Establishment of ecosystem monitoring method using a stable isotope ratios of eggshells of birds flying to the brackish lake
| Project/Area Number |
21651009
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Single-year Grants |
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| Research Field |
Environmental impact assessment/Environmental policy
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| Research Institution | Shimane University |
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Principal Investigator |
SETO Koji 島根大学, 汽水域研究センター, 准教授 (60252897)
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| Project Period (FY) |
2009 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥3,000,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥300,000)
Fiscal Year 2011: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2010: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 2009: ¥1,000,000 (Direct Cost: ¥1,000,000)
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| Keywords | 鳥類 / 卵殻 / カワウ / 酸素・炭素同位体比 / 中海 / 濤沸湖 / 影響評価手法 / 生態系モニタリング手法 |
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| Research Abstract |
In this study, the measurement of carbon isotope oxygen of eggshell carbonate, even if it has not been obtained reliable measurement due to the aging of the mass spectrometer, in a state powdered eggshell carbonate for leave to future has been saved. However, we have proposed to on the method of sample processing. Structure and thickness of the shell is characterized by species were observed. Some species can be identified in this character. Total organic carbon, total nitrogen, total sulfur content were measured in the CNS elemental analyzer using the powder of eggshell carbonate for isotope analysis. In addition, we calculated the TOC/TN ratio from these values. In addition, the XRF elemental analysis was measured about some element. That are valid in the major element, the element was Na, Mg and Ca. These tool are differences by species, but, species differences were observed by combining all factor. Therefore, it is also possible to identify the species of eggshell from these analyzes, which species can be identified to some extent by sampling only fragments. This will be worth that opens up the possibility of as a monitoring tool, will continue to research further.
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Report
(4 results)
Research Products
(24 results)
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[Journal Article] Paleoecological and Paleoenvironmental Changes in Lagoon Notoro-Ko(Japan) during the Last 200 Years Based on Diatom Assemblages and Sediment Chemistry2012
Author(s)
KATSUKI, K., SETO, K., SAITO, M., NOGUCHI, T., SONODA, T. and KIM, J
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Journal Title
地形
Volume: 3(2)
Pages: 197-217
NAID
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Peer Reviewed
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[Journal Article] Novel habitat preference of Ammonia "beccarii" forma 1in a macrobenthoc community on hard substrates in the Ohashi River, southwest Japan2009
Author(s)
Takata, H., Dettman, D. L., Seto, K., Kurata, K., Hiratsuka, J. and Khim
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Journal Title
Jounal of Foraminiferal Research
Volume: 39
Pages: 87-96
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Peer Reviewed
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[Presentation] Past 2000 years Paleoenvironmental changes in core sediments of Nakaumi Lagoon, Southwest Japan
Author(s)
Seto, K., Dettman, D. L., Takata, H., Kishiba, S. and Sato, T
Organizer
Correlation with solar activity and anthropogenic changes
Place of Presentation
PAGES 1st Asia 2k Workshop in Japan, Nagoya University, Japan
Related Report
