Modelling of Blue Mussels on a Floating Structure
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- Kitazawa Daisuke
- 東京大学生産技術研究所
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- Tabeta Shigeru
- 東京大学大学院新領域創成科学研究科
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- Kinoshita Tsuguki
- 東京大学大学院新領域創成科学研究科
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- Fujino Masataka
- 国立台湾大学工程科学及海洋工程学系
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- Kato Takayoshi
- 東京大学大学院工学系研究科
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- Sasaki Akira
- 住友生命 (研究当時: 東京大学大学院新領域創成科学研究科)
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- Iume Toshiyuki
- 東京大学大学院新領域創成科学研究科
Bibliographic Information
- Other Title
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- 浮体式構造物に付着するムラサキイガイのモデルに関する研究
- フタイシキ コウゾウブツ ニ フチャク スル ムラサキイガイ ノ モデル ニ カンスル ケンキュウ
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Description
Blue mussels on a floating structure filter a lot of suspended particles in the ambient seawater. They also consume oxygen and release nutrients in their respiration and excretion. These activities of blue mussels may cause water quality to change, so the impacts of them on the surrounding environment should be assessed before construction of the floating structure. To predict quantitatively the change in the pelagic environment, numerical simulation by means of a model of blue mussels is one of the powerful tools. The model contains several parameters such as the relative filtration and respiration rates, whose numerical values should be determined appropriately. To obtain the numerical values of the parameters, decreasing rates of chlorophyll-a and dissolved oxygen are measured in the real sea, instead of determining them from the experimental results in the laboratory. As a result, decreasing rate of chlorophyll-a does not correspond to the concentration of chlorophyll-a around the blue mussels because the filtration of them is limited by low levels of salinity and dissolved oxygen. On the other hand, decreasing rate of dissolved oxygen generally agrees with the amount of dissolved oxygen in the seawater. Then the model of blue mussels is improved using the experimental results. Consequently, it is revealed that the numerical values of the relative filtration and respiration rates are getting larger and larger with increase in water temperature, and they change drastically at the salinity of 12-16 psu. Further, changes in these rates due to water temperature and salinity can be described well using the exponential and switch functions, respectively.
Journal
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- Journal of the Society of Naval Architects of Japan
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Journal of the Society of Naval Architects of Japan 2004 (195), 1-13, 2004
The Japan Society of Naval Architects and Ocean Engineers
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Details 詳細情報について
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- CRID
- 1390001204095465856
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- NII Article ID
- 10013461729
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- NII Book ID
- AN00194094
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- ISSN
- 18842070
- 05148499
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- NDL BIB ID
- 7049342
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed