| Budget Amount *help |
¥42,900,000 (Direct Cost: ¥33,000,000、Indirect Cost: ¥9,900,000)
Fiscal Year 2019: ¥8,060,000 (Direct Cost: ¥6,200,000、Indirect Cost: ¥1,860,000)
Fiscal Year 2018: ¥7,410,000 (Direct Cost: ¥5,700,000、Indirect Cost: ¥1,710,000)
Fiscal Year 2017: ¥7,410,000 (Direct Cost: ¥5,700,000、Indirect Cost: ¥1,710,000)
Fiscal Year 2016: ¥20,020,000 (Direct Cost: ¥15,400,000、Indirect Cost: ¥4,620,000)
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| Outline of Final Research Achievements |
The purpose of this research was to develop a method of estimating the movement of living organisms by comparing the isotopic information held in substances and organisms with the multi-elemental isotope information (called isoscapes) shown in space and time. As a result, we have shown that there are organs that store isotopic history in fishes and mammals. We also showed that the migration history of marine organisms can be estimated by using the isotopic distribution and isotopic fractionation process. Furthermore, we were able to establish a wide range of ecosystem traceability methodologies, such as finding out the origin of the seeds and clarifying the nutrient acquisition of heterotrophic plants by using multi-elemental isotope ratios.
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