生物学杂志

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南漪湖春夏季浮游植物群落结构及其与环境因子的关系

  

  1. 淮北师范大学 生命科学学院 资源植物生物学安徽省重点实验室, 淮北 235000
  • 出版日期:2019-02-18 发布日期:2019-02-18
  • 通讯作者: 邓道贵,教授,主要从事湖泊浮游生物生态学研究,E-mail: dengdg@263.net
  • 作者简介:彭水秀,硕士研究生,主要从事浮游生物生态学研究,E-mail: psxiu1101@126.com
  • 基金资助:
    国家自然科学基金(31370470)

Community structure of phytoplankton and its correlation with environmental factors during spring and summer in Lake Nanyi

  1. School of Life Sciences, Anhui Key Laboratory of Resource and Plant Biology,Huaibei Normal University, Huaibei 235000, China
  • Online:2019-02-18 Published:2019-02-18

摘要: 2015年3月至8月对安徽南漪湖浮游植物群落结构进行了研究。结果显示,南漪湖共鉴定出浮游植物7门60属120种,其中绿藻门69种,其次为硅藻门(16种)、蓝藻门(14种)和裸藻门(13种)。浮游植物的总密度和总生物量(平均值±标准差)分别为(90.53± 58.48)×105 cells/L和(4.21±2.48)mg/L。浮游植物总密度呈现逐渐升高的趋势,而浮游植物总生物量呈现先降低再升高的趋势。春季浮游植物生物量以扁裸藻属Phacus和小环藻属Cyclotella为主,夏季以裸藻属Euglena、盘星藻属Pediastrum和微囊藻属Microcystis为主。水温及营养盐快速变化可能是造成南漪湖春夏浮游植物群落结构季节变化的重要原因。

关键词: 南漪湖, 浮游植物, 群落结构, 环境因子

Abstract: Phytoplankton community structure of Lake Nanyi in Anhui province was studied from March to August, 2015. The results showed that one hundred and twenty species belonging to seven phyla and sixty genera were identified in Lake Nanyi, among which Chlorophyta (69 species) ranked the first, followed by Bacillariophyta (16 species), Cyanobacteria (14 species) and Euglenophyte (13 species). The total density and total biomass (Mean±standard deviation) of phytoplankton in Lake Nanyi were (90.53±58.48)×105cells/L and (4.21±2.48) mg/L, respectively. Phytoplankton density in Lake Nanyi showed an increasing trend during the study period, whereas the pattern of phytoplankton biomass was decreased firsly and then increase. In spring, the phytoplankton biomass was dominated by Phacus and Cyclotella, whereas it was replaced by Euglena, Pediastrum and Microcystis in summer. In Lake Nanyi, the rapid changes of water temperature and nutrients may be the important reasons for the seasonal variation of phytoplankton community structure in spring and summer.Lake Nanyi; phytoplankton; community structure; environmental factors

Key words: Lake Nanyi, phytoplankton, community structure, environmental factors

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