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军山湖、青山湖和瑶湖春夏季节浮游甲壳动物的群落结构及其与环境因子的关系

赵会1,张坤1,彭水秀1,张萌2,邓道贵1*   

  1. (1淮北师范大学生命科学学院, 安徽淮北 235000;2江西省环境保护科学研究院, 南昌 330029)
  • 出版日期:2018-04-10 发布日期:2018-04-10

Community structures of crustacean zooplanktons and their correlation with environmental factors during spring and summer in Junshan, Qingshan and Yaohu lakes.

ZHAO Hui1, ZHANG Kun1, PENG Shui-xiu1, ZHANG Meng2, DENG Dao-gui1*   

  1. (1School of LifeScience, Huaibei Normal University, Huaibei 235000, Anhui, China; 2Jiangxi Provincial Institute of Environmental Protection Sciences, Nanchang 330029, China).
  • Online:2018-04-10 Published:2018-04-10

摘要: 于2016年3—8月,研究了江西省南昌市军山湖、青山湖和瑶湖的春夏季节浮游甲壳动物的群落结构。结果表明:3个湖泊共鉴定出浮游甲壳动物14种,其中枝角类8种、桡足类6种;军山湖、青山湖和瑶湖的浮游甲壳动物密度变动范围分别为0.8~24.9、0.3~18.7和5.9~47.9 ind·L-1;瑶湖的浮游甲壳动物密度显著大于军山湖(P=0.003)和青山湖(P<0.001);秀体溞、微型裸腹溞和象鼻溞等富营养化种类是3个湖泊浮游甲壳动物的夏季优势种,而盔形溞是军山湖的春季优势种。冗余分析表明,水温、叶绿素a和pH是决定3个湖泊浮游甲壳动物群落结构的相同环境因子,位于城市近郊的青山湖和瑶湖的浮游甲壳动物群落结构还与氮、磷等营养盐密切相关。

关键词: 森林经营, 生长, 死亡, 阔叶红松林, 邻域竞争

Abstract: The community structure of crustacean zooplanktons in three lakes (Junshan, Qingshan and Yaohu) in Nanchang, Jiangxi Province was investigated from March to August 2016. The results showed that 14 species of crustacean zooplanktons were identified in the three lakes, eight species out of which belonging to Cladocera and six species belonging to Copepoda. The density of crustacean zooplankton in Lake Junshan, Lake Qingshan and Lake Yaohu ranged 0.8-24.9, 0.3-18.7, and 5.9-47.9 ind·L-1, respectively. The density of crustacean zooplanktons in Lake Yaohu was significantly higher than that in Lake Junshan (P=0.003) and Lake Qingshan (P<0.001). The eutrophic species,Diaphanosoma sp.,Moina micrura, and Bosminasp., were the dominant ones in the three lakes in summer, whereasDaphnia galeatawas the dominantspecies in Lake Junshan in spring. Results from redundancy analysis showed that water temperature, chlorophylla, and pH determined the community structure of crustacean zooplanktons in the three lakes. In addition, the community structure of crustacean zooplanktons in Lake Qingshan and Lake Yaohu located on the outskirts of the city were closely related to nitrogen and phosphorus concentrations.

Key words: forest management, growth, mortality, broadleaved-Korean pine mixed forest., neighborhood competition