湖南省大通湖浮游动物群落结构及其与环境因子关系

生态学杂志

湖南省大通湖浮游动物群落结构及其与环境因子关系

高子涵¹,张健¹,皮杰¹,张婷²,李德亮^1*,肖调义^1

(¹湖南农业大学动物科学技术学院，湖南省特色水产资源利用工程技术研究中心，水产高效健康生产湖南省协同创新中心，长沙 410128； ^2中南大学化学化工学院，长沙 410083)

出版日期:2016-03-10 发布日期:2016-03-10

Zooplankton community structure and its relationships with environmental factors in Datong Lake of Hunan Province.

GAO Zi-han¹, ZHANG Jian¹, PI Jie¹, ZHANG Ting², LI De-liang^1*, XIAO Tiao-yi^1

(¹ Hunan Engineering Technology Research Center of Featured Aquatic Resources Utilization, Collaborative Innovation Center for Efficient and Health Production of Fisheries in Hunan Province, College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China; ^2College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China)

Online:2016-03-10 Published:2016-03-10

摘要/Abstract

摘要： 逐月对湖南省大通湖的浮游动物群落结构及环境因子进行了调查，并通过典范对应分析(CCA)，探讨浮游动物群落结构与环境因子之间的关系，以期为其渔业可持续利用提供参考。营养盐水平、营养状态指数(TSI-M)及浮游动物优势种特征均表明，大通湖水体处于富营养状态。调查共发现浮游动物20属46种，其中原生动物18种、轮虫19种、枝角类4种、桡足类5种；优势种为中华似铃壳虫(Tintinnopsis sinensis)、裂足臂尾轮虫(Brachionus diversicornis)、前节晶囊轮虫(Asplanchna priodonta)、针簇多肢轮虫(Polyarthra trigla)、长三肢轮虫(Filinia longiseta)、长额象鼻溞(Bosmina longirostris)和英勇剑水蚤(Cyclops strenuus)。浮游动物丰度和生物量年平均值分别为1013±125 ind·L^-1和5.12±0.96 mg·L^-1，均在10月—次年3月相对较高，4月最低，空间上整体呈现南高北低的分布趋势。多样性指数(H)、丰富度指数(D)和均匀度指数(J)分别为0.31~1.88、0.11~1.39和0.45~0.90。CCA结果表明，水温与总磷是影响大通湖浮游动物群落结构的主要环境因子。推断，鲢、鳙放养与软体动物空间分布特征是影响大通湖浮游动物群落结构的重要生物因素。

关键词: 枯草芽孢杆菌, 内生细菌, 绿色荧光蛋白, 生物防治, 定殖临界值

Abstract: In this study, zooplankton and environmental factors in Datong Lake of Hunan Province were investigated monthly. Zooplankton community structure and its relationships with environmental factors were analyzed by canonical correspondence analysis (CCA) to provide reference for fisheries sustainable utilization in Datong Lake. The characteristics of water nutritional levels, trophic state index (TSI-M) and dominant zooplankton species indicated that the lake was under accelerated eutrophication status. A total of 46 species from 20 genera were identified, which consisted of 18 species of Protozoa, 19 species of Rotifera, 4 species of Cladoera and 5 species of Copepoda. According to the abundance and occurrence, Tintinnopsis sinensis, Brachionus diversicornis, Asplanchna priodonta, Polyarthra trigla, Filinia longiseta, Bosmina longirostris and Cyclops strenuous were considered as the dominant species. The mean annual abundance and biomass of zooplankton were 1013±125 ind·L^-1 and 5.12±0.96 mg·L^-1, respectively. The abundance and biomass were both relatively high from October to March 2014, and lowest in April, with a spatial pattern of decreasing from South to North. The Shannon index (H), abundance index (D), and Pielou index (J) of the zooplankton community were 0.31-1.88, 0.11-1.39, and 0.45-0.90, respectively. The CCA results indicated that water temperature and total phosphorus concentration were the two main environmental factors affecting the zooplankton community structure in the Datong Lake. The stocking of silver carp and bighead carp as well as the spatial distribution pattern of Mollusca might also play an important role in determining the zooplankton community structure in this shallow lake.

Key words: biocontrol, endophytic bacteria, green fluorescent protein, Bacillus subtilis, colonization threshold

高子涵1,张健1,皮杰1,张婷2,李德亮1*,肖调义1. 湖南省大通湖浮游动物群落结构及其与环境因子关系[J]. 生态学杂志.

GAO Zi-han1, ZHANG Jian1, PI Jie1, ZHANG Ting2, LI De-liang1*, XIAO Tiao-yi1. Zooplankton community structure and its relationships with environmental factors in Datong Lake of Hunan Province.[J]. cje.

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