| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2016: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Outline of Final Research Achievements |
Based on field surveys, we clarified patterns in seasonal and spatial variations of chemical compositions (fatty acid compositions and C & N stable isotope ratios) of particulate organic matter (POM) as well as effects of offshore and river water inputs and oyster farming on POM dynamics in Shizugawa Bay. Furthermore, based on laboratory experiments, we revealed effects of environmental changes, such as nutrient inputs and temperature increase, on production and respiration of POM. Our results demonstrate that modelling POM dynamics taking account of particle size and fatty acid compositions of POM potentially enhance substantially assessments for effects of environmental changes on biogeochemical processes and fishery productions by aquacultures.
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