水生态学杂志2016，Vol.37Issue(6)：23-29,7.DOI:10.15928/j.1674-3075.2016.06.004
锦江河国家级水产种质资源保护区浮游植物群落时空变化
Temporal and Spatial Variation of the Phytoplankton Community in the National Aquatic Germplasm Reserve of Jinjiang River
摘要
Abstract
Jinjiang River National Aquatic Germplasm Reserve is located in Tongren City,Guizhou Province,and the river maintains a healthy aquatic ecosystem.In this study,we explored the structure and spatial-temporal dy-namics of the phytoplankton community in the section comprising the national aquatic germplasm reserve.The water quality of the reserve was then evaluated based on the biodiversity indices and phytoplankton density.The results will add to the accumulating database used to support resource conservation and environmental assessment by the wading engineers at the reserve.In January (winter),April (spring),July (summer)and October (autumn)of 201 5,phytoplankton surveys were carried out in the core zone and the multiple-use experimental zone of the nation-al reserve,with 5 sampling sites in each area.A total of 1 01 phytoplankton species,belonging to 45 genera,32 families,1 8 orders (1 suborder)and 6 phyla,were identified.Bacillariophyta dominated (42 species),account-ing for 41 .58% of the total species,followed by Chlorophyta (32 species),accounting for 31 .68% of the total species.The number of phytoplankton species in the core zone was much lower than in the experimental zone.Phy-toplankton density reached a maximum of 2.59 ×1 06 cells/L in summer and a minimum of 0.1 8 ×1 06 cells/L in winter.Margalef richness,Shannon-Wiener diversity and Pielou evenness indices reflected the seasonal variation, with values,respectively,of 2.99,2.30 and 0.85 in summer and 1 .89,1 .73 and 0.55 in winter.Phytoplankton density and biomass were higher in the experimental zone as were the Shannon-Wiener diversity and Margalef rich-ness indices:2.73 and 2.28 in the experimental zone compared to 2.40 and 1 .74 in the core zone.The Pielou evenness index was higher in the core zone.In general,the water quality in the Jinjiang Aquatic Germplasm Re-serve was β-mesosaprobic-oligosaprobic,based on the phytoplankton density and biodiversity indices.关键词
锦江河/国家级水产种质资源保护区/浮游植物/时空变化Key words
Jinjiang River/national aquatic germplasm reserve/phytoplankton/temporal and spatial variation分类
农业科技引用本文复制引用
梁正其,姚俊杰,李燕梅..锦江河国家级水产种质资源保护区浮游植物群落时空变化[J].水生态学杂志,2016,37(6):23-29,7.基金项目
贵州省科技厅项目（黔科合 LH 字［2014］7481）；贵州省高等学校重点支持学科［黔教合重点学科字（2011）232］；铜仁市创建国家环境保护模范城市课题。 （）
