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 : 34th Congress - Brisbane (2011) : THEME 5: Environmental Hydraulics and Hydrology : Study on the preservation of zostera marina beds behind detached breakwater
Study on the preservation of zostera marina beds behind detached breakwater
Author : H. Komatsu1, T. Ueda1, M. Fujiwara1, H. Kakegawa2 and Y. Suenaga2
Recently, fishery products have been decreased due to disappearance of Zostera beds and aggravation of water quality. The Zostera marina in Seagrass, is especially important for marine resources as spawning and nursery grounds. In Japan, although a number of Zostera beds developments have been conducted as political projects. There are few appropriate methods to enroot Zostera beds. Therefore, it is necessary to specify the preserving condition of Zostera beds. In Tsuda bay located at eastern part of the Seto Inland Sea, planted Zostera beds have been preserved behind the detached breakwater for over ten years. In this study, we evaluate the transfer mechanism of Zostera seeds from the Zostera beds by applying conditions such as sinking velocity of seeds and tidal current around the detached breakwater into three-dimensional hydrodynamical models. As a result, we examined the appropriate area and new construction method of detached breakwaters for preservation of Zostera beds.
File Size : 1,654,803 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 34th Congress - Brisbane (2011)
Article : THEME 5: Environmental Hydraulics and Hydrology
Date Published : 01/07/2011
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