Effect of Aquaculture on Material Cycles in Otsuchi Bay, Japan
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概要
- 論文の詳細を見る
A numerical physical-biological coupled model is developed for the study of coastal material cycles including aquaculture. The model calculates spatial distributions of PON (Particulate Organic Nitrogen), POP (Particulate Organic Phosphorus), DON (Dissolved Organic Nitrogen), DOP (Dissolved Organic Phosphorus), Chl-a, zooplankton, NO_3-N, NH_4-N and PO_4-P using simulated current. It also takes into consideration the effects of shellfish feeding and excretion, seaweed photosynthesis, and the loading of DIN from rivers. The model is applied to Otsuchi Bay, in Iwate Pref., in Japan. The model elucidated the cycling of nitrogen among ecological compartments. If the amount of cultured shellfish is extremely increased, the feeding by shellfish is large enough to change the lower trophic level ecosystem, reducing concentration of phytoplankton and POM (Particulate Organic Matter) around the cultured region, while phytoplankton increases far from the culture due to the increase of recycled nutrient by the excretion of shellfish.
- 東京大学の論文
- 2003-03-28
著者
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Takagi Minoru
東京医科歯科大学 院 口腔機能再建学 講座 分子病態学
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Takagi Minoru
Department Of Oral Surgery Nihon University School Of Dentistry At Matsudo
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Kishi M
Hokkaido Univ. Hokkaido Jpn
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SEKIGUCHI Katsushi
Iwate Fisheries Technology Center
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Kishi Michio
Global Warming Research Program Frontier Research System For Global Change
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KISHI Michio
Graduate School of Fisheries Sciences, Hokkaido University
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Kishi Michio
Graduate School Of Fisheries Sciences Hokkaido University:frontier Research System Of Global Change
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Kishi Michio
Graduate School Of Fisheries Sciences Hokkaido University
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Higashi Nobutaka
Graduate School of Fisheries Sciences, Hokkaido University
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Takagi Minoru
Iwate Fisheries Technology Center
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Otobe Hirotaka
Otsuchi Marine Research Center, Ocean Research Institute, The University of Tokyo
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Furuya Ken
Graduate School of Agricultural and Life Sciences, The University of Tokyo
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Aiki Tomokazu
Graduate School of Fisheries Sciences, Hokkaido University
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Kishi Michio
Faculty Of Fisheries Hokkaido University
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Furuya Ken
Graduate School Of Agricultural And Life Sciences The University Of Tokyo
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Aiki Tomokazu
Graduate School Of Fisheries Sciences Hokkaido University
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Otobe H
Univ. Tokyo Iwate Jpn
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Otobe Hirotaka
Otsuchi Marine Research Center Ocean Research Institute The University Of Tokyo
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Higashi N
Graduate School Of Fisheries Sciences Hokkaido University
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