| 北仑河口海域小型硅藻群落结构及其与环境因子的关系 |
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| 引用本文： | 陈敏,蓝东兆,任建业,张学雷,兰彬斌,戚洪帅.北仑河口海域小型硅藻群落结构及其与环境因子的关系[J].生态环境,2011(Z1). |
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| 作者姓名： | 陈敏 蓝东兆 任建业 张学雷 兰彬斌 戚洪帅 |
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| 作者单位： | 中国地质大学(武汉)资源学院;国家海洋局第三海洋研究所;国家海洋局第一海洋研究所; |
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| 基金项目： | 广西908专项(GX908-01-09); 国家自然科学基金(40476005); 国家海洋局第三海洋研究所基本科研业务费(海三科2010002) |
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| 摘 要： | 北仑河口地处亚热带-热带地区,气候温暖湿润,是我国北部湾沿岸与越南交界的一个重要入海河口。于2008年3、5、8和11月分别采集该海域小型浮游硅藻,同时测定水温、盐度等水体参数,以及氮、磷、硅等18项水化学指标,分析了小型硅藻群落结构变化与环境因子之间的关系。该河口区的小型硅藻主要由纤细翼鼻状藻Proboscia alata f.gracillima、拟旋链角毛藻Chaetoceros pseudocurvisetus、细弱海链藻Thalassiosira subtilis、中华齿状藻Odontella sinensis和菱形藻Nitzschiasp.等优势种类组成,并且存在明显的季节性演替。应用典范对应分析,发现影响北仑河口硅藻群落结构的主要环境因子为温度、盐度、N、Si、Hg和悬浮体质量浓度等,且不同季节的主控因素有所差异。菱形藻对温度和Cu、As、Zn和Hg等重金属的耐受性较强。纤细翼鼻状藻适宜于生长在水体透明度高的海域,悬浮体质量浓度以6.27 mg.L-1以下为宜。拟旋链角毛藻受Cr的影响较大,高含量的Cr会限制其生长。而细弱海链藻和中华齿状藻对Hg的耐受性较强。
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| 关 键 词： | 硅藻 北仑河口 环境因子 典范对应分析(CCA) |
Relationship between diatom community structure and environmental factors in Beilun River Estuary |
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| CHEN Min,LAN Dongzhao,REN Jianye,ZHANG Xuelei LAN Binbin,QI Hongshuai .Faculty of Resources,China University of Geosciences,Wuhan ,China,.Third Institute of Oceanography,State Oceanic Administration,Xiamen ,.First Institute of Oceanography,Qingdao.Relationship between diatom community structure and environmental factors in Beilun River Estuary[J].Ecology and Environmnet,2011(Z1). |
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| Authors: | CHEN Min LAN Dongzhao REN Jianye ZHANG Xuelei LAN Binbin QI Hongshuai Faculty of Resources China University of Geosciences Wuhan China Third Institute of Oceanography State Oceanic Administration Xiamen First Institute of Oceanography Qingdao |
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| Institution: | CHEN Min1,2,LAN Dongzhao2,REN Jianye1,ZHANG Xuelei3 LAN Binbin2,QI Hongshuai2 1.Faculty of Resources,China University of Geosciences(Wuhan),Wuhan 430074,China,2.Third Institute of Oceanography,State Oceanic Administration,Xiamen 361005,3.First Institute of Oceanography,Qingdao 266061 |
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| Abstract: | Beilun River is located in the warm and humid subtropical-tropical regions and is an important estuary in the Beibu Gulf coast adjacent to Vietnam.We carried out a field investigation in 2008,and found that the diatom community is mainly composed of Probosica alata f.gracillima,Chaetoceros pseudocurvisetus,Thalassiosira subtilis,Odontella sinensis and Nitzschia sp.These dominant species showed significant seasonal variation.By means of CCA analysis,we found that temperature,salinity,N,Si,Hg and suspension w... |
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| Keywords: | diatom Beilun River Estuary environmental factors canonical correspondence analysis(CCA) |
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