| Budget Amount *help |
¥19,240,000 (Direct Cost: ¥14,800,000、Indirect Cost: ¥4,440,000)
Fiscal Year 2010: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2009: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2008: ¥13,130,000 (Direct Cost: ¥10,100,000、Indirect Cost: ¥3,030,000)
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| Research Abstract |
We made up a seawater filtration device which can filter several ten thousand liter to measure radiocarbon (14C) ratio of bacterial rRNA and cell membrane lipid molecules, and the filter samples were collected at the Pacific sector of the Arctic Ocean and the Suruga bay deep seawater drawing up facilities (397 m depth). As the results, the organic carbon production rate by the chemoautotrophic archaea in the Pacific sector of the Arctic Ocean was 0.0013Gt C/year, which is about 0.4% of the primary production rate (0.36 Gt C/year). From the measured value of DO14C and DI14C, it was estimated that about 48-52% of archaea could be chemoautotrophy at 397 m depth of the Suruga Bay.
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