至今保持了通江、浅水、草型的自然湖泊特征，其水量主要受长江水位和"五河"流域降水控制，水位变幅巨大，因此造就了独特而复杂碟形湖泊群，是洄游鱼类和定居鱼类重要的繁殖育肥场所和庇护生境，对于渔业资源的维持有着重要的意义。本研究以鄱阳湖湖区的碟形湖泊群为研究对象，通过对卫星资料的分析，解析碟形湖泊水文特征、变化规律和趋势；通过不同时空尺度上的鱼类标本采集，系统的研究碟形湖泊内鱼类物种组成及其数量的时空分布格局；结合多重尺度生态和环境因子分析，研究生态环境因子与碟形湖泊群鱼类群落构建之间的关系；预测湖泊水文特征和环境因子改变对鱼类群落的影响趋势；提出鄱阳湖生态系统及其鱼类生物多样性的保护和管理对策。

中文关键词： 鄱阳湖；鱼类群落；时空动态；食源；多样性

英文摘要： Poyang Lake still maintains the natural features formed by flowing through the Yangtze River, shoal water, macrophytic lake. Its water yield is mainly limited to the Yangtze water level and the precipitation of the "Five Rivers" watersheds. With great water level amplitude, the unique and complex dishing lakes are brought up, which are important habitats for the breeding and growth of migratory and resident fishes. Therefore, it is of great significance for the maintenance of fishery resources. In this proposal, taking the dishing lakes in Poyang Lake region as research habitats, through the analysis on satellite data, we will illustrate the hydrologic characteristics, change rules and tendencies of dishing lacks; through collecting fish specimens in different spatial and temporal scales, we will systematically study the fish composition in dishing lakes, and the spatial and temporal distribution patterns of their communities pattern; at the same time, combined with the analysis on the ecological and environmental factors in multiple scales, we will further study the relation between ecological and environmental factors with fish community assembly in dishing lakes; what's more, we will try to predict the impact trend of the change of lakes' hydrologic characteristics and environmental factors on the fish commun

英文关键词： Poyang Lake；Fish community；temperal and spatial dynamics；food source；diversity