淡水渔业2026，Vol.56Issue(1)：46-55,10.
湖南采桑湖浮游动物功能群特征及影响因子
Characteristics and influencing factors of zooplankton functional groups in Caisang Lake,Hunan,China
摘要
Abstract
The experiment conducted a seasonal sampling survey in July and November 2023,and January and April 2024 to investigate the functional groups of zooplankton and their main driving factors in Caisang Lake.A total of 43 zooplankton species were identified,including 22 species of Rotifera,12 species of Copepo-da and 9 species of Cladocera.Zooplankton abundance followed the seasonal order of summer>autumn>win-ter>spring,with rotifers dominating in summer and autumn,and copepods prevailing in winter and spring.Zooplankton biomass was the highest in winter,followed by autumn,summer,and spring,with cladocerans being dominant in winter and copepods generally prevalent in other seasons.The seasonal turnover rates of dominant species were 44.44%from summer to autumn,66.66%from autumn to winter,and 70%from winter to spring.The zooplankton community structure was more complex in winter and relatively simple in spring.Six zooplankton functional groups were identified,among which the RF group was dominant in summer,autumn,and winter,with proportions of 56.00%,52.94%,and 36.84%,respectively.In spring,both RF and SCF groups were dominant,each comprising 35.71%of the community.Redundancy analysis revealed that water temperature,total phosphorus,dissolved oxygen,and pH significantly influenced the distribution of zooplankton functional groups in Caisang Lake.关键词
采桑湖/浮游动物/功能群/环境因子/季节演替Key words
Caisang Lake/zooplankton/functional groups/environmental factors/seasonal succession分类
农业科技引用本文复制引用
文际才,危善玉,李天行,刘新华,张健,李德亮..湖南采桑湖浮游动物功能群特征及影响因子[J].淡水渔业,2026,56(1):46-55,10.基金项目
国家重点研发项目(2023YFD2400900) （2023YFD2400900）
湖南省水产产业技术体系项目(HARS-07) （HARS-07）
岳麓山实验室联合引进人才项目(2024RC2003) （2024RC2003）
湖南省教育厅科学研究项目(24C0089) （24C0089）
