天津农学院学报 ›› 2020, Vol. 27 ›› Issue (4): 49-55.doi: 10.19640/j.cnki.jtau.2020.04.010

• 研究与简报 • 上一篇    下一篇

大清河水系浮游植物多样性分析及评价

陈佳林, 余海军, 王茜通信作者   

  1. 天津农学院 水产科学学院,天津 300392
  • 收稿日期:2019-06-27 出版日期:2020-12-31 发布日期:2020-12-25
  • 通讯作者: 王茜(1971—),女,副教授,博士,主要从事水生动物及昆虫分子系统学研究。E-mail:wqgt1999@163.com。
  • 作者简介:陈佳林(1993—),男,硕士在读,主要从事水生生物多样性研究。E-mail:cjl550594951@163.com。
  • 基金资助:
    国家自然科学基金(31672264)

Analysis and evaluation of phytoplankton diversity in Daqinghe basin

Chen Jialin, Yu Haijun, Wang QianCorresponding Author   

  1. College of Fisheries, Tianjin Agricultural University, Tianjin 300392, China
  • Received:2019-06-27 Online:2020-12-31 Published:2020-12-25

摘要: 对大清河水系2018年5月和8月的浮游植物多样性进行了监测分析,结果表明大清河水系水体中共有浮游植物5门58种,物种较丰富。其中种数最多的为绿藻门22种,占总种数的37.93%;最少的为金藻门1种,占比为1.72%;藻细胞密度最大的为硅藻门6 004.33×106个/L,占总藻细胞密度的59.69%,最小的为金藻门3.76×106个/L,占比为0.04%;优势种为铜绿微囊藻(Microcystis aeruginosa)、尖针杆藻(Synedra acus)、四角十字藻(Crucigenia quadrata)、二形栅藻(Scenedesmus dimorphus)、小席藻(Phormidium tenue)、尺骨针杆藻(Stauroneis anceps)、螺旋弓形藻(Schroederia spiralis);浮游植物细胞密度时间、空间分布不均,变化较大。利用Shannon-Wiener 指数、Pielou指数和Margalef指数计算大清河水系浮游植物多样性指数,综合评价其水质为中度污染。

关键词: 大清河水系, 浮游植物, 多样性分析

Abstract: The phytoplankton diversity of Daqinghe basin was analyzed in May and August in 2018. The results showed that there were a total of 58 species and 5 phyla in Daqinghe basin, indicating a high diversity of species. Among them, chlorophyceae were the main phytoplankton groups. There were 22 species of chlorophyte in the mainstream, accounting for 37.93% of the total phytoplankton species. The minority were chrysophyta accounting for 1.72%. Bacillariophyta had the maximum cell density of 6 004.33×106 cell/L, accounting for 59.69% of the total cell density, while the chrysophyta were 3.76×106 cell/L, accounting for 0.04%. The universal dominant species in the river were Microcystis aeruginosa, Synedra acus, Crucigenia quadrata, Scenedesmus dimorphus, Phormidium tenue, Stauroneis anceps and Schroederia spiralis. The cell density of phytoplankton hadunevenly spatial and temporal distribution. This paper used the Shannon-Wiener index, Pielou index and Margalef index to calculate the phytoplankton diversity of Daqinghe basin, indicating that the water quality in the Daqinghe basin was moderately polluted.

Key words: Daqinghe basin, phytoplankton, biodiversity

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