NUMERICAL SIMULATION OF LARVAL DISPERSAL OF BENTHOS IN AND AROUND THE TAMA RIVER ESTUARY
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- MISHIMA Toyoaki
- 株式会社ハイドロ総合技術研究所
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- KAWASAKI Koji
- 株式会社ハイドロ総合技術研究所
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- SHIMIZU Ryotaro
- 株式会社ハイドロ総合技術研究所
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- NADAOKA Kazuo
- 東京工業大学 環境・社会理工学院融合理工学系
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- FUROTA Toshio
- 東邦大学 理学部東京湾生態系研究センター
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- YAGI Hiroshi
- 防衛大学校 システム工学群建設環境工学科
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- NAKAGAWA Yasuyuki
- 九州大学 大学院工学研究院海域港湾環境防災共同研究部門
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- NIHEI Yasuo
- 東京理科大学 理工学部土木工学科
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- YAMANAKA Ryoichi
- 徳島大学 環境防災研究センター
Bibliographic Information
- Other Title
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- 多摩川河口域における干潟底生生物の幼生分散数値シミュレーション
- タマガワ カコウイキ ニ オケル ヒガタ テイセイ セイブツ ノ ヨウセイ ブンサン スウチ シミュレーション
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Abstract
The behavior of planktonic larvae in the Tama River estuary and Tokyo Bay was examined by a larval dispersal model developed in this study for the estuarine bivalve Corbicula japonica and the estuarine crab Chiromantes dehaani larvae. In the model for C. japonica larvae, the vertical movement due to the preferred salinity and the water temperature and/or salinity dependent mortality rates and others were taken into account. For C. dehaani larvae, the effects of the diurnal vertical movement under the influence of hypoxic bottom water and the water temperature dependent mortality rate and others were modeled. The numerical simulation output was confirmed to reasonably well reproduce the spatial distribution patterns of the relative larval population density and the fractional age ratios of larvae found in the field survey.
Journal
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- Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering)
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Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 74 (2), I_1309-I_1314, 2018
Japan Society of Civil Engineers
