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题名: Structure and spacial distributional pattern of macrozoobenthos in Bao'an Lake
作者: Xie Zhi-Cai ; Ma Kai ; Ye Lin ; Chen Jin ; Cai Qing-Hua
通讯作者: Xie Zhi-Cai ; Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol and Biotechnol, Wuhan 430072, Peoples R China
刊名: Acta Hydrobiologica Sinica
发表日期: 2007
卷: 31, 期:2, 页:174-183
收录类别: 其他
英文摘要: Investigation of macrozoobenthos was carried out in Bao' an Lake in August 2001. All total, 70 taxa were identified from forty-two sampling sites, of which, 15 Oligochaeta 29 Chironomidae, 11 Gastropoda I two Bivalva, 9 other Insecta and 4 other forms. Mollusks constituted the most dominant group and accounted for more than 80% of the total abundance. Among which, Parafossarulus striatulus, Gyraulus albus, Alocinma longicornis, Semisulcospira libertina and Bellamya aeruginosa were the dominant species. The richness and Shannon's diversity per site were all relatively low (7.1 and 1.34 respectively). Assemblages were composed mainly of scrapers (80. 0 %) and collector- gatherers (11 % and to a lesser extent to other functional feeding groups.The investigation data were compiled and a GIS database of macrozoobenthos was established. A vector boundary map of the lake was digitized and georeferenced, then used to introduce sampling sites. Under the support of GIS software Arcview 3.2 and the relative extension modules (Spatial Analyst Extension 2.0 and Kringing Interpolator Extension 3.22 SA), the GIS database was employed to simulate spacial distribution patterns of parameters of macrozoobenthos. The simulation process was based on the principle of Kringing interpolation technique. The simulated results were stored as Arcview Grid format with a grid precision of 20m.The simulated patterns of maerozoobenthos showed that these patterns were relatively high spatial heterogeneity, and distributions of most parameters of macrozoobenthos had usually 2-4 high value distributed zones in the whole lake. Comparison of patterns of total macrophytes biomass with different macrozoobenthos parameters showed that the total density, density of mollusks and Shannon-Wiener index were overlapped in most highly distributed zone. The results indicated that macrophyte was the most important factor influencing the distribution of maerozoobenthos in the macrophyte-type lakes.
ISSN号: 1000-3207
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/18271
Appears in Collections:中科院水生所知识产出(2009年前)_期刊论文

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Xie Zhi-Cai; Ma Kai; Ye Lin; Chen Jin; Cai Qing-Hua.Structure and spacial distributional pattern of macrozoobenthos in Bao'an Lake,Acta Hydrobiologica Sinica,2007,31(2):174-183
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