生物多样性 ›› 2001, Vol. 09 ›› Issue (2): 115-121.doi: 10.17520/biods.2001018

• 论文 • 上一篇    下一篇

浙江千岛湖浮游动物群落多样性研究

李共国, 虞左明   

  1. 1 (浙江万里学院生物技术研究所,  宁波 315101)
    2 (杭州市环境保护科学研究所,  杭州 310008)
  • 收稿日期:2000-08-28 修回日期:2001-04-19 出版日期:2001-05-20
  • 通讯作者: 李共国

A study on the diversity of a zooplankton community in Lake Qiandaohu, Zhejiang

LI Gong-Guo, YU Zuo-Ming   

  1. 1 Institute of Biotechnology , Zhejiang Wanli University , Ningbo  315101
    2 Institute of Environmental Protection Science , Hangzhou  310008
  • Received:2000-08-28 Revised:2001-04-19 Online:2001-05-20
  • Contact: LI Gong-Guo

1999年1~12月对浙江千岛湖浮游动物的群落结构,包括密度多样性和生物量多样性进行了 系统研究。轮虫类的多样性指数最高,并且当湖泊在一定的营养水平范围内(贫营养型向中 营养型过渡)时,轮虫的密度多样性与湖泊的营养水平呈现相同的变化趋势。以时间和空间 为参照,对千岛湖两种浮游动物多样性指数与群落因素之间进行了相关分析,得到相关关系 如下:月变化密度多样性=-0.922+4.521×密度均匀度,n=12, r=0.872, p<0.001;生物量多样性=1.99-0.348×透明生物量,n=12, r=-0.868, p<0.01;水平变化密度多样性=2.35+0.008×种类数, n=10, r=0.672, p<0.05;生物量多样性=2.88-1.739×生物量优势度, n=10, r=-0.826, p<0.01。

A study on community st ructure of zooplankton , including density diversity and biomass di2 versity , was carried out f rom J an. to Dec. of 1999 in Lake Qiandaohu , Zhejiang. The diversity index of rotifers was the highest observed. The result s show that the higher the t rophic level of the lake , the higher the density diversity index of rotifers in definite t rophic level range (f rom oligot rophic to mesot rophic) . Regression analysis among the two zooplankton diversity indices and community factor under variations in time and space demonst rate the following relationships : Monthly variation  density diversity = - 0. 922 + 4. 521density evenness  n = 12 , r = 0. 872 , p < 0. 001 biomass diversity = 1. 99 - 0. 348 Daphnia hyalina biomass  n = 12 , r = - 0. 868 , p < 0. 01 Horizontal variation  density diversity = 2. 35 + 0. 008 species number  n = 10 , r = 0. 672 , p < 0. 05 biomass diversity = 2. 88 - 1. 739 biomass dominance  n = 10 , r = - 0. 826 , p < 0. 01

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