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学科主题: Environmental Sciences & Ecology; Water Resources
题名: Macroinvertebrates in the bed sediment of the Yellow River
作者: Zhao Weihua1, 2; Wang Haijun1; Wang Hongzhu1; Close, Paul G.1, 3
通讯作者: Close, PG (reprint author), Chinese Acad Sci, Inst Hydrobiol, 7 Donghu S Rd, Wuhan 430072, Peoples R China ; zwh820305zwh@163.com ; wanghz@ihb.ac.cn
关键词: Macroinvertebrates ; Species composition ; Distribution pattern ; Sediment ; The Yellow River
刊名: INTERNATIONAL JOURNAL OF SEDIMENT RESEARCH
发表日期: 2011-09-01
卷: 26, 期:3, 页:255-268
收录类别: SCI
文章类型: Article
部门归属: [Zhao Weihua; Wang Haijun; Wang Hongzhu; Close, Paul G.] Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China; [Zhao Weihua] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China; [Close, Paul G.] Univ Western Australia, Ctr Excellence Nat Resource Management, Albany, WA 6330, Australia
WOS标题词: Science & Technology ; Life Sciences & Biomedicine ; Physical Sciences
资助者: Ministry of Water Resources[2007SHZ1-19]
类目[WOS]: Environmental Sciences ; Water Resources
研究领域[WOS]: Environmental Sciences & Ecology ; Water Resources
摘要: Extensive agricultural, industrial and urban development in the Yellow River, China, have modified the sediment-water balance, flow and inundation regimes, longitudinal connectivity, integrity of riparian vegetation, and water quality. Macroinvertebrate assemblages in the bed sediment of main channel and major reservoirs of the Yellow River are described in detail for the first time. A total of 74 taxa comprising 17 taxa of oligochaetes, 48 taxa of aquatic insects, 5 taxa of molluscs, and 4 taxa of other animals were recorded. A range of feeding guilds were represented, including, collector-gatherers (32 taxa), predators (17 taxa), scrapers (16 taxa), shredders (6 taxa) and collector-filterers (2 taxa). Both the mean density and biomass of macroinvertebrates were significantly higher in sites located in the artificial reservoirs compared with the main river channel. Assemblages varied spatially; Oligochaetes dominated assemblages in upper reaches, insects dominated in middle reaches and other animals (e. g. Crustacea) dominated in lower reaches. Collector-gatherers were dominant throughout the entire river. Classification analysis identified five site-groups on the basis of macroinvertebrate presence/absence: downstream of reservoirs; vegetated sites; reservoir sites; polluted sites, and; lower-reach sites. Lower macroinvertebrate richness, density and biomass, compared with other similar large rivers, were attributed to modification of the sediment-water balance and associated disturbance of benthic habitats. Pollution, stability of sediment and sediment concentration combined to influence the distribution of macroinvertebrates. This knowledge will substantially benefit the recent focus on the health and environmental water requirements of the Yellow River.
英文摘要: Extensive agricultural, industrial and urban development in the Yellow River, China, have modified the sediment-water balance, flow and inundation regimes, longitudinal connectivity, integrity of riparian vegetation, and water quality. Macroinvertebrate assemblages in the bed sediment of main channel and major reservoirs of the Yellow River are described in detail for the first time. A total of 74 taxa comprising 17 taxa of oligochaetes, 48 taxa of aquatic insects, 5 taxa of molluscs, and 4 taxa of other animals were recorded. A range of feeding guilds were represented, including, collector-gatherers (32 taxa), predators (17 taxa), scrapers (16 taxa), shredders (6 taxa) and collector-filterers (2 taxa). Both the mean density and biomass of macroinvertebrates were significantly higher in sites located in the artificial reservoirs compared with the main river channel. Assemblages varied spatially; Oligochaetes dominated assemblages in upper reaches, insects dominated in middle reaches and other animals (e. g. Crustacea) dominated in lower reaches. Collector-gatherers were dominant throughout the entire river. Classification analysis identified five site-groups on the basis of macroinvertebrate presence/absence: downstream of reservoirs; vegetated sites; reservoir sites; polluted sites, and; lower-reach sites. Lower macroinvertebrate richness, density and biomass, compared with other similar large rivers, were attributed to modification of the sediment-water balance and associated disturbance of benthic habitats. Pollution, stability of sediment and sediment concentration combined to influence the distribution of macroinvertebrates. This knowledge will substantially benefit the recent focus on the health and environmental water requirements of the Yellow River.
关键词[WOS]: PATTERNS ; ECOLOGY ; STREAM ; FLOW
语种: 英语
WOS记录号: WOS:000295410600001
ISSN号: 1001-6279
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/16423
Appears in Collections:淡水生态学研究中心_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
3.Univ Western Australia, Ctr Excellence Nat Resource Management, Albany, WA 6330, Australia

Recommended Citation:
Zhao Weihua; Wang Haijun; Wang Hongzhu; Close, Paul G..Macroinvertebrates in the bed sediment of the Yellow River,INTERNATIONAL JOURNAL OF SEDIMENT RESEARCH,2011,26(3):255-268
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