2010 Fiscal Year Final Research Report
Study of marine DOC carbon cycle based on the radioactive carbon analyses of bacterial rRNA and membrane lipids
| Project/Area Number |
20310004
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (B)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 一般 |
|---|
| Research Field |
Environmental dynamic analysis
|
|---|
| Research Institution | University of Tsukuba |
|---|
Principal Investigator |
UTSUMI Motoo University of Tsukuba, 大学院・生命環境科学研究科, 准教授 (60323250)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
UCHIDA Masao 独立行政法人国立環境研究所, 化学環境研究領域, 研究員 (50344289)
KUMAMOTO Yuichiro 独立行政法人海洋研究開発機構, 地球環境観測研究センター, 技術研究主任 (70359157)
|
|---|
| Project Period (FY) |
2008 – 2010
|
| Keywords | 物質循環 / 海洋 / 化学合成独立栄養 / 古細菌 |
|---|
| 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.
|
Research Products
(13 results)
-
-
-
-
[Presentation] The trans-Arctic water 14C sections from MIRAI and NABOS cruises : Reconstruction of surface mid-deep water ventilation ages and their comparison of past 14C inventory data.2010
Author(s)
Uchida M., Kumamoto, Y., Polyakov, I., Ivanov, V., Kim, Y., Rozman, P., Utsumi M., Shimada, K., Murata, M., Shibata, Y.
Organizer
Second International Symposium on the Arctic Research
Place of Presentation
TOKYO, JAPAN.
Year and Date
2010-12-08
-
-
-
-
-
-
-
-
-
