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Spatial distribution of benthic algae in the Gangqu River, Shangrila, China
Wu, Naicheng1,2; Tang, Tao1; Qu, Xiaodong3; Cai, Qinghua1; Cai, QH, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
2009-03-01
Source PublicationAQUATIC ECOLOGY
ISSN1386-2588
Volume43Issue:1Pages:37-49
AbstractThis study consisted of sampling benthic algae at 32 sites in the Gangqu River, an important upstream tributary of the Yangtze River. Our aims were to characterize the benthic algae communities and relationships with environmental variables. Among the 162 taxa observed, Achnanthes linearis and Achnanthes lanceolata var. elliptica were the dominant species (17.10% and 14.30% of the total relative abundance, respectively). Major gradients and principal patterns of variation within the environmental variables were detected by principal component analysis (PCA). Then non-metric multidimensional scaling (NMS) divided all the sites into three groups, which were validated by multi-response permutation procedures (MRPP). Canonical correspondence analysis (CCA) indicated that three environmental variables (TN, TDS, and TP) significantly affected the distribution of benthic algae. Weighted averaging regression and cross-calibration produced strong models for predicting TN and TDS concentration, which enabled selection of algae taxa as potentially sensitive indicators of certain TN and TDS levels: for TN, Achnanthes lanceolata, Achnanthes lanceolata var. elliptica, and Cymbella ventricosa var. semicircularis; for TDS, Cocconeis placentula, Cymbella alpina var. minuta, and Fragilaria virescens. The present study represents an early step in establishing baseline conditions. Further monitoring is suggested to gain a better understanding of this region.; This study consisted of sampling benthic algae at 32 sites in the Gangqu River, an important upstream tributary of the Yangtze River. Our aims were to characterize the benthic algae communities and relationships with environmental variables. Among the 162 taxa observed, Achnanthes linearis and Achnanthes lanceolata var. elliptica were the dominant species (17.10% and 14.30% of the total relative abundance, respectively). Major gradients and principal patterns of variation within the environmental variables were detected by principal component analysis (PCA). Then non-metric multidimensional scaling (NMS) divided all the sites into three groups, which were validated by multi-response permutation procedures (MRPP). Canonical correspondence analysis (CCA) indicated that three environmental variables (TN, TDS, and TP) significantly affected the distribution of benthic algae. Weighted averaging regression and cross-calibration produced strong models for predicting TN and TDS concentration, which enabled selection of algae taxa as potentially sensitive indicators of certain TN and TDS levels: for TN, Achnanthes lanceolata, Achnanthes lanceolata var. elliptica, and Cymbella ventricosa var. semicircularis; for TDS, Cocconeis placentula, Cymbella alpina var. minuta, and Fragilaria virescens. The present study represents an early step in establishing baseline conditions. Further monitoring is suggested to gain a better understanding of this region.
SubtypeArticle
KeywordCanonical Correspondence Analysis (Cca) Environmental Variables Indicator Value (Indval) Multi-response Permutation Procedure (Mrpp) Non-metric Multidimensional Scaling (Nms) Weighted Averaging (Wa)
Department[Wu, Naicheng; Tang, Tao; Cai, Qinghua] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China; [Wu, Naicheng] Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China; [Qu, Xiaodong] Pusan Natl Univ, Div Biol Sci, Lab Ecol & Behav Syst, Pusan 609735, South Korea
Subject AreaEcology ; Limnology ; Marine & Freshwater Biology
DOI10.1007/s10452-007-9153-8
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Funding OrganizationNational Natural Science Foundation of China [30330140]; Key Project of Knowledge Innovation Program of the CAS [KSCX2-YW427]; National Basic Research Priorities Program [2002CD412310]; Nature Conservancy ; National Natural Science Foundation of China [30330140]; Key Project of Knowledge Innovation Program of the CAS [KSCX2-YW427]; National Basic Research Priorities Program [2002CD412310]; Nature Conservancy ; National Natural Science Foundation of China [30330140]; Key Project of Knowledge Innovation Program of the CAS [KSCX2-YW427]; National Basic Research Priorities Program [2002CD412310]; Nature Conservancy ; National Natural Science Foundation of China [30330140]; Key Project of Knowledge Innovation Program of the CAS [KSCX2-YW427]; National Basic Research Priorities Program [2002CD412310]; Nature Conservancy
Indexed BySCI
Language英语
WOS Research AreaEnvironmental Sciences & Ecology ; Marine & Freshwater Biology
WOS SubjectEcology ; Limnology ; Marine & Freshwater Biology
WOS IDWOS:000263159200004
WOS KeywordDIATOM ASSEMBLAGES ; ENVIRONMENTAL-FACTORS ; WATER-QUALITY ; LAND-USE ; STREAM ECOSYSTEMS ; XIANGXI RIVER ; INDICATORS ; PERIPHYTON ; GEOLOGY ; LAKES
Funding OrganizationNational Natural Science Foundation of China [30330140]; Key Project of Knowledge Innovation Program of the CAS [KSCX2-YW427]; National Basic Research Priorities Program [2002CD412310]; Nature Conservancy ; National Natural Science Foundation of China [30330140]; Key Project of Knowledge Innovation Program of the CAS [KSCX2-YW427]; National Basic Research Priorities Program [2002CD412310]; Nature Conservancy ; National Natural Science Foundation of China [30330140]; Key Project of Knowledge Innovation Program of the CAS [KSCX2-YW427]; National Basic Research Priorities Program [2002CD412310]; Nature Conservancy ; National Natural Science Foundation of China [30330140]; Key Project of Knowledge Innovation Program of the CAS [KSCX2-YW427]; National Basic Research Priorities Program [2002CD412310]; Nature Conservancy
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Cited Times:12[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/7872
Collection期刊论文
Corresponding AuthorCai, QH, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
Affiliation1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China
3.Pusan Natl Univ, Div Biol Sci, Lab Ecol & Behav Syst, Pusan 609735, South Korea
Recommended Citation
GB/T 7714
Wu, Naicheng,Tang, Tao,Qu, Xiaodong,et al. Spatial distribution of benthic algae in the Gangqu River, Shangrila, China[J]. AQUATIC ECOLOGY,2009,43(1):37-49.
APA Wu, Naicheng,Tang, Tao,Qu, Xiaodong,Cai, Qinghua,&Cai, QH, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China.(2009).Spatial distribution of benthic algae in the Gangqu River, Shangrila, China.AQUATIC ECOLOGY,43(1),37-49.
MLA Wu, Naicheng,et al."Spatial distribution of benthic algae in the Gangqu River, Shangrila, China".AQUATIC ECOLOGY 43.1(2009):37-49.
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