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应用生态学报 ›› 2019, Vol. 30 ›› Issue (1): 309-315.doi: 10.13287/j.1001-9332.201901.006

• 研究论文 • 上一篇    下一篇

南漪湖沉积物枝角类卵鞍密度的垂直变化及其与营养盐的关系

胡锦婷1,2,张坤2,何平2,李晓明2,纪磊2,周忠泽1*   

  1. 1安徽大学资源与环境工程学院, 合肥 230601;
    2淮北师范大学生命科学学院, 安徽淮北 235000
  • 收稿日期:2018-05-04 修回日期:2018-10-31 出版日期:2019-01-20 发布日期:2019-01-20
  • 通讯作者: zhzz@ahu.edu.cn
  • 作者简介:胡锦婷, 女, 1992年生, 硕士研究生. 主要从事生物多样性与湿地生态学研究. E-mail: hujint47@126.com
  • 基金资助:

    本文由国家自然科学基金项目(31370470)资助

Vertical change of cladoceran ephippial densities in the sediments of Lake Nanyi and its correlation with the nutrients

HU Jin-ting1,2, ZHANG Kun2, HE Ping2, LI Xiao-ming2, JI Lei2, ZHOU Zhong-ze1*   

  1. 1School of Resource and Environmental Engineering, Anhui University, Hefei 230601, China;
    2School of Life Science, Huaibei Normal University, Huaibei 235000, Anhui, China
  • Received:2018-05-04 Revised:2018-10-31 Online:2019-01-20 Published:2019-01-20
  • Supported by:

    This work was supported by the National Natural Science Foundation of China (31370470).

摘要: 本文研究了南漪湖沉积物(1~28 cm)中枝角类卵鞍密度的垂直变化.共鉴定出中华拟同形溞、盔形溞、蚤状溞、网纹溞、微型裸腹溞、象鼻溞、船卵溞、粗刺大尾溞和盘肠溞9种枝角类的卵鞍.大型溞属种类和小型枝角类卵鞍密度的变化范围分别为0~2.0和0~10.0 ind·g-1 DM.中华拟同形溞和网纹溞分别是南漪湖沉积物大型枝角类和小型枝角类的优势种.中华拟同形溞的卵鞍密度与1#采样点沉积物中总磷含量呈显著负相关,与3#采样点沉积物中总氮、总磷含量均呈显著正相关.在3个采样点中(除2#采样点总氮外),网纹溞的卵鞍密度与沉积物中总氮、总磷含量均呈显著正相关.结果暗示,湖泊富营养化和鱼类捕食影响了南漪湖枝角类群落结构的历史演变.

Abstract: We examined the vertical variations of cladoceran ephippia in the sediments (1-28 cm) of Lake Nanyi. Nine cladoceran ephippia (Daphnia similoides sinensis, Daphnia galeata, Daphnia pulex, Ceriodaphnia sp., Moina micrura, Bosmina sp., Scapholeberis sp., Leydigia leydigii and Chydorus sp.) were identified. The ephippial densities of Daphnia species and small cladocerans ranged from 0 to 2.0 ind·g-1 DM and from 0 to 10 ind·g-1 DM, respectively. D. similoides sinensis and Ceriodaphnia sp. were respectively dominant species of large and small cladocerans in the sediments of Lake Nanyi. The ephippial densities of D. similoides sinensis had a significant negative correlation with total phosphorus content of sediments in the 1# sampling site of Lake Nanyi and had positive correlations with total nitrogen and total phosphorus contents in the 3# sampling site. In three sampling sites (except for total nitrogen contents in the 2# sampling site), there were significant positive relationships between the ephippial densities of Ceriodaphnia sp. and both total nitrogen and total phosphorus contents. Our results suggested that eutrophication and fish predation affected the historical succession of cladoceran community structure in Lake Nanyi.