Fish habitat modelling as a tool for river management
Fish habitat modelling as a tool for river management
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DOI：
10.1016/j.ecoleng.2006.11.002
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发表时间：
2007-03
影响因子：
3.8
通讯作者：
A. Mouton;M. Schneider;J. Depestele;P. Goethals;N. Pauw
中科院分区：
文献类型：
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作者：
A. Mouton;M. Schneider;J. Depestele;P. Goethals;N. Pauw
本文提出了一种综合建模方法来模拟和评估河流物理栖息地变化的生态影响。将基于HEC-RAS软件的一维水力模型与基于模糊逻辑的生态水力建模系统CASiMiR的鱼类栖息地模块相结合，创建了生态水力模拟工具。该工具适用于比利时和欧洲其他地方常见的河段。特别是模拟了堰去除对牛头鱼（Cottus gobio L.）栖息地适宜性的影响。使用水力模型模拟了拆除堰后所研究的延伸段的物理条件。 CASiMiR 将这些条件与生态专家知识联系起来，根据模糊逻辑计算牛头鱼在四种不同流速下的三个生命阶段的栖息地适宜性。结果表明，拆除堰后，所有生命阶段和所有流量的栖息地适宜性均显着增加。该方法在鱼类群落评估和生态河流工程方面具有广阔的前景。
This paper presents an integrated modelling approach to simulate and assess ecological effects of physical habitat changes in rivers. An ecohydraulic simulation tool was created by combining a 1D hydraulic model based on HEC-RAS software and the fish habitat module of CASiMiR, a fuzzy logic-based ecohydraulic modelling system. This tool was applied on a river stretch commonly occurring in Belgium and elsewhere in Europe. In particular the effect of weir removal on habitat suitability for bullhead (Cottus gobio L.) was simulated. Physical conditions of the studied stretch after weir removal were simulated with a hydraulic model. CASiMiR linked these conditions to ecological expert knowledge to calculate habitat suitability for three life stages of bullhead at four different flow rates based on fuzzy logic. Results indicated that after weir removal, habitat suitability increased significantly for all life stages and all flow rates. The presented approach is promising regarding fish community assessment and ecological river engineering.