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Variation of benthic diatoms in a shallow, eutrophic Chinese Lake, Lake Donghu
Pei, GF; Liu, GX; Hu, ZY; Liu, GX, Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
2006-06-01
Source PublicationJOURNAL OF FRESHWATER ECOLOGY
ISSN0270-5060
Volume21Issue:2Pages:277-284
AbstractBenthic diatom communities were sampled monthly from May 2004 to May 2005 at four different sites in the littoral zone of Lake Donghu, a shallow eutrophic lake of China. The seasonal patterns of the total abundance, which were lowest in summer and highest in spring, were found at all sites. Total densities of diatom assemblages were significantly higher at hyper-eutrophic sites than at moderately eutrophic sites. Melosira varians was the most abundant species and dominant contributor to total abundance at all sites during spring, autumn and winter, whereas Achnanthes exigua dominated benthic diatom assemblages at the site with the highest nutrient concentrations during the summer. Achnanthes lanceolata var. dubia, Gomphonema parvulum, Navicula similis, Navicula verecunda and Nitzschia amphibia were generally observed at all sites throughout the year and were dominant at higher-nutrient sites. The abundance of ambient nutrients was probably responsible for the spatial variation in biomass, composition and diversity of benthic diatom assemblages, and lake water temperature was the major factor that controlled seasonal distribution.; Benthic diatom communities were sampled monthly from May 2004 to May 2005 at four different sites in the littoral zone of Lake Donghu, a shallow eutrophic lake of China. The seasonal patterns of the total abundance, which were lowest in summer and highest in spring, were found at all sites. Total densities of diatom assemblages were significantly higher at hyper-eutrophic sites than at moderately eutrophic sites. Melosira varians was the most abundant species and dominant contributor to total abundance at all sites during spring, autumn and winter, whereas Achnanthes exigua dominated benthic diatom assemblages at the site with the highest nutrient concentrations during the summer. Achnanthes lanceolata var. dubia, Gomphonema parvulum, Navicula similis, Navicula verecunda and Nitzschia amphibia were generally observed at all sites throughout the year and were dominant at higher-nutrient sites. The abundance of ambient nutrients was probably responsible for the spatial variation in biomass, composition and diversity of benthic diatom assemblages, and lake water temperature was the major factor that controlled seasonal distribution.
SubtypeArticle
KeywordAlgal Communities Stream Periphyton Michigan
DepartmentChinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
Subject AreaEcology ; Limnology
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Indexed BySCI
Language英语
WOS Research AreaEnvironmental Sciences & Ecology ; Marine & Freshwater Biology
WOS SubjectEcology ; Limnology
WOS IDWOS:000237400000011
WOS KeywordALGAL COMMUNITIES ; STREAM ; PERIPHYTON ; MICHIGAN
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Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/8982
Collection期刊论文
Corresponding AuthorLiu, GX, Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
AffiliationChinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
Recommended Citation
GB/T 7714
Pei, GF,Liu, GX,Hu, ZY,et al. Variation of benthic diatoms in a shallow, eutrophic Chinese Lake, Lake Donghu[J]. JOURNAL OF FRESHWATER ECOLOGY,2006,21(2):277-284.
APA Pei, GF,Liu, GX,Hu, ZY,&Liu, GX, Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China.(2006).Variation of benthic diatoms in a shallow, eutrophic Chinese Lake, Lake Donghu.JOURNAL OF FRESHWATER ECOLOGY,21(2),277-284.
MLA Pei, GF,et al."Variation of benthic diatoms in a shallow, eutrophic Chinese Lake, Lake Donghu".JOURNAL OF FRESHWATER ECOLOGY 21.2(2006):277-284.
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