| 嘉陵江合川段浮游生物及其与环境因子的关系 |
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| 引用本文： | 王恕桥,但言,李燕,沈子伟,余凤琴.嘉陵江合川段浮游生物及其与环境因子的关系[J].中国农学通报,2022,38(36):74-79. |
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| 作者姓名： | 王恕桥 但言 李燕 沈子伟 余凤琴 |
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| 作者单位： | 1.重庆市水产科学研究所，重庆 401120;2.农业部长江中上游渔业资源环境科学观测实验站，武汉 430223 |
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| 基金项目： | 农业财政专项“长江水生生物资源与环境调查”项目“嘉陵江下游渔业资源与环境调查”(CJDC-2017-11); 农业部物种品种资源保护费（渔业）项目“重庆市重要渔业水域渔业生态环境监测”(171821301354052169) |
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| 摘 要： | 为了研究嘉陵江合川段浮游生物群落结构及其与环境因子的关系，2018年春季及夏季对该江段浮游生物和环境因子进行了调查分析。共鉴定出浮游植物6门87种，以硅藻门和绿藻门为主；浮游动物4类38种，以轮虫和枝角类为主；浮游植物密度为8.71×104~98.95×104 个/L，浮游动物密度为23.9~417.4个/L，夏季浮游生物密度总体高于春季；根据地表水营养状态指数(TLI)分析显示，研究水域处于中-富营养状态，春季富营养程度高于夏季。温度、pH、叶绿素a均对浮游植物和浮游动物产生影响，CODMn仅对浮游植物产生影响，且呈显著相关(P<0.05)。
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| 关 键 词： | 嘉陵江合川段 浮游动物 浮游植物 环境因子 相关性分析 |
| 收稿时间： | 2021-09-10 |
Plankton Community Structure in Hechuan Section of Jialing River and Its Relationship with Environmental Factors |
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| WANG Shuqiao,DAN Yan,LI Yan,SHEN Ziwei,YU Fengqin.Plankton Community Structure in Hechuan Section of Jialing River and Its Relationship with Environmental Factors[J].Chinese Agricultural Science Bulletin,2022,38(36):74-79. |
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| Authors: | WANG Shuqiao DAN Yan LI Yan SHEN Ziwei YU Fengqin |
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| Institution: | 1.Chongqing Fisheries Research Institute, Chongqing 401120;2.Fishery Resources and Environmental Science Experimental Station of the Upper-Middle Reaches of the Yangtze River, Ministry of Agriculture and Rural Affairs, Wuhan 430223 |
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| Abstract: | To evaluate plankton community structure and its relationship with environmental factors in Hechuan section of Jialing River, plankton community and environmental factors were investigated and analyzed in spring and summer in 2018. The results showed that, a total of 87 species of phytoplankton belonged to 6 phyla were identified, mainly Bacillariophyla and Chlorophyta; 38 species of zooplankton belonged to 4 classes were identified, mainly Rotifera and Cladocera. The abundance of phytoplankton was 8.71×104-98.95×104 ind./L, and zooplankton was 23.9-417.4 ind./L, the overall biological abundance in summer was higher than that in spring. According to TLI index evaluation, the overall studied water area was medium-severe polluted, and the eutrophication in spring was higher than that in summer. Environmental factors which had significant effect on plankton were temperature, pH and chlorophyll-a, and CODMn only had statistically significant effect on phytoplankton (P<0.05). |
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| Keywords: | Hechuan section of Jialing River zooplankton phytoplankton environmental factors correlation analysis |
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