2022 Fiscal Year Final Research Report
Modelling the dynamics of biomolecules in inner bay ecosystems and its application for predicting changes in fishery production environments
| Project/Area Number |
18KK0319
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| Research Category |
Fund for the Promotion of Joint International Research (Fostering Joint International Research (A))
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| Allocation Type | Multi-year Fund |
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| Research Field |
Environmental impact assessment
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| Research Institution | Tohoku University |
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Principal Investigator |
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| Project Period (FY) |
2019 – 2022
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| Keywords | 内湾環境 / 無給餌養殖漁業 / 有機物動態 / 脂肪酸組成分析 |
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| Outline of Final Research Achievements |
Based on field data collected from costal marine systems of the Atlantic Canada (NS & PEI) during this project, I found that the variations in fatty acid compositions of particulate organic matter (POM) across the locations were attributable to the variations in water temperature, salinity and inorganic N/P. I also found that the fatty acid compositions of oysters, which is one of the major non-feeding aquaculture species in the region, were significantly related to food supply conditions of the locations (Seston Reduction Index). Furthermore, I numerically modeled the changes of fatty acid compositions of settling POM and its oxygen consumption.
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| Free Research Field |
物質動態解析，環境生態工学
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| Academic Significance and Societal Importance of the Research Achievements |
海域での養殖漁業は，人間への重要な食料供給過程であり，栄養的に重要な生体分子の供給も担う．代表者は．カナダ東部沿岸海域で野外調査を行い，そこからのデータの統計的解析と数値モデルリングを行った．それらを通じ，必須脂肪酸を含む各種脂肪酸の海域での動態に関する知見を集積し，同時に研究上の新たな課題を抽出した．また本研究を通じて，カナダ東部の研究者と国際共同研究を継続的に実施していく基盤を構築した．
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