生物学杂志

生物学杂志 ›› 2020, Vol. 37 ›› Issue (6): 88-.doi: 10.3969/j.issn.2095-1736.2020.06.088

• 研究报告 • 上一篇    下一篇

北京金海湖浮游生物群落结构及富营养化评价

  

  1. 1. 大连海洋大学 水产与生命学院 辽宁省水生生物重点实验室， 大连 116023；2. 北京市水生野生动植物救护中心， 北京 102100
  • 出版日期:2020-12-18 发布日期:2020-12-21
  • 通讯作者: 赵文，教授，博士生导师，研究方向为水域生态学，E-mail：zhaowen_1963@163.com
  • 作者简介:王哲，硕士研究生，研究方向为水域生态学，E-mail：949836666@qq.com
  • 基金资助:
    北京市农业农村局项目(2016-2018)

Community structure of plankton and eutrophication evaluation in Lake Jinhai, Beijing#br#

  1. 1. College of Fisheries and Life Science, Key Laboratory of Hydrobiology in Liaoning Province, Dalian Ocean University,  Dalian 116023, China； 2. Beijing Aquatic Wildlife Rescue and Conservation Center, Beijing 102100, China
  • Online:2020-12-18 Published:2020-12-21

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摘要： 为了解南水北调北京后金海湖浮游生物群落结构特征及富营养化现状，分别于2017年5、9月和2018年5、9月对金海湖展开水质及浮游生物综合调查。结果表明，金海湖属硅藻-蓝藻型水库，水型为CNaⅠ型：检出浮游植物8门111种（变种），平均密度为4.10×106 ind/L，生物量为6.68 mg/L，多样性指数H′为2.94±0.53，均匀度J为0.73±0.37；检出浮游动物56属97种，平均密度为1 453 ind/L，生物量为0.70 mg/L，H′为3.07±0.09，J为0.64±0.08。4次均为优势种的有尖脆杆藻（Fragilaria acus）、小单环栉毛虫（Didinium balbianii）、螺形龟甲轮虫（Keratella cochlearis）和简单前翼轮虫（Proales simplex）。划分出27个浮游植物功能群，代表性功能群变化：2017年春（D/lM /LO/P/E）、秋（D/T/J/TC/NA），2018年春（D/P/J/NA）、秋（D/T/NA/S1/N）。TLI指数为43.57，属于中营养型。金海湖鱼产力为350.3 kg/hm2，全库最大鱼产力为2.3×105 kg。

关键词: 金海湖, 浮游生物, 功能群, 群落结构, 富营养化, 鱼产力

Abstract: In order to understand the characteristics of plankton community structure and eutrophication status in Lake Jinhai， beijing after the South-to-North Water Transfer Project, a comprehensive survey of water quality and plankton in Lake Jinhai was conducted in May and September, 2017, May and September, 2018, respectively. The results showed that Lake Jinhai belongs to diatom-cyanobacteria reservoir with CNaⅠ water type. A total of 111 species (varieties) of phytoplankton, including 8 phyla, with an average density of 4.10×106 ind/L, biomass of 6.68 mg/L, diversity index H′(2.94±0.53), evenness J (0.73±0.37) were collected. Ninty-seven species of zooplankton belonging to 56 genera were detected, with an average density of 1453 ind/L, biomass of 0.70 mg/L, diversity index H′(3.07±0.09) and evenness J(0.64±0.08). Four dominant species were Fragilaria acus, Didinium balbianii, Keratella cochlearis and Proales simplex. Twenty-seven functional groups of phytoplankton were divided, and the seasonal variation of representative functional groups from 2017 to 2018 was: spring (D/lM /LO/P/E), autumn (D/T/J/TC/NA), spring (D/P/J/NA), autumn (D/T/NA/S1/N), respectively. The TLI index was 43.57, belonging to the middle trophic type. The fish productivity of Lake Jinhai was 350.3 kg/hm2, and the total fish productivity of Lake Jinhai was 2.3×105 kg.

Key words: Lake Jinhai, plankton, functional group, community structure, eutrophication, fish productivity

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