| 滆湖控藻网围内、外及工程示范区浮游植物群落结构周年变化特征对比研究 |
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| 引用本文： | 张永红,刘其根,孔优佳,陈立婧.滆湖控藻网围内、外及工程示范区浮游植物群落结构周年变化特征对比研究[J].上海海洋大学学报,2016,25(3):422-430. |
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| 作者姓名： | 张永红 刘其根 孔优佳 陈立婧 |
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| 作者单位： | 上海海洋大学 省部共建水产种质资源发掘与利用教育部重点实验室, 上海 201306,上海海洋大学 省部共建水产种质资源发掘与利用教育部重点实验室, 上海 201306,江苏省滆湖渔业管理委员会, 江苏 常州 213161,上海海洋大学 省部共建水产种质资源发掘与利用教育部重点实验室, 上海 201306 |
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| 基金项目： | 国家水体污染控制与治理科技重大专项(2012ZX07101-007);上海市重点学科建设项目(S30701);上海高校知识服务平台上海海洋大学水产动物遗传育种中心(ZF1206) |
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| 摘 要： | 2013年7月至2014年6月对滆湖控藻网围内、外和工程示范区3个区域浮游植物进行了采样调查,分析了浮游植物的群落结构特征及其与环境因子的关系。共鉴定出浮游植物158种,隶属7门80属。控藻网围内有11种优势种,网围外9种,工程示范区5种,网围内与网围外优势度最大的优势种均为不定微囊藻(Microcystis incerta),工程示范区优势度最大的为螺旋颗粒直链藻(Melosira granulate var.angustissima)。浮游植物现存量网围外网围内工程示范区。两两比较LSD结果显示,浮游植物生物密度年均值在控藻网围内、外存在显著差异(P0.05),控藻网围内、外与工程示范区则均存在极显著差异(P0.01)。浮游植物生物量年均值在控藻网围内、外与工程示范区之间都存在极显著差异(P0.01),但是网围内与网围外则无显著差异。冗余分析(RDA)以及两变量相关分析(Pearson)结果均显示水温、Chl.a、COD_(Mn)是影响滆湖浮游植物群落结构的主要环境因子。
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| 关 键 词： | 滆湖 控藻网围 工程示范区 浮游植物 群落结构 |
| 收稿时间： | 2015/3/20 0:00:00 |
| 修稿时间： | 2015/5/29 0:00:00 |
A comparative study of annual dynamics of community structure of phytoplankton between inside and outside of bio-manipulation pen and demonstration project area in Gehu Lake |
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| ZHANG Yonghong,LIU Qigen,KONG Youjia and CHEN Lijing.A comparative study of annual dynamics of community structure of phytoplankton between inside and outside of bio-manipulation pen and demonstration project area in Gehu Lake[J].Journal of Shanghai Ocean University,2016,25(3):422-430. |
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| Authors: | ZHANG Yonghong LIU Qigen KONG Youjia and CHEN Lijing |
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| Institution: | Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources(MOE-affiliated), Shanghai Ocean University, Shanghai 201306, China,Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources(MOE-affiliated), Shanghai Ocean University, Shanghai 201306, China,Fisheries Management Commission of Lake Gehu, Changzhou 213161, Jiangsu, China and Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources(MOE-affiliated), Shanghai Ocean University, Shanghai 201306, China |
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| Abstract: | Phytoplankton community structure in three regions of Gehu Lake was investigated and analyzed from July in 2013 to June in 2014.The three regions include inside and outside of bio-manipulation pen and demonstration project area. A total of 158 phytoplankton species, belonging to 7 phyla and 80 genera, were identified.There were 11 dominant species of phytoplankton in inside of bio-manipulation pen, 9 dominant species of phytoplankton in outside of bio-manipulation pen and 5 dominant species of phytoplankton in demonstration project area. The main dominant species inside and outside of bio-manipulation pen throughout the year was: Microcystis incerta, and in demonstration project area was Melosira granulate var. angustissima.The order of standing crop is: outside of bio-manipulation pen > inside of bio-manipulation pen>demonstration project area. LSD from multiple comparison showed that density of phytoplankton had significant difference between inside and outside of bio-manipulation pen(P<0.05).Extremely significant difference was found between inside of bio-manipulation pen and demonstration project area(P<0.01), between outside of bio-manipulation pen and demonstration project area(P<0.01). Biomass of phytoplankton had extremely significant differences between inside of bio-manipulation pen and demonstration project area(P<0.01), between outside of bio-manipulation pen and demonstration project area(P<0.01).There was no significant difference between inside and outside of bio-manipulation pen. RDA and Pearson showed that water temperature(WT), Chl.a and CODMn were the main environmental variables affecting the community structure of phytoplankton. |
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| Keywords: | Gehu Lake bio-manipulation pen demonstration project area phytoplankton community structure |
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