| Budget Amount *help |
¥13,650,000 (Direct Cost: ¥10,500,000、Indirect Cost: ¥3,150,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2017: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2016: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2015: ¥6,760,000 (Direct Cost: ¥5,200,000、Indirect Cost: ¥1,560,000)
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| Outline of Final Research Achievements |
The present study revealed a phosphorus (P) cycling in the western subtropical North Pacific during summer, using cosmogenic radiotracers of 32-P and 33-P and nanomolar concentrations of ambient dissolved and particulate P pools. In the euphotic zone of the study area, trace concentrations of dissolved and particulate P showed spatially uniform distributions, while 33-P/32-P in dissolved P and size-fractionated particulate P pools showed spatially inconsistent distributions. These results suggest that despite of homogeneous ambient P pool concentrations, P cycling varies dynamically in the summer western subtropical North Pacific.
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