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| Revised Mesohabitat Simulation Modelling-benthos Model |
| Received:February 02, 2015 |
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| KeyWord:macroinvertbrates;mesohabitat;habitat suitability;habtat model |
| Author Name | Affiliation | E-mail | | SHI Xuan | State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China | | | LIU Jing-ling | State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China | jingling@bnu.edu.cn | | YOU Xiao-guang | State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China | | | BAO Kun | State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China | | | MENG Bo | State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China | | | LANG Si-si | State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China | |
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| Abstract: |
| Aimed at damaged habitats and seriously threatened fluvial ecological integrity, mesohabitat model was revised to better quantify the suitability of stream habitat suitability of aquatic organisms in reach scale. Revised MesoHABSIM-benthos Model was built to indicate the habitat suitability of invertebrates. In habitat analysis, the benthos community was selected as common indicators of river basin, because it can be collected widely in the artificial regions, and can well reflect the habitat conditions, especially for benthic conditions. MesoHABSIM(Mesohabitat Simulation Modelling) was mesohabitat model to quantify the relationship of river hydromorphology and presence and abundance of aquatic organisms. It can reflect more detail information of hydromorphology and is more suitable for benthos analysis. The revised model was on the basis of MesoHABSIM and two aspects were improved, including hydromorphological parameters, and structure and functions analysis of invertebrates. In detail, the bottom shear stress(BBS) was increased in the Hydromorphology Model to quantify the bottom conditions of streams that was main habitats of invertebrates. In order to show the structure and function of invertebrate communities, the Functional Feeding Groups(FFG) was also analyzed in the Biology Mode. The groups were classified based on the habitat and food preference of benthos, and the main types include shredder, collector-gatherer, collector-filterer, scraper and predator. |
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