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应用生态学报 ›› 2012, Vol. 23 ›› Issue (08): 2107-2113.

• 中国生态学学会2011年学术年会会议专栏 • 上一篇    下一篇

大通湖浮游植物群落结构及其与环境因子关系

李德亮1,张婷1**,肖调义1,余建波1,王红权1,陈开健1,刘安民2,李祖军2   

  1. (1湖南农业大学动物科学技术学院, 长沙 410128; 2大通湖天泓渔业股份有限公司, 湖南益阳 413215)
  • 出版日期:2012-08-18 发布日期:2012-08-18

Phytoplankton’s community structure and its relationships with environmental factors in an aquaculture lake, Datong Lake of China.

LI De-liang1, ZHANG Ting1, XIAO Tiao-yi1, YU Jian-bo1, WANG Hong-quan1, CHEN Kai-jian1, LIU An-min2, LI Zu-jun2   

  1. (1College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China; 2Datonghu Tianhong Aquatic Products Co. Ltd., Yiyang 413215, Hunan, China).
  • Online:2012-08-18 Published:2012-08-18

摘要: 2008年12月至2009年10月按季度对养殖湖泊大通湖浮游植物群落结构及与环境因子关系进行了初步研究,并通过与1960年数据的纵向比较,探讨了集约化养殖对大通湖水域环境的影响,为其渔业可持续发展提供理论依据.调查期间,共发现浮游植物98种,隶属于7门54属.优势种类包括二角多甲藻、尖尾蓝隐藻、小球藻、卵形隐藻、梅尼小环藻、啮蚀隐藻、卷曲鱼腥藻、铜绿微囊藻和固氮鱼腥藻,优势种的季节更替明显.浮游植物细胞密度的年平均值为1.84×106 cells·L-1,其中夏季最高,为16.4×106 cells·L-1,其他3个季度在1.71×106~1.98×106 cells·L-1.浮游植物丰富度指数(D)全年在2.01~4.55,Shannon多样性指数(H)在1.26~2.69,均匀度指数(J)在0.69~1.27.典范对应分析表明,水深、水温、透明度、总磷、氧化还原电位、电导率是影响大通湖浮游植物群落结构的主要因子.

Abstract: From December 2008 to October 2009, a seasonal investigation was conducted on the phytoplankton’s community structure and its relationships with environmental factors in Datong Lake. With the comparison of the historical data in 1960, the potential effects of intensive aquaculture on the aquatic environment were analyzed, aimed to provide theoretical support for the sustainable fishery of freshwater lakes. A total of 98 phytoplankton species belonging to 7 phyla and 54 genera were collected, among which, Peridinium bipes, Chroomonas acuta, Chlorella vulgaris, Crytomonas ovate, Cyclotella meneghiniana, Crytomonas erosa, Anabaena circinalis, Microcystis aeruginosa, and Anabaena azotica were the dominant species, and had obvious seasonal variations. The mean annual cell density of the phytoplankton was 1.84×106 cells·L-1, being the highest in summer (16.4×106 cells·L-1) and ranged from 1.71×106 to 1.98×106 cells·L-1 in the other three seasons. The values of the abundance index, Shannon index, and Pielou index of the phytoplankton community were 2.01-4.55, 1.26-2.69, and 0.69-1.27, respectively. Canonical correlation analysis (CCA) showed that water depth, water temperature, transparency, and water total phosphorus content, oxidationreduction potential, and electrical conductivity were the main environmental factors affecting the phytoplankton community structure in the Lake.