IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
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You are here : eLibrary : IAHR World Congress Proceedings : 35th IAHR Congress - Chengdu (2013) : THEME 4 - HYDRO-ENVIRONMENT : Effect of a Fixed Weir on Benthic Faunal Communities along a Mountain Stream
Effect of a Fixed Weir on Benthic Faunal Communities along a Mountain Stream
Author : Kazuhei Nomachi, Minoru Arita, Yasunori Muto and Takao Tamura
We investigated effects of a fixed weir on benthic faunal communities. The investigated fixed weir is located in an upper reach of the Katsuura River (Tokushima Pref., Japan). We performed quantitative samplings for benthic animals and measured hydrologic parameters. As a result, the hydrologic parameters change, because of storage of water and only the sand of fine grains passing through the fixed weir. The habitats of benthic animals are influenced by changes of the grain size distribution. Especially, the habitats in the rapids are more affected than in the pools. The diversity of habitats is assumed to decrease.
File Size : 927,281 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 35th IAHR Congress - Chengdu (2013)
Date Published : 18/07/2016
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